Waterborne core-shell latex polymers
First Claim
1. A core-shell latex composition comprising latex particles, each latex particle comprising:
- (a) a core comprising a (co)polymer comprising (meth) acrylate ester wherein the (co)polymer has a glass transition temperature of about -50°
C. to about 105°
C.;
(b) a shell, surrounding the core, comprising a copolymer, wherein the copolymer consists essentially of;
(i) a nitrogen-bearing ethylenically-unsaturated free-radically polymerizable monomer;
(ii) at least one (meth)acrylate ester of about a C1 to about a C14 alcohol; and
(iii) an optional ethylenically-unsaturated free-radically polymerizable silane monomer;
wherein the nitrogen-bearing ethylenically-unsaturated free-radically polymerizable monomer comprises from about 15 to about 60 percent by weight of the shell and further wherein the core comprises from about 40 to about 85 percent or the weight of the total core-shell latex particles;
wherein each latex particle has only one shell.
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Accused Products
Abstract
The present invention provides:
A core-shell insert latex composition comprising latex particles, each latex particle comprising:
(a) a core comprising a (co)polymer comprising (meth)acrylate ester;
(b) a shell, surrounding the core, comprising a copolymer, wherein the copolymer comprises:
(i) a nitrogen-bearing ethylenically-unsaturated free-radically polymerizable monomer;
(ii) at least one (meth)acrylate ester of about a C1 to about a C14 alcohol; and
(iii) an optional ethylenically-unsaturated free-radically polymerizable silane monomer; wherein the nitrogen-bearing ethylenically-unsaturated free-radically polymerizable monomer comprises from about 15 to about 60 percent by weight of the shell and further wherein the core comprises from about 40 to about 85 percent of the weight of the total core-shell latex particle.
The invention also relates to the use of the core-shell latex composition as a binder or primer for coatings and adhesives.
72 Citations
17 Claims
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1. A core-shell latex composition comprising latex particles, each latex particle comprising:
-
(a) a core comprising a (co)polymer comprising (meth) acrylate ester wherein the (co)polymer has a glass transition temperature of about -50°
C. to about 105°
C.;(b) a shell, surrounding the core, comprising a copolymer, wherein the copolymer consists essentially of; (i) a nitrogen-bearing ethylenically-unsaturated free-radically polymerizable monomer; (ii) at least one (meth)acrylate ester of about a C1 to about a C14 alcohol; and (iii) an optional ethylenically-unsaturated free-radically polymerizable silane monomer;
wherein the nitrogen-bearing ethylenically-unsaturated free-radically polymerizable monomer comprises from about 15 to about 60 percent by weight of the shell and further wherein the core comprises from about 40 to about 85 percent or the weight of the total core-shell latex particles;
wherein each latex particle has only one shell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification