The present invention provides a polymerizable composition containing a specific polymerizable compound and a fluorosurfactant having a specific polyoxyalkylene skeleton and having specific molecular weight. The invention also provides an optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable composition of the present invention. The present invention is useful because, when an optically anisotropic body is produced by photo-polymerization of the polymerizable composition, three features including the leveling properties of the surface of the optically anisotropic body, offset onto the substrate, and liquid crystal alignment can be improved simultaneously.

The present invention provides a polymerizable composition containing a specific polymerizable compound and a fluorosurfactant having a specific polyoxyalkylene skeleton and having specific molecular weight. The invention also provides an optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable composition of the present invention. The present invention is useful because, when an optically anisotropic body is produced by photo-polymerization of the polymerizable composition, three features including the leveling properties of the surface of the optically anisotropic body, offset onto the substrate, and liquid crystal alignment can be improved simultaneously.

Provided are: a core-corona polymer particle excellent in emulsion stability and feeling of use, and a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising the particle. The present invention provides a core-corona polymer particle obtained by radical-polymerizing a polyethylene oxide macromonomer represented by the formula (1) and one or two or more of hydrophobic monomers represented by the formulas (2) and (3) under the following conditions (A) to (D).

A curable primer composition comprising:(a) a curable component such as methacrylate; (b) a cure initiating component; and (c) a polymer material selected from the group consisting of: (i) block polymers represented by S-A-S where S is polystyrene and A stands for a polymer or copolymer formed from one or more of ethylene, propylene, butylene, and styrene, which are optionally substituted with carboxylic acid or maleic anhydride; provided that when A comprises styrene then A is a copolymer of styrene with at least one of ethylene, propylene and butylene, and is optionally substituted with carboxylic acid or maleic anhydride; and (ii) polystyrene-poly(ethylene-propylene) (“SEP”); and (iii) any combination of said polymer materials. The composition is applied to a part then photocured. It is dry to touch. Thereafter a thermoplastic material such as a polyolefin is overmolded (e.g. injection molded) over the applied composition. It enhances bond strength of the polyolefin to the part.

A curable primer composition comprising:(a) a curable component such as methacrylate; (b) a cure initiating component; and (c) a polymer material selected from the group consisting of: (i) block polymers represented by S-A-S where S is polystyrene and A stands for a polymer or copolymer formed from one or more of ethylene, propylene, butylene, and styrene, which are optionally substituted with carboxylic acid or maleic anhydride; provided that when A comprises styrene then A is a copolymer of styrene with at least one of ethylene, propylene and butylene, and is optionally substituted with carboxylic acid or maleic anhydride; and (ii) polystyrene-poly(ethylene-propylene) (“SEP”); and (iii) any combination of said polymer materials. The composition is applied to a part then photocured. It is dry to touch. Thereafter a thermoplastic material such as a polyolefin is overmolded (e.g. injection molded) over the applied composition. It enhances bond strength of the polyolefin to the part.

A copolymer may be obtained by polymerization reaction(s) using an anionic monomer and two polyethoxylated monomers. Such copolymers may have a polydispersity index, determined by size exclusion chromatography (SEC), of less than 3, and be obtained by at least one radical polymerisation reaction in water at a temperature ranging from 10 to 90° C. A composition may include such copolymers. Such copolymers may be prepared and use as a superplasticizer for a hydraulic binder composition.

A copolymer may be obtained by polymerization reaction(s) using an anionic monomer and two polyethoxylated monomers. Such copolymers may have a polydispersity index, determined by size exclusion chromatography (SEC), of less than 3, and be obtained by at least one radical polymerisation reaction in water at a temperature ranging from 10 to 90° C. A composition may include such copolymers. Such copolymers may be prepared and use as a superplasticizer for a hydraulic binder composition.

The method for producing a resin composition for a secondary coating of an optical fiber comprises a step of reacting a polyol, a diisocyanate and a hydroxyl group-containing (meth)acrylate in the presence of a (meth)acrylate not having a hydroxyl group to obtain a mixture of urethane (meth)acrylate and the (meth)acrylate not having a hydroxyl group, and a step of adding a photopolymerization initiator to the mixture to obtain a resin composition, and a hydroxyl value of the (meth)acrylate not having a hydroxyl group is 12.0 mgKOH/g or less.

The method for producing a resin composition for a secondary coating of an optical fiber comprises a step of reacting a polyol, a diisocyanate and a hydroxyl group-containing (meth)acrylate in the presence of a (meth)acrylate not having a hydroxyl group to obtain a mixture of urethane (meth)acrylate and the (meth)acrylate not having a hydroxyl group, and a step of adding a photopolymerization initiator to the mixture to obtain a resin composition, and a hydroxyl value of the (meth)acrylate not having a hydroxyl group is 12.0 mgKOH/g or less.

A non-fluorinated copolymer composition containing (1) a fluorine-free copolymer and (2) acetylene alcohol. The non-fluorinated copolymer (1) has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group having 7 to 40 carbon atoms; and a repeating unit formed from (c) an acrylic monomer having an olefinic carbon-carbon double bond and an ion donating group. Also disclosed is an oil-resistant agent containing a fluorine-free composition including (1) a fluorine-free copolymer, and (2) an acetylene alcohol, wherein the fluorine-free copolymer (1) has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group having 7 to 40 carbon atoms; an oil-resistant agent kit; a method for producing the fluorine-free copolymer; an oil-resistant paper; and a method for eliminating foam during treatment of paper with the fluorine-free copolymer composition.