发明授权
- 专利标题: Process for producing lactone polyesters
- 专利标题(中): 生产内酯聚酯的方法
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申请号: US97780申请日: 1979-11-28
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公开(公告)号: US4289873A公开(公告)日: 1981-09-15
- 发明人: Masayoshi Kubo , Michio Nakanishi , Mamoru Kimura
- 申请人: Masayoshi Kubo , Michio Nakanishi , Mamoru Kimura
- 申请人地址: JPX Sakai
- 专利权人: Daicel Chemical Industries, Ltd.
- 当前专利权人: Daicel Chemical Industries, Ltd.
- 当前专利权人地址: JPX Sakai
- 优先权: JPX53-148211 19781130
- 主分类号: C08G63/00
- IPC分类号: C08G63/00 ; C08G18/42 ; C08G63/82 ; C08G63/10
摘要:
In a process for producing a lactone polyester which comprises ring-opening polymerization of a lactone in the presence of a metal containing organic compound as a catalyst, the improvement wherein said compound is an alcoholate, chelate or organic acid salt of vanadium or molybdenum.
公开/授权文献
- USD416288S Stamp applicator 公开/授权日:1999-11-09
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