Patent ID: 8507605

Claim:
A latex comprising: a mixture of microgels and sol polymers of an acrylic copolymer, wherein the M c of the acrylic copolymer is greater than or equal to the M e thereof; the M w of the sol polymers is greater than or equal to twice the M e of the acrylic copolymer; the amount of sol polymer having a M w less than twice the M e of the acrylic copolymer is about 20 wt % or less than 20 wt %; wherein the acrylic copolymer comprises copolymerized monomers of a low T g acrylic monomer, a high T g monomer, and a hydroxyl-containing acrylic monomer; and wherein the acrylic copolymer further comprises a cross-linker wherein the cross-linker is a copolymerized acrylic monomer containing a second carbon-carbon double bond.