Water-dilutable tetrapolymers of vinyl acetate, maleic diesters, crotonic acid and hydrophilic unsaturated copolymerizable esters
AssigneeWacker Chemie AG
InventorsAlois Stoll, Eduard Bergmeister
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Abstract
A vinyl acetate copolymerizate of monomers being a free-radical polymerized copolymerizate having monomer units consisting essentially of A. from 60% to 80% by weight of vinyl acetate units, B. from 10% to 20% by weight of units of a maleic acid diester with a straight-chained alkanol-1 having from about 8 to 10 carbon atoms, C. from 5% to 20% by weight of units of a mono-olefinically unsaturated ester having from 6 to 8 carbon atoms and a hydrophilic group, and D. from 3% to 10%, particularly 7%, by weight of crotonic acid; as well as an alcoholic solution thereof and salts thereof.
Claims10
A vinyl acetate copolymerizate of monomers being a free-radical polymerized copolymerizate having monomer units consisting essentially of
- a. from 60% to 80% by weight of vinyl acetate units,
- b. from 10% to 20% by weight of units of a maleic acid diester with straight-chained primary alcohols selected from the group consisting of n-octanol-1, n-decanol-1 and mixtures thereof,
- c. from 5% to 20% by weight of units of a mono-olefinically unsaturated ester copolymerizable with vinyl acetate and having from 6 to 8 carbon atoms and a hydrophilic group selected from the group consisting of carboxyl groups, hydroxyl groups and keto groups, and
- d. from 3% to 10% by weight of crotonic acid units;
- and the copolymers thereof neutralized by salt forming compounds.
Dependencies are inferred from the claim text.