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Patented Sept. 17, 1946
,
2,407,689
UNITED STATES PATENT OFFICE
2,407,689
CHEMICAL PROCESS AND PRODUCT
' Frank J. Soday, Baton Rouge, La., assignor to
The United Gas Improvement Company, a, cor
poration of Pennsylvania
>
No Drawing; Application February 12, 1944,
Serial No. 522,093
~
10 Claims.
1
(Cl. 106-178)
2
This invention pertains to new compositions of
matter and to methods for their preparation.
More particularly, this invention pertains to
indene-type haloesters, and to processes for the
_
manufacture of oil gas are particularly suitable.
preparation of these new derivatives.
This invention is based upon the discovery that
indene-type halo-esters having the structural
formula
-
R5
R4
7-8b
B
R:
£5 ‘ R1
the aid of catalysts. Such fractions will be re
ferred to herein, generally, as light oil indene
type fractions. The fractions obtained in the
Indene fractions obtained by the distillation of
light oil and boiling mainly between 175 and 190° ,
C., and more particularly between 178 and 185° C.
have been satisfactorily employed for the pro
duction of these new compounds.
10
A preferred type of substituted indene-type
compound to be used in the practice of my in
vention is the alkyl indene hydrocarbons, and
more particularly the methyl indene hydrocar
bons. Light oil fractions boiling mainly between
15 190 and 220° C., which fractions may be further
subdivided into fractions boiling mainly in the
in which any R: represents hydrogen, alkyl such‘
ranges of (a) 190 to 200° C., (b) 200l to 210° C., or
210 to 220° C., are particularly desirable starting
materials for the preparation of indene-type
phenyl groups, one of the group consisting of a 20 haloesters.
Instead of relatively pure fractions containing
and b is a halo group, such as chlorine or bro
a particular indene-type compound, fractions
mine, the remaining group being an OOCR. group,
as methyl, ethyl, propyl, butyl, amyl, and the
like; aryl such as phenyl; alk'yl-aryl such as tolyl,
xylyl, and the like; or aryl-alkyl such as methyl
containing two or more indene-type compounds
in which‘ R has the same meaning as before may
may be employed in the process. For example,
be obtained in good yields from indene and/or
25 a fraction obtained by the distillation of light oil
substituted indenes.
from oil gas, and containing both indene and one
or more methyl indenes, and perhaps higher al
kylated indenes, may be used in the process with
It is an object of the present invention to pro
vide as new compositions of matter indene type
haloesters and methods for their preparation and
puri?cation. Another object of the invention is
excellent results. The mixed derivatives thus
obtained may be used as such, or they may be
separated by any desired method,'such as by
fractionation or by azeotropic distillation.
I have discovered that the haloesters derived
the provision of compounds having unusually de
Ark
sirable properties when used as plasticizing agents
for synthetic plastics and/or rubbers. Still an
other object of the invention is the provision of
from light oil indene-type fractions possess un
usually desirable properties. This is due to the
diates in chemical syntheses. Other objects and
unusually stable nature of the halogen group,
advantages of the invention will be apparent to
particularly when the halogen group is chlorine,
those skilled in the art upon an inspection of the
speci?cation and claims.
in the said compounds, rendering them suitable
The indene-type compounds employed in the
for use as plasticizing agents for a large variety
preparation of these new compounds may be in 40 of polymeric and/or plastic materials.
the form of pure or commercially or technically
I have discovered further that indene-type
halohydrines may be prepared by the action of a
pure indene or substituted indene, or in the form
of a solution or fraction of any desired concen
hypohalous acid, or a compound capable of gen
tration. Of the substituted indenes, mono-sub
erating hypohalous acid in situ, in the presence
stituted indene is frequently preferred. Likewise
of one or more organic acids and/or anhydrides,
alkyl substituted indene is frequently preferred,
upon an indene-type hydrocarbon, or by the re
new compounds which may be used as interme
1
such as when the alkyl group or groups con
action of one or more organic acids and/or an
tain less than six carbon atoms.
hydrides with an indene-type h'alohydrine.
The term “indene-type compound” as used in
The initial step in one method of preparation
the speci?cation is intended to designate indene 50 of indene-type-halohydrines, or mixtures con~
and substituted indene compounds.
.
taining indene-type halohydrines, comprises con- ‘
These indene-type compounds may be obtained
by the distillation of so-called “light oil” from’ oil
gas, carburetted water gas, cracked re?nery
tacting the desired indene-type hydrocarbon,'or
mixture containing at least one indene-type hy
drocarbon, with ,a hypohalous acid, or with a
gases, or coal gas, as well as from other sources. 55 substance, capable of generating hypohalous acid ‘
“light oil” comprises the oily condensates and/or
in situ, ‘in admixture with the desired organic
distillate from tar condensates obtained during
acid and/or anh'ydride.
the manufacture of hydrocarbon-containing gas
Typical organic acids which may be‘ employed
by methods which may involve the pyrolytic de
in the lpreparation of indene haloesters include
60
composition of hydrocarbon oil, with or without
normal fatty acids, such as formic, acetic, pro
2,407,689
3
4
pionic, butyric, valeric, caproic, oenanthic, ca
prylic, pelargonic, capric, undecoic, lauric tri
decoic, myristic, palmitic, margeric, stearic, and
type of agitator has been found to be a very satis
factory method for securing a satisfactory degree
of agitation of the reaction mixture. The turbo
similar acids having a higher number of carbon
atoms; substituted fatty acids such as isobutyric,
mixing unit employed may consist of a multiple- '
blade agitator revolving within a concentric ring
isovaleric, active valeric, trimethyl acetic, iso
supporting numerous vanes, which serves to fur
caproic, methyl n-propyl acetic, diethyl acetic,
ther subdivide the liquid currents set up by the
agitator blades. It is advisable to introduce the
chlorine and indene-type hydrocarbon reactants
sec. butyl acetic, dimethyl ethyl acetic, tert. butyl
acetic, methyl isopropyl acetic, and similar acids;
in the form of streams immediatedly underneath
the agitator blades in order to secure an intimate
contact between the reactants in the liquid phase.
