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Патент USA US2120054

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Patented June 7, 1.938 I
- i
Ralph M. Freydberg, New York, N. Y., assignor'
to Acme Backing Corporation, Brooklyn, N. Y.,
a corporation of New York
' No Drawing. Application March 17, 1937,
Serial No. 131,411
3 Claims. (Cl. 106-22)
This invention relates‘ to adhesives and more
especially to laminated fabrics intersecured by
thermoplastic adhesives.
In general, it is an object of the invention to
5 provide a device of the-character described which
will e?lciently perform the purposes for which it
The adhesive may be applied as a stiifener to a '
single layer of fabricor as an adhesive and stif
fener between two layers, or it may be impreg- 5
nated into one layer and used as an interlining
is intended, which is simple and economical of
between Other layers to be joined to Such other
construction, which can be expeditiously, con-
layers under the action of heat and pressure. The
veniently and safely manipulated, and which can
10 be readily manufactured.
' Another object of the invention is to provide an
washed; which is somewhat and desirably affect-
11 ed, temporarily, by temperatures which clothes
attain during ironing; which gives such a perma-
nent ?exible stillness to clothes that starchdoes
not need to'be used during washing; which is not
undesirably affected by the usual dry cleaning
25 ?uids or procedures; which is adapted to impregmate fabrics without discolormg them; and which,
if desired, may be given a color.
adhesive and product described herein withstands
successive laundering, dry cleaning, and ironing 10
adhesive which may be used in laminating and
coating fabrics and to give a ?exible permanent
stillness to interlinings, fabrics and backings;
15 which is not affected by moisture, normal temperatures, nor especially by the exposure to light;
which ‘is but slightly and desirably affected by
temperatures at which clothes are usually
The fabrics used should be such that the ad
hesive may be impregnated between and/or into
the ?bers of the fabric. In the case of an inter
lining,‘ the cloth used'may be heavy or light, de- 16
pending upon the type of 910th With which the
interlining is to be used. Cotton sheeting may
be laminated with the adhesive about to be de
The thermoplastic composition herein described 20
is a derivative or a mixture of derivatives of
acrylic acid- These derivatives may be D013’
merized. The derivatives of methacrylic acid
have been found to be particularly Suitable espe
cially when they. are polymerized. e- a. methyl
methacrylate. A preferred formula is as follows :_ 25
Other objects of the invention will in part be
obvious and will in part appear hereinafter.
not discolor when exposed to ordinary heat and/or
light or the light of the sun.
. '
Parts by weight
polymerized derivative of methacrylic
The invention accordingly comprises a product
acid _____________________ _'_ _____ __
possessing the features, properties and the rela-
Dibutyl phthalate (or other plasticizer)
tion of componentsfwhich will be exempli?ed in
Chlorinated rubber _______ _1_ ________ __ 10 to 40
> of the application of whlchlwm be indicated xi):
‘ The polymerized derivative of methacrylic acid
the product hereinafter described and the see
_} 35 the claims_
For a fuller underétanding of the nature and
ob-ects of the invention, f r
to Jthe following detailed tigsgr??ggnf ould be had
Attempts have been made heretofore to sti?’en
40 single layers of fabric and to laminate a plurality
- layers by the use of thermoplastic ad- >
of fabric
100 30
which is sold under the trade name of “Lucite” 35
has been found to be entirely satisfactory. The
proportions listed above may be varied within
rather wide limits, e. g. chlorinated rubber may
be but one part by weight‘
The ab°ve ingredients would be mixed by sub‘ '40 v
' tlon to heat and stirring ’ that is, in a heated
hesives. Various adhesives have been usedhav-
mixer which would produce 8‘ paste-like com
mg various properties and for various purposes,
position, applied hot to the fabric by, calender
45 depending upon the kind of. final product desired.
These stiffened and la nated fabrics have not
t_ 1
een en Ire 3’ satisfactory‘ For example’ there
has been one great drawback in that when they
have been exposed to ‘heat and/or to light’ they‘
50 have, after a time, becomediscolored- It iS-Obvious that fabrics which discolor cannot be used _
for Certain DIII‘DOSeS- Thl1$,the_y have been most \
unsuitable'for white collars, cuffs, .and shirt
fronts. The present invention provides an ad' v . hesive and a ?nal laminated'product with does
The dibutyl phthaate acts as a plast cizer and 45
the chlorinated rubber as a negative catalyst.
