发明名称 |
Process for manufacturing films from semi-crystalline fluid polymers by coextrusion and tubular film blowing |
摘要 |
A process for manufacturing thermoplastic polymer films by coextrusion comprising coextruding by blow extrusion at least two thermoplastic polymers, one of the polymers being a semi-crystalline fluid polymer, the other a thermoplastic polymer incompatible with and with no adhesive affinity for the semi-crystalline fluid polymer and possessing sufficient extrudate strength to support the semi-crystalline polymer, cooling the coextrudate, separation of the resulting films, and recovering at least the semi-crystalline thermoplastic polymer film thus formed in the form of a film of substantially uniform thickness.
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申请公布号 |
US4871506(A) |
申请公布日期 |
1989.10.03 |
申请号 |
US19870138507 |
申请日期 |
1987.12.24 |
申请人 |
ATOCHEM |
发明人 |
MOULIES, JEAN-CLAUDE;REIGNIER, GERARD |
分类号 |
B29C47/00;B29C47/06;B29C55/28;B29K27/12;B29L7/00;C08J5/18 |
主分类号 |
B29C47/00 |
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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