发明名称 |
HEAT-SEALABLE ANTISTATIC POLYPROPYLENE FILMS |
摘要 |
<p>HEAT-SEALABLE ANTISTATIC POLYPROPYLENE FILMS An oriented heat-sealable antistatic polypropylene film is manufactured by applying to one or both surfaces of a base polypropylene film, preferably by co-extrusion, a layer of a heat-sealable olefinic polymer (for example, a predominantly linear random copolymer of ethylene with butene-1) containing between 0.2 and 10% by weight of an anionic hydrocarbyl (preferably long chain alkyl) sulphonate. A slip agent, for example oleamide, may also be incorporated in the base polypropylene film. The antistatic film has improved heat-sealing properties which permits it to be run successfully on packaging machinery at high speeds. DRH/JR/MCM/SA/BA 321</p> |
申请公布号 |
CA1149124(A) |
申请公布日期 |
1983.07.05 |
申请号 |
CA19790335895 |
申请日期 |
1979.09.18 |
申请人 |
BRITISH CELLOPHANE LIMITED |
发明人 |
ANDREWS, WILLIAM J.;ESPLEY, DAVID J.C.;PHILPOTT, WILLIAM J.M. |
分类号 |
B29C55/00;B29C49/00;B29C55/02;B29K23/00;B29L9/00;B32B27/18;B32B27/32;C08J7/04;C09J123/04;(IPC1-7):B32B27/08 |
主分类号 |
B29C55/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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