Other methods of agitation which may be em
ployed are the introduction of the reactants into
the reaction vessel through ?ne ori?ces under
pressure, as well as the use of certain inert gases
(e. g., nitrogen or carbon dioxide) for agitating
the reaction mass. An alternative method com
unsaturated acids, such as acrylic acid, metha
crylic acid, crotonic acid, isocrotonic acid, vinyl
acetic acid, and the like; halogenated fatty acids,
such as chloroformic acid; monochloroacetic
acid, dichloroacetic acid, a-chloropropionic acid,
and the like; hydroxy acids, such as glycollic acid,
lactic acid, a-hydroxy-butyric acid, and the like;
amino acids, such as glycine, alanine, valine, leu
cinc, and the like; dibasic acids, such as oxalic
prises introducing the reactants into a centrifugal
pump Operating at a relatively high speed.
The temperature employed in the reaction may
matic carboxylic acids, such as benzoic ‘acid, an
be‘varied over considerable limits, although tem
thranilic acid, salicyclic acid, phthalic acid, and
peratures above 80° C. are rarely employed. Ex
the like; and aryl-su'bstituted aliphatic acids,
such as ,phenyl acetic acid, hydrocinnamic acid,
cellent results are secured by the use of tempera
phenyl propionic acid, and cinnamic acid.
tures in the range of 5 to 40° C.
The use of aliphatic fatty acids for example,
Catalysts such as aqueous solutions of copper
those of less than six carbon atoms, is preferred.
chloride or ferric chloride may be employed if
desired, although excellent yields may be ob
Excellent results are obtained by the use of acetic
acid.
tained in the absence of catalysts.
In general, the use of concentrated acids, such
Other methods which have ‘been developed for
as, above 80% and/or the corresponding anhy
the preparation of hypochlorous acid from chlo
dride, is preferred. Thus, in the case of acetic
rine include the following,
acid, the use of the so-called glacial acetic acid
1. The reaction of chlorine with water in the
is preferred.
presence of mercuric oxide.
The methcds which have been developed for 35
2. The preparation of chlorine oxide from
the preparation of haloesters from indene will
chlorine, followed by the reaction of the chlorine
serve to illustrate the preparation of indene
oxide with water to form an aqueous solution of
type haloesters in general.
hypochlorous acid.
Indene-type haloesters are formed when the
3. Passing chlorine into an aqueous solution of
desired indene-type hydrocarbon is contacted 40 sodium carbonate and sodium bicarbonate.
with aqueous solutions of hypochlorous acid and
4. Passing chlorine into an aqueous alkaline
concentrated acetic acid, for example, at normal
or reduced temperatures. Conditions which pro
5. Passing chlorine into an aqueous alkaline
mote intimate contact of the phases accelerate
' solution of a metallic hypochlorite.
the formation of the desired haloester.
'
45 6. Passing chlorine into water in the presence
The hypochlorous acid used in the reaction
of a material capable of neutralizing the hydro
may be obtained in various ways, such as by the
.chloric acid formed, such as disodium hydrogen
acid, malonic acid, methyl rmalonic acid, succinic
acid, maleic acid, fumaric acid, and the like; ‘aro
solution.
use of chlorine, sodium hypochlorite, or calcium
-
'
phosphate.
hypochlorite as starting materials.
In all cases, the hypochlorous acid so obtained
Numerous methods have been devised for the 50 then may be reacted with an indene-type hydro
preparation of hypochlorous acid from chlorine.
, carbon in the presence of an organic acid to form
Chief among these" is the reaction of chlorine
the desired haloester. In many cases, the‘ two
with water according to the following equation.
reactions involved may be carried out simulta
neously.
Although the proportions of hypochlorous and
hydrochloric acids actually present under normal
operating conditions are quite small, the velocity
of the reaction between the hypochlorous acid
55
'
Methods which have been developed for the
preparation of hypochlorous acid solutions from
an alkali metal'hypohalite, such as sodium hypo
chloi'iiie;i-n'clude the following.
1. The reaction of sodium hypochlorite with
and the indene-type hydrocarbon is so much
greater than that between chlorine, or hydro 60 a weak acid, such as boric acid.
2. The reaction of an alkaline solution of so
chloric acid, and the indene-type hydrocarbon,
dium hypochlorite with sodium bicarbonate.
that it is possible to obtain good yields of the de
3. The reaction of sodium hypochlorite with
_sired chlorohydrine, and hence of the desired
chlorine in the presence of water.
chloroester.
As the reaction is usually carried out, chlorine "_'> Methods which have been developed for the
preparation of hypochlorous acid solutions from
and the indene-type hydrocarbon are separately
an alkaline earth metal hypohalite, such as cal
passed into a suitable vessel containing a concen
cium hypochlorite, include the following.
trated solution of the desired acid. The solution
1. The action of weak acids, such as carbon
is thoroughly agitated throughout the course of
70 dioxide, upon an aqueous solution of calcium
the reaction.
