发明授权
- 专利标题： Polycarbonate of alkyl cyclohexylidene bisphenol
- 专利标题（中）： 烷基亚环己基双酚的聚碳酸酯
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申请号： US452874申请日： 1989-12-19
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公开(公告)号： US5010162A公开(公告)日： 1991-04-23
- 发明人: Volker Serini , Dieter Freitag , Uwe Westeppe , Karsten Idel , Ulrich Grigo , Carl Casser , Klaus-Christian Paetz , Manfred Hajek
- 申请人： Volker Serini , Dieter Freitag , Uwe Westeppe , Karsten Idel , Ulrich Grigo , Carl Casser , Klaus-Christian Paetz , Manfred Hajek
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3843560 19881223; DEX3926719 19890812
- 主分类号： C08G64/00
- IPC分类号： C08G64/00 ; C08G64/06 ; C08G64/10
摘要：
Thermoplastic aromatic polycarbonates having average molecular weights Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent hydrogen, a C.sub.1 -C.sub.12 hydrocarbon radical, halogen andR.sup.5, R.sup.6 and R.sup.7 represent hydrogen, iso-C.sub.3 -C.sub.5 -alkyl,one of the substituents R.sup.5, R.sup.6 or R.sup.7 not being hydrogen, in quantities of from 100 to 1 mol-%, based on the total quantity of difunctional carbonate structural units in the polycarbonate.
公开/授权文献
- US5528273A Video printer 公开/授权日：1996-06-18