Patent ID: 9676958
Date: 2017-06-13
CPC Classifications: C08K,C08L,C09D

Claim:
1. A copolymer dispersion comprising a copolymer which is derived from a monomer mixture comprising: a) 88.5 to 94% by weight of at least one vinyl ester of a saturated carboxylic acid; b) 5 to 10.5% by weight of ethylene; c) 0.5 to 5% by weight of at least one ethylenically unsaturated acid and/or an anhydride thereof and/or a salt thereof; and d) 0.5 to 5% by weight of at least one ethylenically unsaturated monomer having at least one crosslinkable functional unit, wherein the weight ratio of vinyl ester units to ethylene units in the copolymer is between 89:11 and 94:6, referring to the total amount of these units, the dispersion is stabilized with at least 1% by weight of an emulsifier, and the amounts of monomers and emulsifier refer to the total amount of monomers in the copolymer.