| 摘要 |
1300341 Anti-electrostatic polyolefin compositions FARBENFABRIKEN BAYER AG 19 April 1971 [4 March 1970] 21702/71 Heading C3P A moulding composition comprises an olefin polymer and an anti-static agent of the formula in which R 1 is CH 3 or C 2 H 5 , R 2 is C 1 to C 18 alkyl, or R 1 and R 2 taken together are C 4 to C 6 alkylene, R 3 is C 1 to C 6 alkyl, and R 4 is C 5 to C 22 alkyl or alkenyl. The olefin polymer may be a homopolymer or a copolymer of at least one olefin and at least one co-polymerizable monomer and containing at least 50% by weight of the olefin, or may be a mixture of a homopolymer and such copolymer, the preferred polymers being polyethylene and polypropylene. Conventional additives such as pigments, fillers, soluble dyes, plasticizers, other stabilizers, and lubricants may also be included in the composition. The agent I is prepared by combining the corresponding tertiary amino diol and fatty acid (R 4 -COOH) and if desired may be formed in situ by mixing the diol and fatty acid components into the polyolefin. Alternatively a concentrate of the salt in a small amount of polyolefin may be added to more polyolefin or a solution or suspension of the salt in a volatile organic solvent, e.g. methanol or ethanol, may be added to the polyolefin and the solvent then removed by distillation.
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