Production of high molecular weight polysuccinimide and high mol

Details Production of high molecular weight polysuccinimide and high mol Production of high molecular weight polysuccinimide and high mol

1992-09-18

1993-06-15

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525420, 528363, 528328, C08G 7310, C08G 8500

Patent

active

052199525

ABSTRACT:
A method of producing high molecular weight polysuccinimide and high molecular weight polyaspartic acid. Reacting maleic anhydride with ammonia and further reacting with polymerized polysuccinimide. Hydrolyzing the resultant product to form polyaspartic acid.

REFERENCES:
patent: 4517241 (1985-05-01), Alpert
patent: 4839461 (1989-06-01), Boehmko
patent: 5116513 (1992-05-01), Koskan et al.
patent: 5142062 (1992-08-01), Knebel et al.
patent: 5152902 (1992-10-01), Koskan et al.

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