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1.Process for preparing polyvinyl alcohol in the presence of dialdehydes 失效
Title translation: 在二醛存在下制备聚乙烯醇的方法公开(公告)号:US3379703A
公开(公告)日:1968-04-23
申请号:US41854864
申请日:1964-12-15
Applicant: HOECHST AG
Inventor: WERNER EHMANN , SIEGFRIED SOMMER , FRITZ WINKLER
IPC: C08F8/12
CPC classification number: C08F8/12 , C08F118/08
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公开(公告)号:US3345198A
公开(公告)日:1967-10-03
申请号:US35805464
申请日:1964-04-07
Applicant: HOECHST AG
Inventor: GERHARD PFEIFFER , KURT STETZELBERG , FRITZ WINKLER
CPC classification number: D06P1/0056 , D06P1/122
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公开(公告)号:US3143532A
公开(公告)日:1964-08-04
申请号:US85725959
申请日:1959-12-04
Applicant: HOECHST AG
Inventor: HEINZ KAHRS KARL , WERNER STARCK , FRITZ WINKLER , WOLFGANG ZIMMERMANN JOHANN
IPC: C08F8/12 , C08F283/06
CPC classification number: C08F283/06 , C08F8/12 , C08F218/04 , C08F218/08
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公开(公告)号:US3236913A
公开(公告)日:1966-02-22
申请号:US21809462
申请日:1962-08-20
Applicant: HOECHST AG
Inventor: GERHARD PFEIFFER , HELMUT SCHMIDT , KURT STETZELBERG , FRITZ WINKLER
CPC classification number: D06P1/6138 , D06P1/12 , D06P1/122 , D06P1/52 , D06P1/5228 , D06P1/58
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