Heat stable prepastes for wallcoverings

Details Heat stable prepastes for wallcoverings Heat stable prepastes for wallcoverings

C - Chemistry, Metallurgy

09

J

117/201, 117/202

C09J 7/04 (2006.01) C09J 133/02 (2006.01) C09J 157/00 (2006.01)

Patent

CA 1307870

"HEAT STABLE PREPASTES FOR WALLCOVERINGS" ABSTRACT A method of producing a prepasted wallcovering comprises applying to a substrate a paste composition comprising a water-in-oil emulsion of a water-soluble polymer which is essentially wholly anionic but contains a small amount of crosslinking residues derived from a polyfunctional monomer. The composition additionally contains a surfactant and has a pH of at least 7. The method is especially applicable to the production of prepasted wallcoverings which require a subsequent heat treatment step, the composition being designed to withstand temperatures of at least 200°C.

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