Patent GB-605859-A (GB)
Title: Film forming compositions
IPC: C03C25/465
Filed: 1943-10-13
Abstract: Paper, textiles and articles made from cellulose, linen, wool, asbestos, glass, cellulose esters and ethers and synthetic polyamides are rendered water resistant by impregnation or coating with compositions (see Groups IV (a) and V) which comprise a film-forming substance selected from the group consisting of amylaceous substances, natural gums and polyvinyl alcohol and an antimony compound reactive with the film-forming substance to render it insoluble on dehydration.  The film-forming material and the antimony compound may be applied to the treated material separately, the film-forming material being applied first. Specification 604,904 is referred to.ALSO:A water-resistant composition suitable for an adhesive, size or coating composition and for use in textile printing and dyeing comprises a film-forming substance such as polyvinyl alcohol and a fixing agent comprising an antimony compound reactive with the film-forming substance to render it insoluble upon dehydration. The pH of the mixture is preferably kept between 2.5 and 7.0 and the quantity of antimony compound used is 0.25 to 25 per cent of the weight of the film-forming component.  Pentavalent antimony compounds are preferred, particularly potassium pyroantimoniate and antimonic oxide though trivalent antimony compounds in larger quantities may be used.  Mixtures of potassium pyroantimoniate with antimony trifluoride and with antimony lactate are especially suitable.  The film-forming component may either be added to the antimony compound in the solid form or in solution or dispersion; or when materials are to be impregnated or coated they may be treated first with the film-forming component and then subsequently with the antimony compound.  Thinners and modifying agents such as sodium silicofluoride, ammonium oxalate, sodium perborate, sodium persulphate, citric, lactic and acetic acids and enzymes may be added to the mix before the dehydration process. Fillers such as fuller's earth and bentonite and natural and synthetic resins such as urea-formaldehyde, polyvinyl and methyl methacrylate resins may be included at any state of the process, but fulling and softening agents such as glycerine, sulphonated oils, higher alcohol sulphates such as dodecyl sulphate and cetyl sulphate should only be used after the dehydration process.  The process may be used in coating, impregnating, and otherwise treating woven, knit, and sheet materials, board-like products, and fabricated articles made from cellulose, linen, wool, asbestos, glass, cellulose esters and ethers, and synthetic polyamides.  Examples I, II and IV describe the use of varying amounts of potassium pyroantimoniate up to 4 per cent as insolubilizing agents for modified starches containing up to 15 per cent polyvinyl alcohol in the preparation of finishing and printing preparations for textiles.  Specification 604,904 is referred to.ALSO:A water-resistant composition suitable for an adhesive, size, coating composition, and for use in textile printing and dyeing comprises a film-forming substance selected from the group consisting of amylaceous substances, natural gums and polyvinyl alcohol and a fixing agent comprising an antimony compound reactive with the film-forming substance to render it insoluble upon dehydration.  The pH of the mixture is preferably kept between 2.5 and 7.0 and the quantity of antimony compound used is 0.25 to 25 per cent of the weight of the film-forming component. The amylaceous material may be obtained from wheat, rye, barley, oats, rice, corn, potato, sago or cassava, and the gum may be locust bean gum or gum tragacanth. Pentavalent antimony compounds are preferred, particularly potassium pyroantimoniate and antimonic oxide though trivalent antimony compounds in larger quantities may be used.  Mixtures of potassium pyroantimoniate with antimony trifluoride and with antimony lactate are especially suitable.  The film-forming component may either be added to the antimony compound in the solid form or in solution or dispersion; or when materials are to be impregnated or coated they may be treated first with the film-forming component and then subsequently with the antimony compound.  Thinners and modifying agents such as sodium silico fluoride, ammonium oxalate, sodium perborate, sodium persulphate, citric, lactic and acetic acid and enzymes may be added to the mix before the dehydration process. Fillers such as fuller's earth and bentonite and natural and synthetic resins such as urea formaldehyde polyvinyl and methyl methacrylate resins may be included at any state of the process, but fulling and softening agents such as glycerine, sulphonated oils, higher alcohol sulphates such as dodecyl sulphate and cetyl sulphate should only be used after the dehydration process.  The process may be used in coating, impregnating, and otherwise treating woven, knit and sheet materials, board-like products, and fabricated articles made from cellulose, linen, wool, asbestos, glass, cellulose esters, and ethers, and synthetic polyamides. Examples I, II and IV describe the use of varying amounts of potassium pyroantimoniate up to 4 per cent as insolubilising agents for modified starches containing up to 15 per cent polyvinyl alcohol in the preparation of finishing and printing preparations for textiles.  Example III describes the use of a similar composition containing a phthalocyanine type of dye or a lake pigment in cotton printing.  Specification 604,904 is referred to.ALSO:A water-resisting composition suitable for an adhesive size or coating composition comprises a film-forming substance selected from the group consisting of amylaceous substances and natural gums and a fixing agent comprising an antimony compound reactive with the film forming substance to render it insoluble upon dehydration.  The pH of the mixture is preferably kept between 2.5 and 7.0 and the quantity of antimony compound used is 0.25 to 25 per cent of the weight of the film-forming components.  The amylaceous material may be obtained from wheat, rye, barley, oats, rice, corn, potato, sago or cassava and the gum may be locust bean gum or gum tragacanth. Pentavalent antimony compounds are preferred particularly potassium pyroantimoniate and antimonic oxide, though trivalent antimony compounds in larger quantities may be used.  Mixtures of potassium pyroantimoniate with antimony trifluoride and with antimony lactate are especially suitable.  The film forming component may either be added to the antimony compound in the solid form or in solution or dispersion; or when materials are to be impregnated or coated they may be treated first with the film forming component and then subsequently with the antimony compound.  Thinners and modifying agents such as sodium silico fluoride, ammonium oxalate, sodium perborate, sodium persulphate, citric, lactic and acetic acids and enzymes may be added to the mix before the dehydration process. Fillers such as fullers earth and bentonite, and natural and synthetic resins such as urea formaldehyde, polyvinyl and methyl methacrylate resins may be included at any stage of the p  process, but fulling and softening agents such as glycerine, sulphonated oils, higher alcohol sulphates, such as dodecyl sulphate and cetyl sulphate should only be used after the dehydration process.  The process may be used in the impregnation and coating of woven materials, knit materials, board like products and fabricated articles made from cellulose, linen, wool, asbestos, glass cellulose esters and ethers and synthetic polyamides.  Ex. VII describes an adhesive obtained by dry mixing 95 per cent of a chlorinated or oxidised starch with 5 per cent of potassium pyroantimoniate and then dissolving in water and heating to 160 DEG F.  Specification 604,904 is referred to.