Vinyl acetate-acrylic acid copolymer foams

Other proposed compositions are double layer films, including an inner film containing a copolymer of ethylene vinyl acetate and an outer film containing a copolymer of ethylene and acrylic acid. The purpose of the outer film, however is to improve the adhesion between the PU foam and the outer film. In contrast, the inner film effectively provides a stress relief layer. [Pg.282]

Water (Isopropyl alcohol can also be used) Wax, silicone and nonionic surface active agent are used as anti foaming agents. Acrylic polymer Emulsion of acrylic polymer Ethylene oxide polymer Hydroxyl ethyl Cellulose Methyl cellulose Polyvinyl alcohol Isocyanate Wax wetting agent Aqueous urethane. Salt of methacrylic acid copolymer Wax emulsion Emulsion of ethylene-vinyl acetate eopolviner ... [Pg.106]