Acrylate-containing polymer blends
AssigneeMinnesota Mining and Manufacturing Company
InventorJames D. Groves
Life of this patent
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Abstract
A polymer blend that comprising: (a) a modified block copolymer comprising (i) a polystyrene block and (ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block being modified with an average of one or more carboxyl groups; and (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which: (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and (ii) at least one of the monomers is a nitrogen-containing monomer; and a method of making and using the polymer blend.
Claims14
A polymer blend comprising
- (a) a block copolymer comprising
- (i) a polystyrene block and
- (ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block containing an average of one or more carboxyl groups;
- and
- (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which:
- (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and
- (ii) at least one of the monomers is a nitrogen-containing monomer selected from the group consisting of an
- N-vinyllactam and an N,N-dialkylacrylamide.
A method of preparing a polymer blend comprising physically blending:
- (a) a block copolymer comprising
- (i) a polystyrene block and
- (ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block containing an average of one or more carboxyl groups;
- and
- (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which:
- (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and
- (ii) at least one of the monomers is a nitrogen-containing monomer selected from the group consisting of an N-vinyllactam and an N,N-dialkylacrylamide.
A blend comprising a maleated styrene-ethylene/butylene styrene block copolymer and an iso-octyl acrylate/N-vinylcaprolactam/acrylic acid polymer.
Dependencies are inferred from the claim text.