Latex copolymers for paper coating compositions
AssigneeThe Dow Chemical Company
InventorsBradley J. Helmer, Shirley J. Loughney, Jon MacDonagh-Dumler
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Abstract
The present invention relates to a copolymer comprising in polymerized form from about 1 to about 15 weight percent of one or more ethylenically unsaturated poly(ethylene glycol) monomers represented by the following formula: ##STR1## where R.sup.1 is an ethylenically unsaturated functional group, R is H, OH or OCH.sub.3, and n is from 3 to 20, and from about 60 to about 99 weight percent of one or more monovinyl aromatic monomers, one or more aliphatic conjugated diene monomers or a mixture thereof. Paper coating compositions comprising this copolymer impart improved sheet gloss and dry pick characteristics to the coated paper.
Claims12
A copolymer comprising in polymerized form:
- (a) from about 1 to about 15 weight percent of one or more ethylenically unsaturated poly(ethylene glycol) monomers represented by the following formula:
- ##STR9## where R.sup.1 is an ethylenically unsaturated functional group;
- R is H, OH or OCH.sub.3 ;
- and n is from 3 to 20;
- (b) from about 60 to about 99 weight percent of a mixture of 1,3-butadiene and one or more monovinyl aromatic monomers;
- and
- (c) from 0 to about 39 weight percent of one or more (meth)acrylate monomers, vinylidene halide monomers, vinyl halide monomers, vinyl esters of carboxyl acids containing from 1 to 18 carbon atoms, (meth)acrylonitrile monomers, monoethylenically unsaturated carboxylic acid monomers, or a mixture thereof.
Dependencies are inferred from the claim text.