Copolymers containing carboxyl groups, their preparation, and th

Details Copolymers containing carboxyl groups, their preparation, and th Copolymers containing carboxyl groups, their preparation, and th

1991-08-15

1992-04-28

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

524555, 524561, 524556, C08F 2602, C08L 3900, C08L 3308, C08L 3302

Patent

active

051090910

ABSTRACT:
The invention relates to copolymers containing carboxyl groups and having a thickener action and also containing, inter alia, units (a) and/or (b) and/or (c) derived from monoethylenically unsaturated monomers of the formula (I) ##STR1## and/or from polyunsaturated monomers of the formula (II) ##STR2## and/or from urethane group-containing monomers of the formula (III) ##STR3## where only one of the two radicals R.sup.1 and R.sup.2 in the formula (I) is ethylenically unsaturated, while both radicals R.sup.5 and R.sup.6 in the formula (II) are ethylenically unsaturated.

REFERENCES:
patent: Re33156 (1990-01-01), Shay et al.

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