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US06911501B1 Process for preparing aspartates 有权
天冬氨酸的制备方法

Process for preparing aspartates
摘要:
The present invention relates to novel aspartates, their method of production and the use of these aspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers. The aspartates are prepared by first reacting a di- or polyamine with an unsaturated ester and then reacting the resultant product with a maleimide.
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