The present invention relates to a radiation-curable aqueous coating composition comprising a polyurethane A comprising as building blocks at least: (a) a polyisocyanate(s) containing at least two cyclic groups, (b) a non-cyclic aliphatic diisocyanate(s) whereby the non-cyclic aliphatic group connecting the two isocyanate groups has from 4 to 36 carbon atoms, and (c) a component(s) containing an isocyanate-reactive group(s), whereby the summed amount of (a) and (b) is 10 to 60 wt. %, relative to the total weight amount of components used to prepare the polyurethane A; and optionally radiation-curable diluent; whereby the weight ratio between (a) and (b) is in the range from 50:50 to 99:1; and whereby the ethylenically unsaturated bond concentration of the coating composition is in the range from 0.5 to 6 milliequivalents per g of polyurethane A and radiation-curable diluent.

The present invention relates to a radiation-curable aqueous coating composition comprising a polyurethane A comprising as building blocks at least: (a) a polyisocyanate(s) containing at least two cyclic groups, (b) a non-cyclic aliphatic diisocyanate(s) whereby the non-cyclic aliphatic group connecting the two isocyanate groups has from 4 to 36 carbon atoms, and (c) a component(s) containing an isocyanate-reactive group(s), whereby the summed amount of (a) and (b) is 10 to 60 wt. %, relative to the total weight amount of components used to prepare the polyurethane A; and optionally radiation-curable diluent; whereby the weight ratio between (a) and (b) is in the range from 50:50 to 99:1; and whereby the ethylenically unsaturated bond concentration of the coating composition is in the range from 0.5 to 6 milliequivalents per g of polyurethane A and radiation-curable diluent.

The present invention relates to a pigmented aqueous basecoat material including a polyether-based reaction product which is preparable by reaction of (a) at least one carboxy-functional component which is preparable by esterification reaction of at least one dihydroxycarboxylic acid (a1) with at least one dicarboxylic acid (a2) and/or the anhydride of a dicarboxylic acid (a2), the components (a1) and (a2) being used in a molar ratio of 0.5/3.0 to 1.7/1.8, with (b) at least one polyether of a general structural formula (I) ##STR00001##
in which R is a C.sub.3 to C.sub.6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 500 to 5000 g/mol, the components (a) and (b) being used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7, and the resulting reaction product possessing an acid number of 10 to 50 mg KOH/g.

The present invention relates to a pigmented aqueous basecoat material including a polyether-based reaction product which is preparable by reaction of (a) at least one carboxy-functional component which is preparable by esterification reaction of at least one dihydroxycarboxylic acid (a1) with at least one dicarboxylic acid (a2) and/or the anhydride of a dicarboxylic acid (a2), the components (a1) and (a2) being used in a molar ratio of 0.5/3.0 to 1.7/1.8, with (b) at least one polyether of a general structural formula (I) ##STR00001##
in which R is a C.sub.3 to C.sub.6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 500 to 5000 g/mol, the components (a) and (b) being used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7, and the resulting reaction product possessing an acid number of 10 to 50 mg KOH/g.

Coating compositions are described including silica nanoparticles functionalized with an alkenyl silane, a dispersing agent, and a compound including a polyethylene oxide segment containing at least one hydroxyl group, at least one silane, and optionally a hydrophobic group. The coating compositions further include at least two multifunctional (meth) acrylate monomers. Also described are articles including the dried and cured coating composition disposed on a substrate. The articles exhibit anti-fog characteristics and often also mechanical durability.

Coating compositions are described including silica nanoparticles functionalized with an alkenyl silane, a dispersing agent, and a compound including a polyethylene oxide segment containing at least one hydroxyl group, at least one silane, and optionally a hydrophobic group. The coating compositions further include at least two multifunctional (meth) acrylate monomers. Also described are articles including the dried and cured coating composition disposed on a substrate. The articles exhibit anti-fog characteristics and often also mechanical durability.

A gas barrier film has a support, an inorganic layer and an organic layer on one surface of the support, and a light diffusion layer containing a binder and a light diffusion agent on the other surface of the support. The binder has a graft copolymer which has an acryl polymer as a main chain and a urethane polymer or a urethane oligomer having an acryloyl group terminal as a side chain, an acryl polymer which has methacrylate as a side chain, and a graft copolymer which has an acryl polymer as a main chain and a urethane polymer or a urethane oligomer having a polycarbonate group terminal as a side chain.

A gas barrier film has a support, an inorganic layer and an organic layer on one surface of the support, and a light diffusion layer containing a binder and a light diffusion agent on the other surface of the support. The binder has a graft copolymer which has an acryl polymer as a main chain and a urethane polymer or a urethane oligomer having an acryloyl group terminal as a side chain, an acryl polymer which has methacrylate as a side chain, and a graft copolymer which has an acryl polymer as a main chain and a urethane polymer or a urethane oligomer having a polycarbonate group terminal as a side chain.

A resin composition comprises a base resin containing an urethane (meth)acrylate oligomer, a monomer having a phenoxy group, and a photopolymerization initiator, and hydrophobic inorganic oxide particles, wherein the viscosity is 300 mPa.Math.s or more and 4200 mPa.Math.s or less at 45 C. and the content of the monomer having a phenoxy group is 1% by mass or more and 30% by mass or less based on the total amount of the base resin.

A resin composition comprises a base resin containing an urethane (meth)acrylate oligomer, a monomer having a phenoxy group, and a photopolymerization initiator, and hydrophobic inorganic oxide particles, wherein the viscosity is 300 mPa.Math.s or more and 4200 mPa.Math.s or less at 45 C. and the content of the monomer having a phenoxy group is 1% by mass or more and 30% by mass or less based on the total amount of the base resin.