发明授权
- 专利标题： Heat-resisting aromatic polyester and process for preparing the same
- 专利标题（中）： 耐热芳香族聚酯及其制备方法
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申请号： US484848申请日： 1983-04-14
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公开(公告)号： US4552947A公开(公告)日： 1985-11-12
- 发明人: Hiroshi Iwakiri , Masahiro Asada , Kazuya Yonezawa
- 申请人： Hiroshi Iwakiri , Masahiro Asada , Kazuya Yonezawa
- 申请人地址： JPX Osaka
- 专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX57-66121 19820419
- 主分类号： C08G63/00
- IPC分类号： C08G63/00 ; C08G63/19 ; C08G63/193 ; C08G63/79 ; C08G63/82 ; C08G63/18
摘要：
An aromatic polyester having improved heat resistance, hydrolysis resistance and alkali resistance which comprises recurring units of the general formula: ##STR1## and recurring units of the general formula: ##STR2## wherein R.sup.1 and R.sup.2 are an alkyl or alkoxyl group having 1 to 4 carbon atoms, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are the same or different and each is an alkyl or alkoxyl group having 1 to 4 carbon atoms, Cl or Br, x and y are an integer of 1 to 4, z, x', y' and z' are 0 or an integer of 1 to 4, and X is an alkylidene or cycloalkylidene group having 1 to 8 carbon atoms, --O--, --S--, --SO.sub.2 -- or --CO--.
公开/授权文献
- US5045511A Ceramic bodies formed from yttria stabilized zirconia-alumina 公开/授权日：1991-09-03