The present invention is a method for producing a polyfunctional polymer that contains a structural unit having a urethane bond and a polymerizable unsaturated bond in a side chain, and is characterised by including a reaction process in which a polymer (P) containing a structural unit (a) having a hydroxy group in a side chain and a monomer (M) having an isocyanate group and a polymerizable unsaturated bond are reacted in the presence of a bismuth carboxylate.

Disclosed is a curable resin composition that includes radical polymerizable monomers including a monofunctional radical polymerizable monomer, a linear or branched polymer containing a polyoxyalkylene chain, and a radical polymerization initiator.

The present invention provides a stretchable film that is excellent in stretch and strength and water repellency on the film surface, and a method for forming the stretchable film.

The present invention was accomplished by a stretchable film including a resin having a branched siloxane bond having 3 to 11 silicon atoms on a side chain and having a urethane bond on a main chain.

The disclosure describes a curable composition comprising a) a solute (meth)acryloyl oligomer having a plurality of pendent, ethylenically unsaturated, free-radically polymerizable functional groups and nucleophilic, hydrophilic groups, a M.sub.w of 5 k to 30 k, a T.sub.g<20 C.; b) a solvent monomer component; a chain transfer agent, and a photoinitiator. The curable composition may be used as an adhesive in optical applications.

The composition includes an acrylic monomer having a carboxylic acid group, an acrylic monomer having a hydroxyl group, at least one of an alkyl acrylate or alkyl methacrylate, and from 15 to 22 percent by weight of a compound composed of divalent segments L and at least two X groups. The divalent segments L are represented by formula L. Each segment L is independently directly bonded to two secondary N atoms, two tertiary N atoms, or a secondary and a tertiary N atom. Each R.sup.1 represents an alkylene group having from 1 to 4 carbon atoms, and at least some of the R.sup.1 groups are CH.sub.2CH.sub.2CH.sub.2CH.sub.2. Each X group is independently represented by the formula CH.sub.2?C(R)C(O)OVWC(O). Articles and methods using the composition are also described.

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Embodiments of this disclosure provide a resin composition and an disclosure thereof. The resin composition includes a polyurethane acrylate and a curing monomer, the curing monomer includes a compound containing a free radical polymerizable group and/or a compound containing a moisture curable group, and a weight-average molecular weight of the curing monomer is greater than or equal to 300.

The present invention provides a hydrophilic film for an ex vivo membrane, which includes: a substrate; and a hydrophilic coating located on at least one surface of the substrate and formed by a hydrophilic composition, in which the hydrophilic composition includes: (a) a reactive adhesive; (b) a surfactant having reactivity; and (c) optionally a polyol.

A synthetic polymer film (34A), (34B) having a surface which has a plurality of raised portions (34Ap), (34Bp), wherein a two-dimensional size of the plurality of raised portions (34Ap), (34Bp) is in a range of more than 20 nm and less than 500 nm when viewed in a normal direction of the synthetic polymer film (34A), (34B), the surface having a microbicidal effect, and a concentration of a total of a nitrogen element which is a constituent of a primary amine and a nitrogen element which is a constituent of a secondary amine is not less than 0.29 at %, and a number of moles of an ethylene oxide unit included in one gram is more than 0.0020 and not more than 0.0080.

A resin composition capable of securely adhering multiple members in a short time without having to establish a long aging process. The resin composition including: (1) a urethane (meth)acrylate; (2) at least one selected from a group of (meth)acrylates having a phosphate group, (meth)acrylic silane coupling agents, and (meth)acrylates having an isocyanate group; and (3) a (meth)acrylate having an epoxy group.

Disclosed is a simplified process for formation of polyisobutylene functionalized with at least one terminal primary or secondary alcohol. The process comprises subjecting an olefin functional polyisobutylene, butyl rubber, or mixtures thereof to ozonation and reduction thereby forming mono-alcohol and diol functional polyisobutylene. The formed functional polyisobutylenes can serve as precursors for many other functionalized polyisobutylenes including urethane polyisobutylenes, urethane polyisobutylenes capped with (meth)acrylate functions, and (meth)acrylate capped polyisobutylenes.