Provided is a prepeg resin composition, containing: a urethane (meth)acrylate (A) that is a reaction product of polyisocyanate (a1), polyol (a2), and hydroxy alkyl (meth)acrylate (a3); and a polymerization initiator (B), as an essential component, in which the polyisocyanate (a1) is at least one polyisocyanate selected from 2,4′-diphenyl methane diisocyanate, 4,4′-diphenyl methane diisocyanate, a carbodiimide modified product of 4,4′-diphenyl methane diisocyanate, and polymethylene polyphenyl polyisocyanate, and the polyol (a2) has an aromatic-ring and an oxyalkylene structure. The prepreg resin composition of the invention is excellent in workability and molding properties, and is capable of forming a molded article excellent in various physical properties such as external appearance and heat resistance, and thus, can be preferably used in a prepreg and a molded article thereof.

An adhesive member includes: a polymer derived from a resin composition including at least one (meth)acrylate monomer, at least one urethane (meth)acrylate oligomer, and at least one photoinitiator; a 180° peel force of about 2000 gf/25 mm to less than about 8000 gf/25 mm for a glass substrate at a temperature of about −20° C.; and a thermal expansion stress of about 0.1 N/mm.sup.2 to less than about 2 N/mm.sup.2 in accordance with changes in temperature from about −20° C. to about 60° C.

An adhesive member includes: a polymer derived from a resin composition including at least one (meth)acrylate monomer, at least one urethane (meth)acrylate oligomer, and at least one photoinitiator; a 180° peel force of about 2000 gf/25 mm to less than about 8000 gf/25 mm for a glass substrate at a temperature of about −20° C.; and a thermal expansion stress of about 0.1 N/mm.sup.2 to less than about 2 N/mm.sup.2 in accordance with changes in temperature from about −20° C. to about 60° C.

A resin composition includes at least one (meth)acrylate monomer, a plurality of bifunctional urethane (meth)acrylates, and at least one photoinitiator. The plurality of bifunctional urethane (meth)acrylates includes a first bifunctional urethane (meth)acrylate having a first weight average molecular weight, and a second bifunctional urethane (meth)acrylate having a second weight average molecular weight that is higher than the first weight average molecular weight. A first weight of the first bifunctional urethane (meth)acrylate is greater than or equal to a second weight of the second bifunctional urethane (meth)acrylate with respect to a total weight of the resin composition.

A resin composition includes at least one (meth)acrylate monomer, a plurality of bifunctional urethane (meth)acrylates, and at least one photoinitiator. The plurality of bifunctional urethane (meth)acrylates includes a first bifunctional urethane (meth)acrylate having a first weight average molecular weight, and a second bifunctional urethane (meth)acrylate having a second weight average molecular weight that is higher than the first weight average molecular weight. A first weight of the first bifunctional urethane (meth)acrylate is greater than or equal to a second weight of the second bifunctional urethane (meth)acrylate with respect to a total weight of the resin composition.

An anaerobically curable composition comprising: a liquid anaerobically curable component; a solid anaerobically curable component; a solid thermoplastic polyurethane resin having a molecular weight in the range of from 40,000 g/mol to 100,000 g/mol and a melting point in the range of from 40° C. to 80° C.; and a curing component for curing the anaerobically curable components.

Advantageously, the compositions of the invention are substantially solid and may be used as threadlockers.

An aqueous energy curable inkjet ink that includes (A) an emulsified water-insoluble photopolymerizable compound, (B) a resin, which may be (B1) a photopolymerizable resin or (B2) a non-photopolymerizable resin, (C) a polyether macromer-modified poly(meth)acrylate, and (D) at least 25 wt. % water, based on a total weight of the aqueous energy curable inkjet ink. A printed article including the aqueous energy curable inkjet ink in dried and cured form, and a method of forming a printed image with an inkjet printhead are also provided.

An aqueous energy curable inkjet ink that includes (A) an emulsified water-insoluble photopolymerizable compound, (B) a resin, which may be (B1) a photopolymerizable resin or (B2) a non-photopolymerizable resin, (C) a polyether macromer-modified poly(meth)acrylate, and (D) at least 25 wt. % water, based on a total weight of the aqueous energy curable inkjet ink. A printed article including the aqueous energy curable inkjet ink in dried and cured form, and a method of forming a printed image with an inkjet printhead are also provided.

The present invention relates to processes for the manufacture of aqueous polyurethane/acrylic hybrid dispersions that can be used as adhesives or coatings, are solvent free and have low VOC emissions, and are environmentally friendly. Also encompassed are the dispersions as such, compositions containing them and their use as coatings and adhesives.

Provided is method of making a three-dimensional object comprising polyurea, which may include: (a) dispensing a one part (1K) dual cure resin into a stereolithography apparatus, the resin comprising or consisting essentially of a photoinitiator, a reactive blocked polyisocyanate, optionally a catalyst such as a polyurethane blowing catalyst, and optionally a polyepoxide; (b) additively manufacturing from said resin an intermediate object comprising the light polymerization product of said reactive blocked polyisocyanate; (c) optionally cleaning said intermediate object; and (d) reacting said polymerization product in said intermediate with water in the presence of a catalyst such as a polyurethane blowing catalyst (which may be included in the resin, the water, or both) to generate polyamine in situ that sequentially reacts with the remainder of the polymerization product to form urea linkages and thereby produce a three-dimensional object comprising polyurea. Dual cure resins useful for the method are also provided.