Provided is an aqueous coating composition that can exhibit high coating film performance even when cured at a relatively low temperature. The present invention pertains to an aqueous coating composition comprising (A) a hydroxyl group-containing resin and (B) a blocked polyisocyanate compound. The weight average molecular weight of the blocked polyisocyanate compound (B) is in a range of 20,000-200,000.

A photocurable composition is provided. The photocurable composition includes: a urethane acrylamide oligomer derived from a first urethane prepolymer having an isocyanate end group and a polar group-containing acrylamide; a urethane acrylate oligomer derived from a second urethane prepolymer having an isocyanate end group and a polar group-containing (meth)acrylate; and an amide group-containing acrylic polymer derived from acrylamide and a polar group-containing (meth)acrylate.

A semicarbazide composition contains a semicarbazide compound (A1) derived from a hydrazine and an isocyanate compound (a1) having an isocyanate group, and a semicarbazide compound (B1) derived from a hydrazine and an isocyanate compound (b1) having an isocyanate group and having a different structure from the isocyanate compound (a1), wherein the absolute value of the difference in the solubility parameters of the isocyanate compound (a1) and the isocyanate compound (b1) is at least 0.15 but not more than 2.10. A method for producing a semicarbazide composition includes, in sequence, a step 2-1 of reacting a hydrazine and an isocyanate compound (a2) having at least one cyclic structure within the molecule to obtain a semicarbazide compound (A2), and a step 2-2 of reacting a hydrazine and an isocyanate compound (b2) not having a cyclic structure within the molecule to obtain a semicarbazide compound (B2).

The present invention provides a coating film including a structure represented by formula (I)-1, a multilayer coating film including said coating film and a method for producing the same.

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The present invention is a hydrophilic polyurethane end-capped with a superabsorbent polymer.

A photocurable composition is provided. The photocurable composition includes: a urethane acrylamide oligomer derived from a first urethane prepolymer having an isocyanate end group and a polar group-containing acrylamide; a urethane acrylate oligomer derived from a second urethane prepolymer having an isocyanate end group and a polar group-containing (meth)acrylate; and an amide group-containing acrylic polymer derived from acrylamide and a polar group-containing (meth)acrylate.

Adhesives comprising an aqueous polymer dispersion, at least one cross-linker, and optional additives, are provided for film lamination. The adhesives comprise a polymer dispersion comprising at least one salt, at least one ethylenically unsaturated monomer with at least one keto or aldehyde group, and at least one compound with at least two functional groups that are capable to react with the keto or aldehyde groups. The adhesives advantageously provide a strong connection between a transparent plastic film or foil and a substrate such as paper or cardboard while being safer and cheaper.

A polymer having N-functional imide groups is prepared from reactants that include: (a) an ethylenically unsaturated anhydride or diacid monomer; (b) at least one co-monomer that is different from (a) having an ethylenically unsaturated group that is reactive with (a); and at least one compound reactive with the anhydride or diacid functional groups of (a) that is represented by Chemical Formula I: H.sub.2NR.sup.1. With respect to Chemical Formula I, R.sup.1 is selected from NH.sub.2 or OH. Pigment dispersions and coating compositions are also prepared with the polymers having N-functional imide groups.

This adhesive includes a copolymer that includes monomer units represented by (a-1), (a-2), (a-3), and (a-4) described below, and the following content is contained among all of the monomers which constitute the copolymer: (a-1) 5 to 45 wt % of an alkyl(meth)acrylate; (a-2) 0.01 to 10 wt % of a (meth)acrylate having a hydroxyl group or an allyl ether having a hydroxyl group; (a-3) 50 to 78 wt % of an alkoxyalkyl (meth)acrylate; (a-4) 1 to 25 wt % of an alkoxypolyalkylene glycol mono(meth)acrylate or an alkoxypolyalkylene glycol allyl ether.

A polymer having N-functional imide groups is prepared from reactants that include: (a) an ethylenically unsaturated anhydride or diacid monomer; (b) at least one co-monomer that is different from (a) having an ethylenically unsaturated group that is reactive with (a); and at least one compound reactive with the anhydride or diacid functional groups of (a) that is represented by Chemical Formula I: H.sub.2NR.sup.1. With respect to Chemical Formula I, R.sup.1 is selected from NH.sub.2 or OH. Pigment dispersions and coating compositions are also prepared with the polymers having N-functional imide groups.