The object of the present invention is to provide a hard coating composition for a metal substrate, including a film-forming resin component which contains a urethane (meth)acrylate obtained by reacting a polyisocyanate compound, a polyol, and a (meth)acrylate monomer having a hydroxyl group, wherein the polyisocyanate compound is hydrogenated xylylene diisocyanate and/or dicyclohexylmethane diisocyanate.

The present invention relates to a polyurethane composite material, comprising a polyurethane resin matrix prepared from a polyurethane composition, and a reinforcement material, wherein the polyurethane composition comprises: A) an isocyanate component comprising one or more organic polyisocyanates; B) an isocyanate-reactive component comprising: b1) one or more organic polyols having an amount of 21-60 wt. % based on 100% by weight of the polyurethane composition; b2) one or more (meth)acrylates comprising hydroxyl groups; and C) a radical reaction initiator; wherein the polyurethane resin matrix is prepared under such reaction conditions that the polyurethane composition undergoes addition polymerization reaction of isocyanate groups and hydroxyl groups and radical polymerization reaction simultaneously. The present invention further relates to the preparation process of the polyurethane composite material.

An object of the present invention is to provide a photocurable sheet-type adhesive composition for optical use, which is used for bonding cover glass and a touch panel, a touch panel and a display module, or the like, and has high appearance reliability and storage stability even under high temperature and high humidity. The present invention is a photocurable sheet-shape adhesive for optical use, which contains the following components (A) to (D): (A) 100 parts by mass of a urethane (meth)acrylate oligomer having a weight average molecular weight of 20,000 to 100,000; (B) 3 to 70 parts by mass of a phenoxy resin having a glass transition temperature of 50 to 120 C.; (C) 0.1 to 10 parts by mass of a photopolymerization initiator; and (D) 1 to 50 parts by mass of a (meth)acrylate monomer which has 8 to 30 repeated blocks having an ether linkage in the molecule and containing at least one (meth)acryloyl group in the molecule.

An object of the present invention is to provide a photocurable sheet-type adhesive composition for optical use, which is used for bonding cover glass and a touch panel, a touch panel and a display module, or the like, and has high appearance reliability and storage stability even under high temperature and high humidity. The present invention is a photocurable sheet-shape adhesive for optical use, which contains the following components (A) to (D): (A) 100 parts by mass of a urethane (meth)acrylate oligomer having a weight average molecular weight of 20,000 to 100,000; (B) 3 to 70 parts by mass of a phenoxy resin having a glass transition temperature of 50 to 120 C.; (C) 0.1 to 10 parts by mass of a photopolymerization initiator; and (D) 1 to 50 parts by mass of a (meth)acrylate monomer which has 8 to 30 repeated blocks having an ether linkage in the molecule and containing at least one (meth)acryloyl group in the molecule.

A compound capable of increasing the scratch resistance of, for instance, a hard-coat agent and a resin composition for a coating agent containing the compound are shown. The silicon compound of the present application is a silicon compound (a) represented by formula (I), R.sub.1 is a C.sub.3 or C.sub.4 alkylene group, X is a group selected from the group consisting of formula (II) to formula (III) of the specification, n is an integer of 0 or 1, Y is a group having a (meth)acrylate group selected from the group consisting of formula (IV) to formula (VI) of the specification, and R.sub.2 is hydrogen or a methyl group. If the silicon compound (a) and a cured resin are used together, then scratch resistance thought to be obtained from stress relief can be significantly increased.

An problem of the present invention is to provide to a (meth)acrylamide-based urethane oligomer which has excellent compatibility with organic solvents, general purpose acrylic monomers and oligomers, and a high curing speed to active energy rays, and to provide an active energy ray curable resin composition which contains the urethane oligomer, has excellent adhesion, moisture resistance and surface curability, and has low curing shrinkage, and a formed product thereof

[Means for Solution]

By using a (meth)acrylamide-based urethane oligomer of the present invention which has a carbonate skeleton, a diene-based skeleton or a hydrogenated diene-based skeleton in the molecule, one or more (meth)acrylamide groups and a component having a molecular weight of less than 1,000 (excluding a (meth)acrylamide compound (A) having a hydroxyl group) at a content of 5% by weight or less, it is possible to obtain a urethane oligomer which has excellent compatibility with organic solvents, general purpose acrylic monomers and oligomers, and a high curability and to obtain an active energy ray curable resin composition which contains the urethane oligomer and has excellent adhesion, tack resistance, moisture resistance and shrinkage resistance.

The present invention relates to curable polyurethane polymers made from renewable materials. In particular isosorbide derived from glucose is used. These renewable materials may be formed into curable polyurethane polymer compositions having different chemical functionalities and cure mechanisms.

The disclosure describes a polymerizable liquid that includes a reactive oligomer and a reactive monomer. The polymerizable liquid is an energy polymerizable liquid hardenable by a single reaction mechanism forming a Photoplastic material. The disclosure further describes a method of producing the Photoplastic material and articles that can be made from the Photoplastic material.