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

1994-11-09

1996-04-09

Dodson, Shelley A.

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

Synthetic resins

From carboxylic acid or derivative thereof

210698, 210699, 210700, 210701, 252180, 525419, 525420, 525539, 528328, 528363, 528364, C08G 6900, C02F 100

Patent

active

055063357

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
R.sup.1 has the meaning given in the description, are suitable for water treatment and as a detergent additive.

REFERENCES:
patent: 3928196 (1975-12-01), Persinski et al.
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.
Orbit Abstract of DE-A-4221875 (Jan. 5, 1994).

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