Polymers of citric acid and diamines, a process for their prepar

Details Polymers of citric acid and diamines, a process for their prepar Polymers of citric acid and diamines, a process for their prepar

1989-03-02

1991-06-25

Foelak, Morton

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

Synthetic resins

From carboxylic acid or derivative thereof

528341, 528342, 562589, C08G 6926, C07C 5908

Patent

active

050268210

ABSTRACT:
The present invention provides polyamides produced by the condensation of diamines with citric acid through the carboxyl groups attached to the carbon atoms in positions 1 and 3.
These polyamides can be used for the preparation of controlled-release forms of drugs.

REFERENCES:
patent: 1016833 (1962-09-01), Anderson
patent: 4064086 (1977-12-01), Cowsar et al.
patent: 4873311 (1989-10-01), Bornack, Jr. et al.
J. Polymeric Science Part A-1 5, p. 2441, 1967 by Ogata, N.
J. Polymeric Science 13, p. 1793 (1975).
J. Polymeric Science Part A-1 9, p. 2413 (1971).
Makromol. Chemical 186, p. 939 (1985).

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