发明授权
US3998792A Polyvinyl butyral polymer mixture for making intermediate sheeting for
laminated glass
失效
用于制造层压玻璃中间层的聚乙烯丁基聚合物混合物
- 专利标题: Polyvinyl butyral polymer mixture for making intermediate sheeting for laminated glass
- 专利标题(中): 用于制造层压玻璃中间层的聚乙烯丁基聚合物混合物
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申请号: US631190申请日: 1975-11-11
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公开(公告)号: US3998792A公开(公告)日: 1976-12-21
- 发明人: Hans Dieter Hermann , Joachim Ebigt , Klaus Fabian
- 申请人: Hans Dieter Hermann , Joachim Ebigt , Klaus Fabian
- 申请人地址: DT Frankfurt am Main
- 专利权人: Hoechst Aktiengesellschaft
- 当前专利权人: Hoechst Aktiengesellschaft
- 当前专利权人地址: DT Frankfurt am Main
- 优先权: DT2453780 19741113
- 主分类号: C08F8/00
- IPC分类号: C08F8/00 ; B32B17/10 ; C03C27/12 ; C08F8/28 ; C08L29/00 ; C08L29/14 ; C08F16/34 ; C08F16/06
摘要:
Mixtures of two distinct polyvinyl butyral grades, viz., one high viscosity and one low viscosity grade, both having a narrow molecular weight distribution exhibit good processing characteristics which nearly reach the performance of the high viscosity grades hitherto used.
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