Sulfonic acid group-containing polyaspartic acid derivatives, us

Details Sulfonic acid group-containing polyaspartic acid derivatives, us Sulfonic acid group-containing polyaspartic acid derivatives, us

1996-04-08

1998-03-10

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528363, 528364, 525418, 525420, 525539, 525540, 25217423, 25217424, 252175, 252527, 252546, C08G 6900, C11D 308

Patent

active

057262802

ABSTRACT:
Sulfonic acid group-containing polyaspartic acid derivatives, some of which are novel, having repeating units of the structures I and II ##STR1## in which ##STR2## are suitable for water treatment and as a detergent additive.

REFERENCES:
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patent: 4363797 (1982-12-01), Jacquet et al.
patent: 4534881 (1985-08-01), Sikes et al.
patent: 4839461 (1989-06-01), Boehmke
patent: 5049310 (1991-09-01), Johnson et al.
patent: 5116513 (1992-05-01), Koskan et al.
patent: 5152902 (1992-10-01), Koskan et al.
patent: 5175285 (1992-12-01), Lehmann et al.
patent: 5328631 (1994-07-01), Du Vosel et al.
patent: 5506335 (1996-04-01), Uhr et al.
Orbit Abstract of DE 42 21 875 (Jan. 5, 1994).

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