Patent GB-361025-A (GB)
Title: Process for coating frabrics and material therefor
IPC: D06M13/224
Filed: 1930-09-05
Abstract: A material for coating fabrics such as linoleum is produced by heating oils, fatty acids, fatty acid salts and esters or natural resins, with sulphur, the heating being interrupted at the stage when the material is still plastic or thermoplastic and when all the sulphur has combined therewith.  The modified oil &c. first produced is sticky and soluble in acetone or benzene, and may be used for coating insulating tape, but in order to obtain a non-sticky adherent coating further treatment of the coated fabric is necessary.  It may be treated with aldehydes, formaldehyde, ketones, acetone, ethers, esters, alcohols, phenols, naphthols, organic acids or their salts or derivatives, or with other substances causing polymerization.  It may be heated, or exposed to ultra-violet light, or kept for a period in the presence of air, or of other gases.  Any combination of these treatments may be used.  The modified products may be applied to the fabric in solution or emulsion, and fillers such as china clay or chalk, dyes, resins, rubber, &c., may be incorporated therewith.  In one example, rapeseed oil is heated with sulphur, and heating continued until no sulphur separates on cooling.  The resulting oil is a viscous fluid soluble in benzene.  A 5-10 per cent solution in benzene may be used for the impregnation of fabric. The sticky surface layer may be transformed into a solid insoluble coating by treatment as before described.  Aqueous emulsions may be produced from the modified oil by dispersion in the fluid or dissolved state in water with the addition of protective colloids and peptizing agents.  Compounding ingredients may be mixed with the oil at any stage.  In a second example, oil treated with salt as described in Specification 287,943, [Class 91, Oils &c.], is heated with sulphur for one hour at 130-140 DEG  C. with stirring. The paste obtained is plastic and may be applied to fabric in spreading apparatus.  The coated fabric is passed through acetone. This fabric may be used as insulating tape.  The coating may be further treated by heating; the final product is similar to oiled silk.ALSO:A material for coating fabrics such as linoleum is produced by heating oils, fatty acids, fatty acid salts and esters or natural resins, with sulphur, the heating being interrupted at the stage when the material is still plastic or thermoplastic and when all the sulphur has combined therewith.  The modified oil &c. first produced is sticky and soluble in acetone or benzene, and may be used for coating insulating tape, but in order to obtain a non-sticky adherent coating further treatment of the coated fabric is necessary.  It may be treated with aldehydes, formaldehyde, ketones, acetone, ethers, esters, alcohols, phenols, naphthols, organic acids or their salts or derivatives, or with other substances causing polymerization.  It may be heated, or exposed to ultra-violet light, or kept for a period in the presence of air, or of other gases.  Any combination of these treatments may be used.  The modified products may be applied to the fabric in solution or emulsion, and fillers such as china clay or chalk, dyes, resins, rubber, &c. may be incorporated therewith.  In one example, rape seed oil is heated with sulphur, and heating continued until no sulphur separates on cooling.  The resulting oil is a viscous fluid soluble in benzene.  A 5-10 per cent solution in benzene may be used for the impregnation of fabric. The sticky surface layer may be transformed into a solid insoluble coating by treatment as before described.  Aqueous emulsions may be produced from the modified oil by dispersion in the fluid or dissolved state in water with the addition of protective colloids and peptizing agents.  Compounding ingredients may be mixed with the oil at any stage.  In a second example, oil treated with salt as described in Specification 287,943, [Class 22, Cements &c.], is heated with sulphur for one hour at 130-140 DEG  C. with stirring. The paste obtained is plastic and may be applied to fabric in spreading apparatus.  The coated fabric is passed through acetone. This fabric may be used as insulating tape. The coating may be further treated by heating, the final product is similar to oiled silk.