Crosslinked polyaspartic acid and salts

Details Crosslinked polyaspartic acid and salts Crosslinked polyaspartic acid and salts

1994-12-27

1996-06-11

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528332, 528335, 528345, 525421, 525422, C08G 6948

Patent

active

055257038

ABSTRACT:
There is disclosed novel cross linked polyanhydroaspartic acid which is the product of the reaction of a polysuccinidmide with triaminononoane (TAN). Depending upon the amount a cross linking agent employed compositions of varying degrees of cross linking are produced. Mole ratio of polysuccinimide to TAN such as from 3 to 1 provides a water insoluble material while a mole ratio of 102 to 1 provides a water soluble material at 28% by weight. Such compounds find utility as thickeners, deflocculants, flocculants and water absorbers.

REFERENCES:
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patent: 4332928 (1982-06-01), Kluger et al.
patent: 4363797 (1982-12-01), Jacquet et al.
patent: 5247068 (1993-09-01), Donarchy et al.
patent: 5284936 (1994-02-01), Donarchy et al.
patent: 5286810 (1994-02-01), Wood
"Water Soluble Polyamides as Potential Drug Carriers", pp. 35-50, Eberhard W. Neuse et al Die Angewandte Makromolekulare Chemie 192 (1991).
"Polymeric Micelles As Novel Drug Carriers and Virus Mimicking Vehicles", K. Kataoka et al, Macromolecules 1992, pp. 267-276.

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