’
i
_
Apparently the most important reaction vari
able is the degree of agitation of the reaction
mixture throughout the course of the reaction.
Thorough agitation appears'to be practically es
sential for good yields. The use of a turbo-mixing
hypochlorite.
‘ 2. The reaction of chlorine with a dilute aque
ous solution of calcium hypochlorite in the pres
ence of an alkali, such as sodium hydroxide.
As mentioned previously, the hypohalous acid
ve.
2,407,689
5
.
6
-
thus obtained may be reacted with an indene
chlorite is soluble in'all proportions in the in-.
type hydrocarbon in the presence of an organic
acid to form the desired haloester. The reactions
may be carried out simultaneously. Thus, a mix
ture of calcium hypochlorite and acetic acid may
dene-type hydrocarbons. The reaction between
hypochlorous acid, the desired indene-type hy
drocarbon, and an organic acid therefore may be
carried out in .a homogeneous system, as the
hypochlorous acid is generated at the same rate
be reacted with the indene-type hydrocarbon.
at which it reacts with the indene-type hydro
carbon. The production of undesirable chlori
nated by-products, such as dichlorides and hy
dene-type hydrocarbon, the organic acid, and 10 drochlorides, is correspondingly reduced.
This process of producing indene-type halo
chlorine may be alternately passed into an aque
, esters is illustrated by the following example.
ous solution of cupric chloride with good agita
tion, the time interval between‘ successive addi
Example 1
tions being relatively short.
A
518
gram
portion
,(7 mols) of tertiary butyl
The reaction may be carried out in any desired 15
alcohol (M. P.=24° C.) was stirred with 2800
manner, such as batch, multiple batch, batch
Various modi?cations of these methods also
may be employed for the production of indene
type haloesters. For example, the desired in
cc. of a 10% aqueous solution of sodium hydrox
ide at a temperature of —10° C. for, a period of
eight hours, a rapid stream of chlorine gas being
countercurrent, or continuous countercurrent
iikthods. The reaction may be carried out in ,a
plurality of reaction vessels, if desired, or it may
be carried out in one or more towers, which may 20 passed into the mixture during this period. A
total of 411 grams of chlorine (5.8 mols) was
absorbed. The mixture was then permitted to
stand for a short period of time, whereupon
stratification occurred. The upper layer, which
reactants.
‘
.
The reaction may be carried out at atmos 25 was a deep yellow oil, was separated from the
lower aqueous layer and washed twice with cold
pheric, subatmospheric, or superatmospheric
water to remove any unreacted chlorine and
pressures. Excellent results are obtained by
be; packed with any suitable material, or which
may be provided with baffles, bubble trays, or
other devices to insure thorough mixing of the
conducting the reaction at atmospheric pressure.
Other desirable methods for the preparation
tertiary butyl alcohol. The oily layer was then
,_ dried over anhydrous sodium sulfate and dis
of indene-type haloeste'rs'include the reaction of‘ 30 tilled at atmospheric pressure. A total of 510
grams of tertiary butyl hypochlorite, with a boil
the desired indene-type hydrocarbon with cer
ing point of 78° C., was obtained. The product
tain compounds capable of generating hypohal
' ous acid in situ.
was a pale yellow, mobile liquid with a charac
Examples of such compounds
teristic pungent odor.
are tertiary butyl hypochlorite and monochlor
ourea.
'
Tertiary butyl hypochlorite ,
CH:
\
/
CH:—COC1
CH3
reacts with indene-type hydrocarbons in the.
presence of an organic acid to form the corre
35
A mixture of 486.5 grams of an 86.5% indene
fraction obtained by the fractionation of light
oil from oil gas, and containing 3.62 mols of
indene and 239 grams (3.98 mols) of glacial acet
ic acid was added to a three-neck ?ask provided
40 with a re?ux condenser and an agitator. To this
mixture was added 392 grams (3.62 mols) of ter~
tiary butyl hypochlorite with good agitation dur
ing the course of 2 hours at a temperature of
sponding haloester. A by-product of the reac
20-25° C. The mixture then was agitated for
tion is tertiary butyl alcohol, which may be sep--'
an additional period of 3 hours and permitted
45
arated from the reaction product by suitable
to stand overnight.
means, such as by fractional distillation, and re
used in the process. Tertiary butyl alcohol may
therefore be regarded as a carrier for hypo
cht‘orous acid in the reaction. 'The cycle of op
erations may be represented as follows:
The reaction of hypochlorous acid with ter
tiary butyl alcohol to form tertiary butyl hypo
I
chlorite.
The product was extracted four times with cold
water, once with an aqueous sodium bicarbonate
solution. twice again with cold water, and dried
over calcium chloride. The product weighed
755.6 grams.
‘
Upon fractionation, a 60% yield .of indene
chloroacetate (otherwise identi?ed as chloric
indanyl acetate), based upon the indene pres
CH3
CH3
\
/
\
/
CH=—COH + 11001 -—>
orig-cool + m0
CH:
cm
'
~ ent in the light oil fraction employed, was ob
tained. The product, which possessed a pleas
ant ‘ester-like odor, had the following physical
properties.
2. The reaction of tertiary butyl hypochlorite
with an indene type hydrocarbon in the presence 60 Boiling range=118-128° C.‘ @ 5-6 mm.
Density (d20/4)=1.l7-1.l9
of a dilute organic acid to form the desired halo
Refractive index (nZO/D) =l.533-1.536
ester.
