Styrene-butadiene latex compositions
AssigneeReichhold Chemicals, Inc.
InventorsRebecca L. Durney Cronin, W. Scott Rutherford, James F. Campbell
Life of this patent
Estimating the term…
Abstract
A styrene-butadiene composition containing about 0.1 to 10 weight % of a monoester of maleic acid or fumaric acid provides improved bonding strength. In addition, small amounts of a functional monomer can also be included.
Claims10
A latex binder composition consisting essentially of:
- (a) about 2 to 90 weight % styrene;
- (b) about 15 to 98 weight % butadiene;
- (c) about 0.1 to 10 weight % of a monoester of maleic or fumaric acid having the following structure:
- ROOC--CH.dbd.CH--COOH
- wherein R is a C.sub.1 to C.sub.12 alkyl group.
In a process for improving the bonding strength of an adhesive binder latex comprising a polymer emulsion of styrene and butadiene, the improvement which comprises incorporating in said polymer emulsion prior to or during the polymerization, about 0.1 to 10 weight % of a monoester of maleic or fumaric acid having the following structure:
- ROOC--CH.dbd.CH--COOH
- wherein R is an C.sub.1 to C.sub.12 alkyl group.
Dependencies are inferred from the claim text.