Aqueous solutions or dispersions of hydroxy-functional copolymer

Details Aqueous solutions or dispersions of hydroxy-functional copolymer Aqueous solutions or dispersions of hydroxy-functional copolymer

1991-03-26

1992-07-28

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

526262, 52631825, 5263285, C08L 3700, C08F22240, C08F22202, C08F22010

Patent

active

051341883

ABSTRACT:
The present invention relates to aqueous solutions or dispersions of hydroxy-functional copolymers containing imide structural units corresponding to the formula ##STR1## The present invention also relates to a process for the production of these aqueous solutions or dispersions of hydroxy-functional copolymers containing imide structural units by reacting anhydride-functional and optionally carboxyl-functional copolymers corresponding to the hydroxy-functional copolymers with aminoalcohols and optionally aminocarboxylic acids. In a further embodiment of the process the hydroxy-functional copolymers may be reacted with lactones resulting in ring opening and the formation of ester groups.

REFERENCES:
patent: 3676404 (1972-07-01), Nield
patent: 4452948 (1984-06-01), Marrion et al.
patent: 4816523 (1989-03-01), Tsujimoto et al.

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