Polyaspartic acid manufacture

Details Polyaspartic acid manufacture Polyaspartic acid manufacture

1993-06-21

1994-05-24

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20740

Patent

active

053150104

ABSTRACT:
Polyaspartic acid having a weight average molecular weight of 1000 to 5000 is produced by hydrolysis of anhydropolyaspartic acid that has been produced by condensation polymerization of L-aspartic acid. Conversion in excess of 80 percent is achievable utilizing "temperature vs. time" profiles.

REFERENCES:
CA88(23):170465q Potentiometric . . . polycondensation. Kokufuta et al., p. 626, 1978.
CA104(16):136079f Polymers . . . therapy. Murakami et al., p. 390, 1986.
CA105(17):153559a Preparation . . . substances. Murakami et al., p. 743, 1986.
CA115(8):214839x Preparation . . . foods. Lehmann et al., p. 457, 1991.

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