The saponi?cation equivalent of the product
was found to be 101, 105. which agrees well with
F the theoretical value of 105.3.
Upon hydrolyzing a portion of the product with
The use of tertiary butyl hypochlorite for the
preparation of indene-type haloesters permits
1‘ the use of solutions of hypochlorous acid of any
desired concentration, as tertiary butyl hypo
dilute HCl indene chlorohydrine having a melt
ing point of 124.5” C. was obtained. which agrees
well with the melting point of Z-chloro-l-hydroxy
hydrindcne (126° C.).
By re?uxing a second portion of the product
with potassium acetate in glacial acetic acid, in
dene glycol diacetate was obtained.
Upon re
?uxing this product with 30% KOH. trans indene
glycol having a melting point of 156.5° C. was
2,407,689
8
obtained. This agrees well with the value reported in the literature (159° 0.).
desired haloester may be readily obtained. It '
has been found that the organic acids used in the
process, such as acetic acid, are satisfactory cata-_
lysts for this purpose, as they are soluble in all
proportions in the reaction medium. In addi
Example 2
Indene was diluted with an equal volume of
carbon tetrachloride, cooled to —10° C., and
tion, certain other acidic substances, such as urea
chlorine passed in until the calculated amount
hydrochloride, have also been found to be effec
had been adsorbed. The product then was treated
tive catalysts. The use of urea hydrochloride as
with an equal volume of water and the calculated
a catalyst is particularly desirable, as it is ob
amount of calcium carbonate. The mixture was 10 tained as a by-product during the preparation of
heated until all of the carbon tetrachloride had
monochlorourea.
been removed, after which it was re?uxed for 15
It has been found that the use of urea hydro
hours. A small amount of acetic acid was added
chloride as a catalyst in concentrations greater
to remove traces of unreacted calcium carbonate
than 10% is undesirable, as the hydrogen chlo
and the solution permitted to cool. Water was 15 ride liberated reacts with the hypochlorous acid, ‘
removed by decantation and the product washed
twice with hot water. The indene chlorohydrine
obtained was dried, treated with the calculated
amount of acetic anhydride, re?uxed for 2 hours,
and distilled. A 70% yield of indene chloroace 20
tate boiling @ 130-145° C. @ 10 mm., absolute,
was obtained.
The product solidi?ed to a whit
solid melting at 25-45° C.
liberated by the monochlorourea present, to form
nascent chlorine. The chlorine so generated re
acts with a portion of the indene‘type hydrocar- '
bon present to form the corresponding‘ dichloride; 7
thus contaminating the product.
\
By the use of monochlorourea for the prepara»
tion of indene-type haloesters, solutions of hypo?’
'
chlorous acid of any desired concentration may
Example 3
be obtained, as monochlorourea is solublein all
proportions in the said hydrocarbons. The proc
Indene dichloride was heated with a mixture 25 ess also has the advantage that the reaction be
of acetic acid and potassium acetate.
A 50%
yield of indene chloroacetate was obtained.
Monochlorourea
NHOl
06
tween hypochlorous acid and the desired indene- '
type hydrocarbon can be carried out in a homo
geneous solution, as the hypochlorous acid is gen
30 erated at the same rate at which it reacts with the
hydrocarbon.
Indene-type haloesters are, in general, practi
cally colorless solids or ?uids possessing very
also reacts with indene-type hydrocarbons in the
pleasant odors.
presence of an organic acid to form the corre 35
As pointed out previously, these haloesters are
sponding haloester. A by-product of the reac
excellent plasticizers for resinous and plastic ma
tion is urea, which may be separated from the
terials, including (1) cellulosic derivative plas
reaction product and re-used in the process.
tics, such as cellulose esters and ethers, for ex
This cycle of operations may be represented by
ample, cellulose acetate, cellulose nitrate, ethyl
the following series of equations.
40 cellulose, benzyl cellulose, cellulose acetopropion
1. The reaction of chlorine with urea to form
ate, cellulose acetobutyrate, and the like; (2)
monochlorourea.
vinyl plastics, such as plastics derived from vinyl
45
In order to obtain a product free from urea hy
drochloride. the reaction may be carried out in
the presence of certain materials which are capa
ble of reacttn'g with the hydrogen chloride liber
ated during the course of the reaction, such as
calcium carbonate. This process is illustrated by
the following equations
NH:
NHOI
ymers, such as polystyrene, polymethyl styrene,,_
polystyreneepolymethyl styrene copolymers, am’,
and the like, methacrylic nitrile, and similar com?
2HCl + 01100; __. each + 1310 + co,
ganic acid to form the corresponding haloester.
NHCl
NH2
+ 1120 —4 C6
NH2
'ple vinylidene chloride, vinylidene acetate, and
50 the like ;' (4) styrene and substituted styrene p015
ample methyl methacrylate, ethyl methacrylate,
NH:
2. The reaction of monochlorourea with an in
dene-type hydrocarbon in the presence of an or
C0
plastics; (3) vinylidene plastics, such as polymer
ized vinylidene esters and derivatives, for exam
the like; (5) methacrylic plastics, such as poly
mers derived from methacrylic acid, esters
55 and/or derivatives of methacrylic acid, for ex
-__, too
NH:
esters, for example, vinyl chloride, vinyl acetate,
vinyl chloride-vinyl acetate mixtures, vinyl chlo
roacetate, vinyl propionate, and the like, and
polyvinyl acetal, polyvinyl butyral, and similar
+ HOCl
pounds; (6) acrylic plastics, such as polymers de
rived from acrylic acid and/or esters or deriva
60 tives thereof, for example, methyl acrylate, ethyl
acrylate, acrylic nitrile, and similar materials;
(7) hydrocarbon resins such as isobutylene poly
mers, (8) miscellaneous plastics, such as poly
vinyl alcohol, alkyd resins, ester gum, rosin ester,
65 polyamid~polybasic acid plastic masses, and the
NHz
like; and (9) natural resins, such as rosin, copal,
—_
O]
H —1-- H001 + RCOOH ———+
'
+ H2O
OOCR
kauri, dammar, pcntianak, and elemi.
