Acrylic emulsion coatings for rubber articles
AssigneeAvery Dennison Corporation
InventorIvan Lee
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Abstract
There are provided powder-free polymer coated rubber articles in which at least one surface of the rubber article is coated with a non-tacky acrylic based emulsion copolymer formed by polymerization of at least one low surface energy monomer, at least one alkyl acrylate and at least one hard monomer. The copolymers are preferably formed by sequential polymerization. The polymer coatings can be stretched with the rubber without flaking.
Claims16
A rubber article having a coating deposited on a surface thereof from an aqueous suspension of an emulsion copolymer of from about 0.7 to about 20% by weight of at least one copolymerizable low surface energy monomer selected from the group consisting of reactive silicones, reactive fluorocarbons and reactive fatty acids esters, said low surface energy monomer having a functionality selected from vinyl, acrylic and methacrylic, from about 30 to about 85% by weight of at least one alkyl acrylate containing from 1 to about 10 carbon atoms in the alkyl group, the balance of the monomers comprising hard monomers, said hard monomers, when homopolymerized having a glass transition temperature greater than about 25.degree. C. and present in an amount sufficient to provide non-tacky acrylic based emulsion.
Dependencies are inferred from the claim text.