发明授权
- 专利标题: Process for producing high ductile polyesters
- 专利标题(中): 生产高韧性聚酯的方法
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申请号: US600643申请日: 1996-02-14
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公开(公告)号: US5648454A公开(公告)日: 1997-07-15
- 发明人: Daniel Joseph Brunelle
- 申请人: Daniel Joseph Brunelle
- 申请人地址: NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: NY Schenectady
- 主分类号: C08G63/183
- IPC分类号: C08G63/183 ; C08G63/85 ; C08F6/00 ; C08J3/00
摘要:
A process for making high ductile and high melting point polyesters comprising the step of contacting macrocyclic copolyester oligomers having structural units with C.sub.4 alkylene bridging radicals and structural units with bridging radicals other than C.sub.4 alkylenes, and a polymerization catalysts.
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