| abstract |
1,207,532. Laminates. UNIROYAL Inc. 2 May, 1967 [5 May, 1966; 1 July, 1966 (2); 19 Oct., 1966], No. 20202/67. Heading B5N. [Also in Divisions B2 and C3] An adhesive composition for bonding textile fabrics to produce secondary backed carpets, e.g. bonding a jute backing to nylon tufted carpet, comprises a polymer latex obtained by emulsion polymerization using novel telomer emulsifiers (see Division C3). Polymer latexes exemplified are those of butadiene polymers and copolymers (e.g. with styrene, itaconic acid, acrylonitrile, ethyl acrylate, acrylic acid, methacrylic acid or methacrylamide), styrene - acrylonitrile, ethyl acrylate - itaconic acid, ethyl acrylate - styrene - itaconic acid, ethyl acrylate - butyl acrylate - itaconic acid copolymers and polystyrene. Additives may be included in the latexes, e.g. alkylated p-cresol (antioxidant), sodium hexametaphosphate, calcium carbonate, whiting, tetrapotassium pyrophosphate, polymerized sodium alkylnaphthalene sulphonate and sodium polyacrylate. In an example (Example XXX) laminating is effected at 260- 300 F. |