Copolymers prepared by the copolymerization
of two or more of the monomeric compounds list~ .
70 ed or indicated in the preceding paragraph also
The reaction between monochlorourea and an
- indene-type hydrocarbon proceeds even in the
absence of a catalyst.
In the presence of a cata
lyst, however, the reaction proceeds to comple
may be plasticized by haloesters of the type dis
closed herein.
The properties of haloesters of indene-type hy
drocarbons, and particularly chloroesters, which
tion at a satisfactory rate, and good yields of the 75 render them particularly desirable for use as
2,407,689
9
10
plasticizing agents for resinous and plastic ma
terials are (1) their unusually good solubility
pounds, and such compound or mixture of com
pounds may be polymerized to any desired extent
characteristics, rendering them compatible with
short of complete polymerization prior to casting.
Plasticizing agents of the type described herein
a wide variety of resins and plastics, (2) their
chemically inert nature, due to the unusually sta 5 may be incorporated after polymerization or con
ble nature of the chlorine atom present, resulting
version to the resinous state, if desired.
,
The use of haloesters of indene-ty’pe hydro
in the production of very stable compositions,
carbons plasticizing agents is illustrated by the
(3) their relatively high boiling point or ranges,
following examples.
retarding or preventing blushing, bleeding,
blooming, and the like, and insuring against pre
mature embrittlement due to loss of solvent, (4)
their colorless and color-stable properties, en
abling permanent light colored or colorless com
positions to be formed at will, (5) 'the ease with
which they may be incorporated in plastic com-'
positions, and (6) their low viscosity character
istics.
Example 4
A nitrocellulose lacquer having the following com
position is prepared.
‘
I5
’
Parts
Ester sum
5
~Indene chloroacetate__ ___________ _'_ _____ -_
5
One half-second nitrocellulose___________ __
10
Any desired quantityof haloesters of the type
.
Thinner
'
'
40
disclosed herein may be incorporated in such res
inous or plastic compositions, or mixtures there
of, due care being taken not to exceed the com 20 The thinner used may have the following com
position:
.
patibility limit of the desired haloesters if a clear
plastic and/or coating composition or ?lm is de
>
Parts
sired.
In certain cases in which a translucent
Pentacetate
and/or opaque eifect is desired, the compatibility
limit of the haloester in the plastic, or mixture of
_
20
25 Tertiary amyl alcohol"; _________________ __
Isopropyl acetate
‘
Absolute ethyl alcohol ___________________ __
_
-
10
13
3
plastics, may beexceeded with this end in view.
For most purposes, I ?nd that 50%, or less, of
Toluene
34.
a haloester of the type described herein is
Troluol
20
suiiicient to impart the desired degree of
lacquer is clear and light amber in color.
plasticity to the resin and/or plastic, although 30 A The
portion of it, when ?owed on the surface of a
this quantity may be exceeded in certain cases.
tin panel and permitted .to dry for a period of 48
Excellent results may be secured in many cases
hours, will give a coating ?lm possessing good
in which 30%, or even less, of the plasticizing
35 properties.
agent is employed.
Example 5
Haloesters .of the type described herein also
may be used in conjunction with other plasticizing
An ethyl cellulose lacquer is prepared accord
agents, such as esters of phthalic acid, tetrahy
ing to the following formula.
drophthalic acid, 3-methy1-A4-tetrahydrophthalic
acid, 4~rnethyl-A4-tetrahydrophthalic acid, 3,6
40
endomethylene-A4-tetrahydrophthalic acid, ma
leic acid, and the like; esters of sebacic acid such
as dicapryldsebacate; esters of abietic acid, and
'
Ethyl cellulose
, rosin acid, as Well as hydrogenated esters there~
Parts
'
,
___
10
Indene chloroacetate ________ __; _________ __
5
Ester gum
5
'
i
_
Thinner
80
“of; phosphoric acid esters, such as tricresyl phos 45
phate; chlorinated diphenyls; and the like, in‘
The thinner use may have the following com
position:
plasticizing resinous and/or plastic materials. In
all such cases, I prefer to employ plasticizing
“in.
Parts
15
compositions in‘ which haloesters ofthe type de-_ 50 Isoproyl acetate
scribed herein are the preponderating constitu—
Absolute ethyl alcohol; ________________ __
ent, or constituents, present.
-
,
,
Other ingredients, including solvents, ?llers,
pigments, dyes, driers, and the like also may be
incorporated in resin-plasticizer compositions of
the type described, if desired.
Resin and/or plastic compositions of the type
described may be used for many purposes. such
' as the preparation of molding powders for ex
Amyl acetate
-
' Tertiary amyl alcohol .... __- _____ -s______ __
Toluene
55 Troluol
____
‘-
3
18
.
10
40
_l ..
