Styrene-free unsaturated polyester resin and vinyl ester resin compositions are provided which contain low amounts of hazardous air pollutants, good mechanical and physical properties, and good corrosion resistant characteristics. The resin systems are such that minimal or no component is leachable after completion of the curing process. The resins are suitable for repair of sewer pipes and potable water pipe systems as part of a cured-in-place pipe application. Additionally, the invention is suitable for relining of storage tanks. A process for the manufacture of these resin compositions is also provided.

The present technology relates to a polymer comprising at least one ester repeating unit and one ether repeating unit for use in an electrochemical cell, particularly in electrochemical accumulators such as lithium batteries, sodium batteries, potassium batteries and lithium-ion batteries. More specifically, the use of this polymer as a solid polymer electrolyte (SPE), as a matrix for forming gel electrolytes, or as a binder in an electrode material are also contemplated.

A coating composition is prepared from an aqueous dispersion of a mixture of (i) urethane acrylate resin particles; (ii) acrylic resin particles; and (iii) a matting agent. A method of imparting stain resistance to a substrate, comprising applying the coating composition to at least a portion of the substrate.

A coating composition is prepared from an aqueous dispersion of a mixture of (i) urethane acrylate resin particles; (ii) acrylic resin particles; and (iii) a matting agent. A method of imparting stain resistance to a substrate, comprising applying the coating composition to at least a portion of the substrate.

A method of manufacturing a polymerizable composition is capable of imparting antibacterial properties and the like to a cured product of polymerizable composition without deteriorating an appearance of the cured product of the polymerizable composition. The method of manufacturing a polymerizable monomer wherein a solution, that a second polymerizable monomer is dissolved in a first solvent, is dispersed in a first polymerizable monomer, includes mixing the first polymerizable monomer, the second polymerizable monomer, and the first solvent. The first polymerizable monomer is a liquid, and the second polymerizable monomer is a solid.

The present invention provides a photocurable resin composition that has good fabricability, and that exhibits superior flexibility, fracture resistance, and water resistance in the form of a cured product. The present invention relates to a photocurable resin composition comprising: a urethanized (meth)acrylic compound (A); a mono(meth)acrylic acid ester compound (B) containing no urethane bond; and a photopolymerization initiator (C), the urethanized (meth)acrylic compound (A) being a (meth)acrylate comprising, per molecule, at least one kind of structure selected from the group consisting of a polyester, a polycarbonate, a polyurethane, a polyether, a poly-conjugated diene, and a hydrogenated poly-conjugated diene; and a urethane bond, the mono(meth)acrylic acid ester compound (B) containing no urethane bond comprising at least one selected from the group consisting of a mono(meth)acrylic acid ester compound (b-I) represented by general formula (I), and a mono(meth)acrylic acid ester compound (b-II) represented by general formula (II).

Described in preferred embodiments are UV curable coating compositions including a unique blend of aliphatic urethane acrylate resins. Also described are coated articles and methods for their production involving the use of the coating compositions.

A spectacle lens including a lens substrate and a photochromic layer, wherein the photochromic layer is a cured layer of a curable composition containing a photochromic compound and a plurality of curable compounds, a surface Martens hardness of the photochromic layer is 5.0 kgf/mm.sup.2 or more, and the plurality of curable compounds contain components (1) to (3) below: (1) neopentyl glycol di(meth)acrylate; (2) a curable compound having an L-scale Rockwell hardness of homopolymer of 60 or more; and (3) a curable compound having an L-scale Rockwell hardness of homopolymer of 40 or less.

A spectacle lens including a lens substrate and a photochromic layer, wherein the photochromic layer is a cured layer of a curable composition containing a photochromic compound and a plurality of curable compounds, a surface Martens hardness of the photochromic layer is 5.0 kgf/mm.sup.2 or more, and the plurality of curable compounds contain components (1) to (3) below: (1) neopentyl glycol di(meth)acrylate; (2) a curable compound having an L-scale Rockwell hardness of homopolymer of 60 or more; and (3) a curable compound having an L-scale Rockwell hardness of homopolymer of 40 or less.

The present invention relates to a polymerisable composition for bonding fibre units, in particular linear textiles such as filaments, yarns, twines or ropes, comprising at least one prepolymer having at least two polymerisable vinylidene groups, such as a polyurethane having at least two (meth)acrylate groups, at least one photoinitiator and at least one compound having at least one polymerisable vinylidene group with a weight average molecular weight of 70-800 g/mol. In addition, the present invention relates to a process for bonding fibre units, comprising applying the composition according to the invention to at least one fibre unit such as a filament, yarn, twine or rope and irradiation of the fibre unit thus obtained with radiation having a wavelength in the range of, for example, 100-450 nm.