发明授权
- 专利标题: Process for preparing polyaspartic acid
- 专利标题(中): 聚天冬氨酸的制备方法
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申请号: US525430申请日: 1995-09-07
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公开(公告)号: US5714558A公开(公告)日: 1998-02-03
- 发明人: Torsten Groth , Winfried Joentgen , Nikolaus Muller
- 申请人: Torsten Groth , Winfried Joentgen , Nikolaus Muller
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer AG
- 当前专利权人: Bayer AG
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX4306412.4 19930302
- 主分类号: C08G73/10
- IPC分类号: C08G73/10 ; C08F26/00
摘要:
Polyaspartic acid is prepared by polymerization of aspartic acid, maleic acid anhydride, maleic acid or fumaric acid in a solvent at from 130.degree. C. to 300.degree. C., optionally in the presence of ammonia.
公开/授权文献
- US4484387A Machine tool base and carriage system 公开/授权日:1984-11-27
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