14
The lacquer is clear and has a, very light amber
When brushed on the surface.‘ of a tin
panel and permitted to dry for a period of 48
color.
truding rods, tubes, sheets, ?lms, and the like;
hours, a clear, adherent coating ?lm is obtained.
for the preparation of coating and/or impregé 60 Indene type haloesters are particularly well
nating compositions; for the preparation of aque
adapted for use as addition agents for soap and
ous emulsions; and the like.
similar detergent materials. When added to
Plasticizing agents of the type described here
soap or similar products, such as synthetic deter
in may be incorporated in monomeric resin-form
gents and the like, they serve not only to impart
ing materials prior to, or during, their polymer
desirable odors thereto, but also assist in sealing
ization or conversion to the resinous state, as they
the pores of such materials to prevent eiliores
are completely inert in nature and do not a?eot
the polymerization in any way. This is of very
cence and deterioration.
A preferred embodiment of this invention is~
considerable practical importance as it permits _ the use of haloesters of the type described in con
the formulation of plasticized casting composi ‘0 junction with one or more compounds selected
from a group including phenyl ethyl alcohol,
tions, and/ or insures a uniform distribution of the
plasticizing agent throughout the resulting
esters of phenyl ethyl alcohol, methyl phenyl car
plastic.
Casting compositions may, of course, contain
one or more monomeric polymerizable com
binol, esters of methyl phenyl carbinol, alkyl
_ phenyl ethyl alcohols, and esters of alkyl phenyl
7” ethyl alcohols.
2,407,689
11
12
The addition of one or more haloesters of the
equal to, or greater than, the quantity of rubber,
or rubber mixture, employed in the composition,
type described‘to bar soap and other soap and/0r
synthetic detergent products as an odorant and/or
may be used.
sealing agent is particularly advantageous due to
I prefer to use from 2% to 30%, by weight, and
more particularly from 4% to 10%, by weight,
the unusually stable nature of these materials.
They may be incorporated in soap in any desired
manner and any desired proportion may be em
ployed. Quantities in the range of 0.05% to 5%
by weight may be regarded as typical.
Thus, for example, a mixture of 98 parts by
weight of dried weighed soap chips and 2 parts.
by weight of indene chloroacetate may be thor
oughly mixed and fed into a milling machine.
The milled soap then may be plodded, stamped,
molded, and/or otherwise processed. The bar 15
‘soap thus obtained will be found to possess a very
3f such haloester, based on the weight of the rub
er.
.
In addition to haloesters of the type described
herein, other ingredients which may be incorpo
rated in natural rubber and/or synthetic rub
ber compositions include vulcanizing agents
and/or accelerators, such as, for example, sulfur
or sulfur~containing compounds such as tetra
methylthiuram disul?de, mercaptoarylenethia
zoles, such as mercaptobenzothiazole, benzothia
zyl disul?de, litharge, and dithio carbamates;
pigments, such as, for example, magnesium oxide,
zinc oxide, and lead oxide; antioxidants, such as,
for example, phenyl-alpha-naphthylamine (Neo
zone A), and phenyl-beta-naphthylaminev (Neo
zwone D); reinforcing pigments, such as, for ex-'
advantage in other types of soap, such as, for ex
ample, carbon blacks, such as channel black, clay,
ample, ?ake, chip; powder, or bead forms. ' In
and blanc ?xe; ?llers and/or diluents, such as,
addition, they may be incorporated in synthetic
for example, lithopone,-barytes, whiting, and as
detergents, such as sodium lauryl sulfonate and
25 bestine; other softeners and plasticizing agents
alkvl benzene sulfonate sodium salt.
such as, for example, paraffin wax, factice, di
The soaps and synthetic detergents to which
agreeable odor and to be quite resistant to ef
?orescence.
In addition to their use in bar soap, haloesters
of the type described also may be employed to 20
this invention relates may be classi?ed conven
butylphthalate, tricresyl phosphate, pine oil, oils,
iently under the generic term “detergents.” Gen
erally. speaking, detergent compounds contain
inous materials.
more than 15 carbon atoms.
Thus, soaps used 30
fatty acids, and synthetic or natural resins or res
>
A preferred embodiment of the invention is the
as detergents are, generally speaking, alkali metal
‘salts of fatty acids containing more than 15
use of haloesters 0f the type described in con
herein may be compounded are the various grades
and types of natural rubber and rubber-like ma
terials, and synthetic rubbers or elastomers, such
as, for example, those obtained by the polymeri
tening agents for natural and/or synthetic rub
thereof, such as butadiene, isoprene, piperylene,
2-chlorobutadiene, and the like, either alone, or
rials as a softener for natural, and/or synthetic
rubber compositions. A preferred resin for in
corporating with the haloester is the resin ob
junction with resins, such as those derived by the
polymerization of light oil and/or coal tar frac
carbon atoms, examples of which are'the sodium
tions containing cumarone and/or indene or the
and potassium salts of palmitic, oleic, and stearic
35 resins derived by the polymerization of the high- _
acids.
boiling monomeric material derived from tar by
Haloesters of indene-type hydrocarbons also
?ash distillation and/or solvent extraction proc
are excellent plasticizing agents for natural, and
esses, and/or other organic liquids, such as the
particularly for synthetic, rubber or elastomers.
high boiling‘ aromatic oils derived by the ?ash dis
Examples of the rubber or rubber-likemate
rials with which haloesters of the type described 40 tillation and/or solvent extraction of tar, as sof
ber.
