Water insoluble cross-linked acid compositions

Details Water insoluble cross-linked acid compositions Water insoluble cross-linked acid compositions

1992-03-20

1994-03-15

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253274, 5253278, 525380, 525382, 525420, 530350, 530421, C08F 830, C08F 812

Patent

active

052946819

ABSTRACT:
There is provided water insoluble cross-linked polyhydroxy polycarboxylic acid having at least two strands each having a strand skeleton of the formula: ##STR1## wherein one carbonyl group of at least one maleoyl moiety thereof in each strand is covalently linked to a

REFERENCES:
patent: 2988539 (1961-06-01), Cohen
patent: 3299184 (1967-01-01), Whitworth
patent: 3684777 (1972-08-01), Field

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