Absorbent gelling materials of crosslinked polyaspartate

Details Absorbent gelling materials of crosslinked polyaspartate Absorbent gelling materials of crosslinked polyaspartate

1996-02-02

1998-06-30

Mosley, Terressa

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

Synthetic resins

From carboxylic acid or derivative thereof

C08G 6344

Patent

active

057735646

ABSTRACT:
Absorbent gelling materials are prepared by crosslinking polyaspartate units. The crosslinked homopolymers exhibit improved gel volumes, gel strengths and extractable material characteristics. Using diamine crosslinkers in an amount of 2.5-30 percent by weight, the blue-dextran saline gel volumes of at least 15 can be obtained. Similarly, gel strengths of 300 N/m.sup.2 or better, including gel strengths above 3000 N/m.sup.2, can be obtained. The resulting product is susceptible of a variety of uses, is biodegradable, and can be prepared in a particle size suitable for use in a diaper.

REFERENCES:
patent: 5552516 (1996-09-01), Ross et al.

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