Патент USA US2407616код для вставки
liléelt’isll XFi etec'iteis I. auruncu‘?cpll- . t H?SEARCH ROOM. r 2,407,615 EQ'Q Q sea“. 10, I‘Wé. "SUBSTITUTE FOR MISSING >53- ' UNITED STATES PATENT OFFICE 2,407,615 FIRE-RESISTING COATING AND IIVLPREG ‘NATHVG COIVIPOSITIONS Cecil Frederic Moon, Cricklewood, London, and Norman Collinson-Jones, Hatch End, England No Drawing. Application October 9, 1944, Serial No. 557,928. In Great Britain September 29, 1943 10 Claims. (01. 106-84) 2 1 The following is an example of a standard This invention relates to an improved ?re mixture: resisting coating and impregnating composition and ?re-resisting materials obtained therewith. /' Sodium silicate, £40 Twd _________ _- 35% lbs. The main object of the invention is to provide a. ?re-resisting composition and ?re-resisting 5 Water ______ -1 __________________ __ 181/; lbs. material which will overcome the drawbacks en ' China clay ______________________ __ 58% lbs. countered with the various ?re-resisting composi tions and materials hitherto proposed, more par ticularly cracking and disintegration when sub Concentrated oil of vitriol _____ __ 2 lbs. 1 oz. Water ___ 8 lbs. jected to high temperatures, and especially when 10 _ water is applied to them at such temperatures. Acetic acid 80%‘ commercial ____ __ 1 lb. 4 oz. Water _______________________ __ 3 lbs. 2 oz. The ?re-resisting composition provided accord The method of mixing is as follows: ing to the present invention may be used, for in ' The sodium silicate and water are thoroughly stance, as an emulsion for impregnation pur beaten up at a temperature not exceeding ‘70° F. poses, as a paint providing a protective coating, 15 in a mixer operated at a speed of 300 to 400 revs. as a plaster to be applied direct to any surface, per minute, for about 10 minutes; the china clay or as a board to be used for covering and other is then introduced and thoroughly beaten in for purposes. " about 5 minutes; thereupon the cdncentrated The invention consists in producing the fir oil of vitriol and water are gradually introduced 4 resisting composition by the thorough admixture 20 at a temperature not exceeding 68° F. while the of sodium silicate (and Water), china clay and/or any of its equivalents as hereinafter referred to, concentrated oil of vitriol (and water), and acetic mixer is in motion for about 5 to 6 minutes, the mixing continuing until the mass ‘becomes thor . oughly mixed; ?nally the acetic acid and water acid (and water) the oil of vitriol acting as a are introduced at a temperature not exceeding ' setting agent and the acetic acid acting as a very 25 70° F. and subjected to the same thorough mix powerful suspension agent, which is most es sential. The invention also consists in the ingredients being used in the proportions and within the range of temperatures hereinafter more particu 30 larly referred to. ing. It is important that the vitriol be intro duced after the sodium silicate and the china clay and before the acetic acid so that it should chemically act on the sodium silicate and cause only slight coagulation, the acetic acid which is subsequently introduced acting to complete the coagulation whilst powerfully acting to keep the The invention further consists in the mixture being produced in the manner hereinafter more china clay in suspension. If the acetic acid were particularly described, and in its being used in introduced before the vitriol coagulation would the modes hereinafter referred to. 35 'be far too rapid and a subsequent addition of The ranges of the proportions in which the vitriol would be most ineffective in its action on various ingredients are used are as follows: the sodium silicate. Instead of, or in addition to, the china clay, Pounds one or more of the following substances may be Sodium silicate __________________ .. 28 to 40 '70 40 used: pure talc, talc and French chalk, kaolin, Concentrated oil of vitriol ________ __ 11/2 to 2V; Acetic acid ______________________ _- =34; to 11/2 asbestine, kalytes, Alusan, the latter two being China clay ______________________ __ 45 to forms of china clay obtainable under these names Great Britain. The temperature ranges of the ingredients ,, in The emulsi?ed mixture may be used for the when introduced into the emulsi?er are as'iol w. Cu impregnation of linen and other textile materials lows: to produce, for instance, ?re-resisting suits, °F. Sodium silicate ____________________ __ 65 to 70 gauntlets and other ?re-resisting wearing ap Concentrated oil of vitriol __________ -_ 58 to 68 parel; also covers of air ?lled dinghies, parachute Acetic acid 60 to '70 50 covers, etc. In the case of this application a w - I a a, -. g “~ ’ a I‘ . (2 5w ,1 d l a v r a 1' ‘ ‘ ~ 2,407,615 r. while at a temperature falling within the follow ing ranges: substantially reduced amount of china. clay ii’:v used. . ‘F. When used as a paint, such as for the protec Sodium silicate ____________________ _- 65 to '70 tion of timber in buildings, ships and aircraft, Concentrated oil of vitriol __________ -.. 