发明名称 |
Process for producing sheet-like structures from vinyl alcohol polymers |
摘要 |
A sheet-like structure is produced from a vinyl alcohol polymer by a method wherein, in a self-cleaning multi-screw extruder, the polymer is mixed with a small amount of water, the mixture is melted, homogenized, devolatilized and finally extruded as a melt, and the extrudate is shaped in a conventional manner into the sheet-like structure.
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申请公布号 |
US4493807(A) |
申请公布日期 |
1985.01.15 |
申请号 |
US19820443615 |
申请日期 |
1982.11.22 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
VYVIAL, RUDOLF;TAUBITZ, CHRISTOF;SCHLEMMER, LOTHAR;BLECKMANN, GERHARD;ZUERGER, MANFRED;KRIEGER, HEINRICH;THIELE, HEINO |
分类号 |
B29B7/00;B29C47/00;B29C47/76;B29C47/92;B29K29/00;B29L7/00;C08J5/18;(IPC1-7):B29F3/03 |
主分类号 |
B29B7/00 |
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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