发明授权
US4520175A Method of making heat-resistant polyester by reacting with a
N,N,diglycidyl-acidamide
失效
通过与N，N，二缩水甘油基酰胺反应制备耐热聚酯的方法
- 专利标题： Method of making heat-resistant polyester by reacting with a N,N,diglycidyl-acidamide
- 专利标题（中）： 通过与N，N，二缩水甘油基酰胺反应制备耐热聚酯的方法
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申请号： US591642申请日： 1984-03-20
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公开(公告)号： US4520175A公开(公告)日： 1985-05-28
- 发明人: Yoshihiro Arai , Takumi Tanaka
- 申请人： Yoshihiro Arai , Takumi Tanaka
- 申请人地址： JPX Osaka
- 专利权人： Unitika Ltd.
- 当前专利权人： Unitika Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX58-66439 19830414
- 主分类号： C08G63/00
- IPC分类号： C08G63/00 ; C08G59/28 ; C08G63/78 ; C08G63/91 ; C08L67/02 ; C08G63/76
摘要：
This invention is a method of making heat-resistant polyester, the method being characterized by reacting the polyester consisting of the aromatic dicarboxylic acid and the glycol with 2-6 carbons with 0.1-5 wt % of the bifunctional epoxy compound expressed by the general formula ##STR1## (R is hydrocarbon group; it may be substituted) to reduce the amount of end carboxyl group to less than 15 g equivalents per 10.sup.6 g of the polymer.