58 to 68 roof timbers, wooden huts, in?ammable building Acetic acid 60 to 70 ~ the china, clay being‘ added at the surrounding bo'ard, ammunition boxes, and other in?ammable structures and articles subject to ?re danger, the application of two coatings will generally be suffi éient. temperature. '- .4. A ?re-resisting coating and impregnating In the use as a paint, the proportion of ' the china clay and/or its equivalent is increased by about 25%. ~ composition as claimed in claim 1, in which the .1 ingredients, including the water introduced with In order to produce a ?re-resisting plaster, the emulsi?ed mixture is added to a cellulose base, each one of them are used in the following spe for example, jute, hemp, sisal, bagasse, straw, etc., ci?c proportions: in the proportions of 1/3 emulsion to 2/3 cellulose base. The plaster can be applied direct, by ordi 7' Water Sodium silicate, 14(l'1‘wd _________ __ 35%, lbs. 18% lbs. nary plasterer’s technique, to any surface, e. g. ' wood, brick, metal and even glass, without any I deleterious effect to such surface. The material has strong adhesive properties and no additional China clay ______________________ __ 58% lbs. Concentrated oil of vitriol _____ .._ 2 lbs. 1 oz. ' Water .. support, e. g. expanded metal or wire netting is‘ , 8 lbs. ,.Acetic acid, 80% commercial___-_ 1 lb. 4 ozs. required for ordinary application. Water _______________________ __ 3 lbs. 2 oz. The main uses of such a plaster are: ‘for the‘ '' . 5. A process of manufacture of ?re-resisting treatment of walls, ceilings and floors, which, if required, may then be papered, distempered or 25 coating and impregnating composition as claimed in claim 1, in which the ingredients, including the painted with water paint; the lining of cold stor age rooms; the insulation of gas stoves, refrig- ' water introduced with each one of them are used erators, etc.; lagging of boilers, steam piping and . in the following speci?c proportions: the like; ?reproo?ng protection of all steel-work in buildings, power stations, gas-works, etc. The plaster is of light weight and holes can be 30, China clay ______________________ -_ 58% lbs. bored and nails and screws driven into it without damage; it can also be easily sawn. Its thick ness may vary from 1/2" to 2" according to re quirements. Sodium silicate, 140 _Twd _________ __ 351/4 lbs. Water .. 18%; lbs. Concentrated oil of vitriol _____ __ 2 lbs. 1 oz. »Water _ 35 In the case of ?re-resisting boards for covering and other purposes, they may be produced in a thickness of 1%" and, if necessary for special work, they may be laminated up to four thick _ 8 lbs. .Acetic acid, 80% commercial“--- 1 lb. 41oz. Water _______________________ _- 3 lbs. 2 oz. ‘ and in which the temperature of the admixing of sodium silicate and water does not exceed 70° nesses. If desired, the boards may be moulded. 40 F., that of the concentrated oil of vitriol and water does not exceed 68° F., and that of acetic In this form it can be used in sheets, portable acid and water does not exceed 70° F. shields and screens. I 6. A process of manufacture of ?re-resisting We claim: > coating and impregnating composition as claimed 1. A ?re-resisting coating and impregnating composition comprising a thorough mixture of 45 in claim 1, consisting in effecting admixture as sodium silicate (and water) ; a ?ller selected from 1 the group consisting of: china clay, pure talc, talc and French chalk, kaolin, asbestine, kalytes, ' Alusan; a setting agent consisting of concen trated oil of vitriol (and water), and a suspen sion agent consisting of acetic acid (and water). 2. A ?re-resisting coating and impregnating composition comprising a thorough mixture of , sodium silicate, a ?ller consisting of china clay,‘ a setting agent consisting of vitriol (and water), i and a suspension agent consisting of acetic acid and in which the various ingredients are used within the following ranges of proportions: Pounds Sodium silicate __________________ __ 28 China clay ______________________ .._ 45 to to follows: the sodium silicate and water are thor oughly beaten in a mixer for about 10 minutes; the china clay is then introduced and thoroughly beaten in for about 5 minutes; thereupon the concentrated oil of vitriol and water are gradu ally introduced while the mixer is in motion for about 5 to 6 minutes, the mixing continuing until the mass becomes thoroughly mixed; ?nally the acetic acid and water are introduced and sub jected to the same thorough mixing. 7. A painting composition as claimed in claim 2 as set forth. 8. Fire-resisting articles impregnated with a composition as claimed in claim 2 as set forth. 9. Fire-resisting plastering consisting of a com 60 40 position as claimed in claim 2 added to a cellulose ‘70 base as set forth. Concentrated oil of vitriol ________ __ 11/2 to 21/4 Acetic acid ______________________ __ 3/; to 11/2 10. Fire-resisting ‘boards for covering and other purposes including a composition as claimed in 3. A process of manufacture of ?re-resisting 65 claim 2 as set forth. coating and impregnating composition as claimed in claim 2, consisting in adding the ingredients CECIL FREDERIC MOON. NORMAN COLLINSON-JONES.