发明授权
US06825312B2 Polycarbonates, polyester carbonates and polyesters with special branched terminal groups
失效
聚碳酸酯，聚酯碳酸酯和具有特殊支链端基的聚酯
- 专利标题： Polycarbonates, polyester carbonates and polyesters with special branched terminal groups
- 专利标题（中）： 聚碳酸酯，聚酯碳酸酯和具有特殊支链端基的聚酯
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申请号： US10420670申请日： 2003-04-22
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公开(公告)号： US06825312B2公开(公告)日： 2004-11-30
- 发明人: Alexander Meyer , Melanie Moethrath , Werner Heuer Helmut , Rolf Wehrmann , Friedrich-Karl Bruder
- 申请人： Alexander Meyer , Melanie Moethrath , Werner Heuer Helmut , Rolf Wehrmann , Friedrich-Karl Bruder
- 优先权： DE10219229 20020430
- 主分类号： C08G6302
- IPC分类号： C08G6302
摘要：
A phenolic compound having a branched structure is disclosed. The compound conforms to HO—Ar1—X—Ar2—[Y—W]n (1) wherein Ar1 and Ar2 independently denote an optionally substituted mononuclear or polynuclear aromatic moiety, X and Y independently denote a single bond or a divalent radical, W denotes an optionally substituted mononuclear or polynuclear aromatic moiety or an aliphatic or cycloaliphatic radical, and n is 1 to 5, is useful as a terminal group in polycarbonates, polyester carbonates and polyesters. Also disclosed is a process for producing such resins where the disclosed compound is a chain terminator.