| 摘要 |
1,268,311. Laminates. DENKI KAGAKU KOGYO K.K. 21 April, 1970 [21 April, 1969], No. 19008/70. Heading B5N. [Also in Division C3] Laminates are made by bonding together plywood and a soft P.V.C. sheet, under heat and pressure, using an emulsion made by the aqueous emulsion polymerization of ethylene and vinyl acetate with or without butyl acrylate, acrylic acid, vinyl chloride or a mixture of vinyl esters of C 9-11 tertiary alpha saturated carboxylic acids (as additional monomers), in the presence of a wood rosin, the emulsion optionally containing dibutyl phthalate with or without toluene. |
