| 摘要 |
1,202,487. Ethylene-vinyl acetate copolymers. CELANESE CORP. 18 Dec., 1968 [22 Dec., 1967], No. 60076/68. Heading C3P. Ethylene and vinyl acetate are copolymerized in aqueous emulsion in the presence of a non- ionic surfactant or a mixture of non-ionic and anionic surfactants having a HLB of 16-18. |
