发明授权
- 专利标题: Process for preparing polyesters based on hydroxycarboxylic acids
- 专利标题(中): 基于羟基羧酸制备聚酯的方法
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申请号: US111029申请日: 1993-08-24
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公开(公告)号: US5302694A公开(公告)日: 1994-04-12
- 发明人: Berthold Buchholz
- 申请人: Berthold Buchholz
- 申请人地址: DEX Ingelheim am Rhein
- 专利权人: Boehringer Ingelheim GmbH
- 当前专利权人: Boehringer Ingelheim GmbH
- 当前专利权人地址: DEX Ingelheim am Rhein
- 优先权: DEX4005415 19900221
- 主分类号: C08G63/06
- IPC分类号: C08G63/06
摘要:
The present invention relates to a method of producing polyesters based on hydroxycarboxylic acids, more particularly based on .alpha.-hydroxycarboxylic acids.
公开/授权文献
- US6101569A Computer resources access control apparatus and method 公开/授权日:2000-08-08
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