Amino acid copolymers of maleic acid

Details Amino acid copolymers of maleic acid Amino acid copolymers of maleic acid

1995-05-19

1996-06-18

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528363, 528367, 528480, 528488, 528489, 528502, 2523635, C08G 6910, C09K 300

Patent

active

055278787

ABSTRACT:
Polymers of maleic, fumaric or malic acids or maleic, fumaric or malic acid and ammonia with amino acids are prepared by heating at 180.degree.-350.degree. C., preferably 200.degree.-300.degree. C. The polymer formed may be converted to a salt by hydrolysis with a metal hydroxide or ammonium hydroxide.

REFERENCES:
patent: 4994153 (1991-02-01), Piano et al.
patent: 5286810 (1994-02-01), Wood
patent: 5408029 (1995-03-01), Wood et al.

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