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US5714558A Process for preparing polyaspartic acid 失效
聚天冬氨酸的制备方法

Process for preparing polyaspartic acid
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.
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