Other known plasticizers may be substituted“ in
whole or in part for the dibutyl phtha1ate_
Compositions 'made in accordance with’ the.
above formulae and embodying the essential fea- 50
tures theregf begin to soften at Substantially 130°
and ?rmly unite layers of fabric when sub
jected to a-temperature of about 300° F. and
pressure. They are insoluble in straight chain
hydrocarbons, alcohols, ethers, naphtha, gasoline, 55
benzine, or boiling water. They are soluble in
- aromatic hydrocarbons with small amounts of al
cohols and in lower ketone and ester solvents.
It will be understood that when the composi
tion is used on a_lining'or backing fabric, as
speci?ed, it ?rmly unites said lining or backing
to other fabrics, when the same are subjected
to pressure and heat at a temperature of about
300° R, which is about the usual temperature
The lining or backing is
dry when subjected to the heat and pressure,
and the composition is softened and made tacky
10 of laundering irons.
by the heat so that it adheres to the other
It is to be understood that it is not essential
to the use of the composition that it can be ap
plied to a lining or backing fabric, as it can be
interposed directly between two or more layers
of fabric to unite them and form a substantially
unitary laminated fabric possessing the charac
teristics above mentioned.
dering process, without, however, causing the
layers of fabric to become actually detached
one from the other. This permits the laundering
?uids to pass through the articles made from
the laminated fabric during a washing or dry
cleaning process, thoroughly to cleanse the arti
cles, and then, as above pointed out, when the
articles are subjected .to heat and pressure dur
ing an ironing operation, the bond is again tight
ly formed, restoring the fabric to its original 10
appearance and characteristics.
Laminated fabrics adhesively secured by the
above adhesive may be washed and dry-cleaned
as many times as desired. They may be exposed
to heat and/or to sunlight for an inde?nite pe 15
riod without changing their color. They are
?exibly stiff and most suitable for collars, cuffs,
shirt bosoms, and the like. If the fabric .is origi
nally made without creases or wrinkles, it will
'not'show creases or wrinkles even after many 20
A laminated fabric embodying the said com
position and united thereby may be laundered
' and dry-cleaned without separation of the lay
ers. The composition softens at the usual tem
perature of laundering ?uids or at the boiling
point of water, but retains its adhesive quali
ties and maintains the layers united. The water
‘or washing ?uids may pass through the lami
‘nated fabric thoroughly to cleanse the same, but
when, the wet or damp fabrics are subjected to
heat and pressure, such as the action of an
iron, as soon as the moisture is expelled the
fabric regains its original appearance and char
acteristics above pointed out.
The compound may be colored by adding
the'reto mineral fillers or high strength organic
colors.’ Of course, the addition of such ?llers or
colors may vary the viscosity of the compound,
washings and ironings. Due to the normal stiff
ness of the laminated fabric, it is not necessary
to use starch in the washing thereof. ’
Since certain changes may be made in the
above product and different embodiments of the
invention could be made without departing from
the scope thereof, it is intended that all matter
contained in the above description shall be inter
preted as illustrative and not in a limiting sense.
It is also to be understood that the following 30
claims are intended to cover all of the generic
and specific features of the invention herein de
scribed, and all statements of the scope of the
invention which, as a matter of language, might
Having described my invention, what I claim I
as new and useful and desire to secure by Let
be said to fall therebetween.
ters Patent is:
l. A thermoplastic adhesive for use in uniting
but they do not affect its permanent qualities.
Fabrics bonded together with the above adhe
fabrics comprising 100 parts of a polymerized de
rivative of methacrylic acid, 10 parts dibutyl
sive hold ‘their bonded condition at any tem
2. A thermoplastic adhesive for use in uniting
fabrics and having a melting point above 300°
F. comprising 100 parts of a polymerized deriva 45
perature normally possible in a laundering proc
ess, but at normal ironing temperatures the bond
45 is softened somewhat and in sufficient amount
for the laminated fabric to obtain the benefit
of the ironing.
By coating and/or impregnating a cloth of ‘
such character as to present a mesh readily ca
50 'pable of impregnation to permit the compound
-to ?ow into the interstices, the adhesive me-.
phthalate, and 1 part chlorinated rubber.
tive of methacrylic acid,, 10 parts dibutyl'
phathalate, and 1 part chlorinated rubber;
3. A medium for forming laminated fabrics,‘
comprising a sheet of material impregnated with
a thermoplastic adhesive which maintains its 50
adhesive qualities at temperatures below 212° F.,
dium or compound is so thoroughly embedded in comprising 100 parts of a polymerized derivative
the ?bers of the fabric and in the interstices of methacrylic acid, 10 parts dibutyl phthalate,
that it is possible for the bond between the and 1 part chlorinated rubber.
fabricsrto be slightly loosened during the laun
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