'
Another preferred embodiment of this inven
tion is the use of haloesters of the type described
zation of one or more dioleflnes, Or substituents 45 in combination with one or more resinous mate
in admixture, or in combination with one or
more unsaturated and/or reactive compounds or
tained by ‘the polymerization, by thermal and/or
materials such as ole?nes, unsaturated nitrlles, 50 catalytiomethods, of certain high boiling mono
meric material separated in monomeric form
acids, esters, ethers, ketones, aldehydes, and/or
from tar formed during the production of com
substituents thereof. such as for example, styrene,
bustible gas by processes involving the pyrolytic
acrylic nitrile, isobutylene, acrylic esters, and the
decomposition of petroleum oil with or without
like. Important examples of synthetic rubbers
or elastorners are those obtained by the copoly 55 the aid of catalysts. As pointed out previously, 5
such resins may be formed in situ. in aromatic
merization of one'or more diole?nes with (1)
oils of similar type.
acrylic nitriles (2) styrene or substituents there
Another desired resin which may be incorpo- '
of, and/or- (3) isobutylene or similar ole?nes.
rated in the haloesters as softeners for natural
These materials are known in the art under dif
ferent trade names, such as, for example, buna, 60 and/or synthetic rubber is the resin derived by
the polymerization of petroleum and/or coal tar
Buna S, Buna N, Perbunan, chloroprene, neo
fractions containing indene and/or cumarone.
prene, Ameripol, Hycar, butyl rubber, and the
Other desirable ingredients which may be
like.
'.
.
blended with a haloester of the type described‘
Synthetic rubbers of the type obtained by the
reaction of dihalides with organic or inorganic 65 either alone or in combination with one or more
resinous >materials, as a softener for natural.
sul?des or polysul?des also are included, such as,
and/or synthetic rubber include the dimers of
for example, the material prepared by the reac
petroleum or coal tar fractions containing indene
and/or cumarone, dibutyl phthalate, tricresyl
flde and sold under the trade name, Thiokol.
‘The quantity of haloester of the type described 70 phosphate, and pine oil.
Reclaimed rubber is also included among the
herein which may be incorporated in natural or ’
materials which may be plasticized with the halo
synthetic rubbers, or elastomers, may be varied
esters herein described, together with natural
over very wide limits, depending upon the prop
> tion of ethylene dichloride with sodium tetrasul~
erties desired.
Thus, for example, quantities
‘and/or synthetic rubber, and with or without
varying from a few percent, or less, to an amount 75 other ingredients.
u
2,407,689
id
14
The haloesters and other ingredients, may be
mixed or compounded with the natural rubber
Example 11
Component:
and/or synthetic rubber on mixing or compound- .
- by any other method known in the art.
Indene chloroacetate _____________ __
The
rubber composition then may be vulcanized, if 5
Examples of rubber compositions containing
1O
follows.
Example 6
10
Zinc oxide ______________________ __
5
Sulfur
__________________________ __
2.5
Mercaptobenzothiazole ___________ __
0.8
Sulfur __________________________ __
Mercaptobenzothiazole ________ ______
1.25
1.25
Zinc oxide ______________________ __
5
Phenyl-a-naphthylamine _________ __
1
15 Component:
.
terial boiling above 210° C. and iso
Parts by weight
lated from petroleum tar ________ -_
3
Carbon black ________ _-_ __________ __
30
Sulfur
2.5
25
5
Indene chloroacetate _____________ __
5
Mercaptobenzothiazole ___________ __
0.6
Stearic acid ______________________ __
2
Component:
1.5
15
2
Parts by weight
Butadiene-isobutylene
30
rubber _____ __ 100
Indene chloroacetate _____________ __
terial boiling above‘ 210° C. and
isolated from petroleum tar _____ __
A natural rubber tire tread mix may be com‘
pounded as follows:
35
Sulfur
Parts by weight
Smoked sheet rubber _____________ _- 100
Channel black ___________________ __
Zinc oxide _______________________ __
Indene chloroacetate _____________ __
40
6
2
2
3
Stearic acid ______________ -s _____ __
2
Mercaptobenzothiazole
0.7
_________ -l___
Example 9
A synthetic rubber tire tread mix may be com
pounded as follows:
45
,
50
1.25 ‘
1.25
Phenyl-a-naphthyiamine _________ __
1
Zinc oxide _______________________ __
20
Example 14
Perbunan
Parts by weight
__________ __'__-___- ______ -_
100
Zinc oxide _______________________ __
5
Benzothiazyl disul?de ____________ __
1.5,
Sulfur __________________________ __
1.5
Phenyl-e-naphthylamine _________ __
1
Channel black __________________ __._
Stearic acid _____________________ __
Indene chloroacetate _____________ ..
50
1
50
The foregoing compositions may be sheeted out,
shaped and vulcanized, if desired, such as by the
application of a temperature of, say, 140° C. in a
press for a period of, say, 45 minutes. Other
procedures may, of course, be used if desired.
Parts by weight
100
___________________________ __
5
15
Mercaptobenzothiazole ____________ ._
40 Component:
terial boiling above 210° C. and iso
__________________________ __
black ____________________ __
_
Resin obtained from monomeric ma
lated from petroleum tar ________ __
5
Resin obtained from monomeric ma.
