Disclosed pressure sensitive adhesive compositions, having enhanced heat resistance, obtained by the emulsion polymerization of (a) one or more acrylic acid ester or (meth)acrylate acid ester(s), (b) one or more hydroxyl functional (meth)acrylic monomer and (c) one or more ureido substituted (meth)acrylate monomers(s).

There are provided an active energy ray-curable composition containing a polymerizable compound represented by General Formula (1), a polymerizable compound represented by General Formula (2), and a photopolymerization initiator, and an ink composition for inkjet recording use.
CH.sub.2CR.sub.1COOR.sub.2OCHCHR.sub.3(1)
(In Formula (1), R.sub.1 represents a hydrogen atom or a methyl group, R.sub.2 represents an organic residue having 2 to 20 carbon atoms, and R.sub.3 represents a hydrogen atom or an organic residue having 1 to 11 carbon atoms.) ##STR00001##
(In Formula (2), each of R.sub.4 and R.sub.5 independently represents a hydrogen atom or a methyl group, each of R.sub.6a, R.sub.6b, and R.sub.6c independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and m+n represents an integer of 0 to 4.).

There are provided an active energy ray-curable composition containing a polymerizable compound represented by General Formula (1), a polymerizable compound represented by General Formula (2), and a photopolymerization initiator, and an ink composition for inkjet recording use.
CH.sub.2CR.sub.1COOR.sub.2OCHCHR.sub.3(1)
(In Formula (1), R.sub.1 represents a hydrogen atom or a methyl group, R.sub.2 represents an organic residue having 2 to 20 carbon atoms, and R.sub.3 represents a hydrogen atom or an organic residue having 1 to 11 carbon atoms.) ##STR00001##
(In Formula (2), each of R.sub.4 and R.sub.5 independently represents a hydrogen atom or a methyl group, each of R.sub.6a, R.sub.6b, and R.sub.6c independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and m+n represents an integer of 0 to 4.).

A vinyl ester latex is provided, comprising: 20-80 wt % structural units of monoethylenically unsaturated vinyl alkanoate: 20-80 wt % structural units of monoethylenically unsaturated carboxylic acid functionalized vinyl ester: 0-5 wt % structural units of multiethylenically unsaturated crosslinker: 0-20 wt % structural units of an other monoethylenically unsaturated monomer, wherein the other monoethylenically unsaturated monomer is different from the monoethylenically unsaturated vinyl alkanoate and the monoethylenically unsaturated carboxylic acid functionalized vinyl ester; wherein the vinyl ester latex contains <10 wt % structural units of monoethylenically unsaturated dicarboxylic acid having 4-6 carbon atoms, alkali metal salts thereof, ammonium salts thereof and mixtures thereof: wherein the vinyl ester latex contains <5 mol % structural units of anhydride of a dicarboxylic acid: wherein the vinyl ester latex contains <1.2 wt % structural units of 2-acrylamido-2-methyl-propanesulfonic acid; and wherein the vinyl ester latex contains <10) wt % structural units of monoethylenically unsaturated alkyl acrylate monomer containing 2-10 carbon atoms.

A vinyl ester latex is provided, comprising: 20-80 wt % structural units of monoethylenically unsaturated vinyl alkanoate: 20-80 wt % structural units of monoethylenically unsaturated carboxylic acid functionalized vinyl ester: 0-5 wt % structural units of multiethylenically unsaturated crosslinker: 0-20 wt % structural units of an other monoethylenically unsaturated monomer, wherein the other monoethylenically unsaturated monomer is different from the monoethylenically unsaturated vinyl alkanoate and the monoethylenically unsaturated carboxylic acid functionalized vinyl ester; wherein the vinyl ester latex contains <10 wt % structural units of monoethylenically unsaturated dicarboxylic acid having 4-6 carbon atoms, alkali metal salts thereof, ammonium salts thereof and mixtures thereof: wherein the vinyl ester latex contains <5 mol % structural units of anhydride of a dicarboxylic acid: wherein the vinyl ester latex contains <1.2 wt % structural units of 2-acrylamido-2-methyl-propanesulfonic acid; and wherein the vinyl ester latex contains <10) wt % structural units of monoethylenically unsaturated alkyl acrylate monomer containing 2-10 carbon atoms.