Carbon
Neoprene _- _______________________ -_
1.5
Example 13
lated from petroleum tar ________ __
Component:
____________ __
Zinc oxide ________________________ .Phenyl-u-naphthylamine __________ ._
Example 8
‘
__________________________ __
Mercaptobenzothiazole
Resin obtained ‘from monomeric ma
terial boiling above 210° C. and iso
Sulfur
2
Resin obtained from monomeric ma
Pale crepe rubber _________________ __ 100
Zinc oxide ______________________ __
45
Component:
Parts by weight
Indene chloroacetate _____________ __
20
__________________________ __
‘
Butadiene-acrylic nitrile rubber_____ 100
Example 7
Sulfur
3
40
Example 12
Natural rubber __________________ __ 100
Component:
lated from petroleum tar ______ ___
Carbon black ____________________ __
Parts by weight
Indene chloroacetate _____________ __
3
terial boiling above 210° C. and iso
desired, by any of the methods employed for this
haloesters of the type described herein are as
‘
Resin obtained from monomeric ma
purpose in the art.
Component:
Parts by weight
Butadiene-styrene rubber ________ __ 100
ing rolls or mills, or they may be compounded
55
Rubber haloester compositions of the type de
4
scribed, either as such‘i or with the incorporation
of other ingredients such as the resin and/or
aromatic derived from monomeric material boil
ing above 210° C. and isolated from petroleum
Phenyl-a-naphthylamine _________ __
2
‘ 60 tar, may be used for a variety of purposes, such
Sulfur
1.25
Zinc oxide
____ _? ________________ __
5
Mercaptobenzothiazole ___________ __
1.25
Channel black _____, ______________ __
Indene chloroacetate _____________ __
__________________________ __
‘l5
.
Example 10
Component:
Parts by weight
Buna S _________________________ _-
80
Plantation crepe ____ "a __________ __
20
Zinc oxide ______________________ __
5
Channel black ___________________ __
50
as for the manufacture of tires, tubes, and other
objects, and as adhesives, coating, impregnating,
and waterproo?ng agents. Such compositions
may or may not be vulcanized prior to, during, or
subsequent to the use thereof.
To summarize, the invention may be said to re
side more completely in the preparation of halo- 7
Age Rite Resin D __________________ -_
2
esters of indene type hydrocarbonsand in the
utilization of such products as plasticizing agents
for natural and/or synthetic resins, plastics,
Pine tar _________________________ __
4
rubbers, elastomers, and/or elastics.
Indene chloroacetate _____________ __
Stearic acid _____________________ __
3
2
follows:
Sulfur
1.5
Altax
__________________________ __
_
_
_____
2
Rubber has been de?ned‘in the prior art as
Y
A. “.An organic material which shows a high
75 elasticity of '100 percent or more at room tem
2,407,689
15
16
perature and which does not lose this property I
upon storage at room temperature for consider
able periods.”
_
>
claims‘ without departing from'the spirit of the
. invention.
I claim:
'
B. “A, rubber is a substance which shows an
1. A plasticized composition comprising a plas-_
elasticity of 800% or more with_a quick return
( snap) at temperatures at which natural rubber
shows the same effect and-which does not lose
this property upon storage any sooner than does
ticizable organic substance and as a plasticizer
natural rubber.”
"
_
therefor a carboxylic acid ester of a compound
selected from the group consisting of indene
halohydrines and alkyl indene ,halohydrines.
2." A plasticized composition comprising a plas
C. "In order to qualify as a rubber, a material 10 ticizable organic substance and as a plasticizer
therefor .a fatty acid ester of an alkyl indene
should stretch readily to a considerable degree
and after release retract forcefully arid quickly.”
3. A plasticized composition comprising a plas
I prefer the following de?nition.
ticizable organic substance and as a plasticizer
"The term rubber is intended to embrace elas
tomers, whether natural or synthetic, and 15 therefor a fatty acid ester of an indene halo-'
hydrine.
whether or not admixed with- other ingredients
halohydrine.
.
.
-
‘
4. A plasticized composition comprising a plas-?,
such as pigments, softening agents, etc. in the
ticizable' organic‘ substance and .as a plasticizer“,
vulcanized or unvulcanized state, the said elas
therefor a fatty acid-ester of a methyl indene;I
tomer being (1) capable of vulcanization such as
'
if i;
by the application of heat when in admixture 20 halohydrine.
5. A'plasticized composition comprising a. plas
with sulfur or other vulcanizing agent, or other
ticizable organic substance and as a plasticizer
wise, (2) slightly soluble or substantially insolu
therefor chloro-indanyl acetate.
ble in bodied drying oils such as bodied linseed
6. As a new composition of matter, a cellulose
oil, and (3) capable, either in the unvulcanized
state or at some stage in the vulcanization there 25 ester plasticized by means of a fatty acid ester of
indene chlorohydrine.
.
of, of being stretched readily to a considerable
'7. As a, new composition of matter, a cellulose
degree and, after release of the applied stress,
ether plasticized by means of a fatty acid ester Of
retracting forcefully and quickly.”
indene chlorohydrine.
.
While I have more particularly described the
8. As a new composition of matter, ethyl cellu
use of indene chloroacetate by way of example 30
lose plasticized by means of a fatty acid ester of
in illustrating my invention as pertaining to the
preparation of indene-type haloesters generally,
it will be appreciated that the corresponding
halopropionate, halobutyrate, halovalerate, etc.,
indene chlorohydrine.
,
9. As a new composition, of matter, cellulose
acetate plasticized by means of a fatty acid ester
of indene type hydrocarbons may likewise be 35 of indene chlorohydrine.
used for this purpose with equally good results.
10. As a new composition'of matter, nitrocel
lulose plasticized by means of a fatty acid ester >
It will be further understood that‘ the fore
of indene chlorohydrine.
.
going is by way of illustration and that changes,
'
FRANK J. SODAY.
omissions, additions, substitutions, and/or modi
?cations might be made within the scope of the 40
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