The present invention relates to novel compounds, particularly to compounds comprising a photoactive unit, said novel compounds being particularly suitable for compositions and ophthalmic devices as well as to compositions and ophthalmic devices comprising such compounds.

The present invention relates to novel compounds, particularly to compounds comprising a photoactive unit, said novel compounds being particularly suitable for compositions and ophthalmic devices as well as to compositions and ophthalmic devices comprising such compounds.

An object of the present invention is to provide a crystalline radically polymerizable composition for fixing a magnet of a rotating electric machine rotor core, which is excellent in handleability around room temperature, excellent in fluidity from the injection step to the curing step, and excellent in strength of the cured product.

A crystalline radical polymerizable composition for fixing a magnet of a rotating electric machine rotor core of the present invention is characterized by fixing the magnet inserted in a magnet accommodating portion provided in a rotor core of a rotating electric machine formed of a laminated steel sheet and the laminated steel sheet, wherein the crystalline radical polymerizable composition contains at least a crystalline radical polymerizable compound A, an inorganic filler B, a silane coupling agent C, and a radical polymerization initiator D, wherein the crystalline radical polymerizable compound A is solid at 23° C. and has the property capable of imparting fluidity by heating, wherein the inorganic filler B is contained in an amount of 50 to 90% by mass based on the total amount of the crystalline radical polymerizable composition, and the melt viscosity of the crystalline radical polymerization measured by an enhanced flow tester is 500 Pa.Math.s or more at 90° C. and a shear velocity of 1/s.

An object of the present invention is to provide a crystalline radically polymerizable composition for fixing a magnet of a rotating electric machine rotor core, which is excellent in handleability around room temperature, excellent in fluidity from the injection step to the curing step, and excellent in strength of the cured product.

A crystalline radical polymerizable composition for fixing a magnet of a rotating electric machine rotor core of the present invention is characterized by fixing the magnet inserted in a magnet accommodating portion provided in a rotor core of a rotating electric machine formed of a laminated steel sheet and the laminated steel sheet, wherein the crystalline radical polymerizable composition contains at least a crystalline radical polymerizable compound A, an inorganic filler B, a silane coupling agent C, and a radical polymerization initiator D, wherein the crystalline radical polymerizable compound A is solid at 23° C. and has the property capable of imparting fluidity by heating, wherein the inorganic filler B is contained in an amount of 50 to 90% by mass based on the total amount of the crystalline radical polymerizable composition, and the melt viscosity of the crystalline radical polymerization measured by an enhanced flow tester is 500 Pa.Math.s or more at 90° C. and a shear velocity of 1/s.

A method of forming a photo-cured layer on a substrate can include applying a first photocurable composition overlying a first region of the substrate and a second photocurable composition overlying a second region of the substrate and photo-curing the applied compositions, wherein the first region is a center region of the substrate and the second region is an edge region of the substrate, and the second photocurable composition has a higher vapor pressure than the first photocurable composition. The method can have the advantage that the forming of an extrusion within the edge region of the photo-cured layer can be avoided or being kept very low.

A method of forming a photo-cured layer on a substrate can include applying a first photocurable composition overlying a first region of the substrate and a second photocurable composition overlying a second region of the substrate and photo-curing the applied compositions, wherein the first region is a center region of the substrate and the second region is an edge region of the substrate, and the second photocurable composition has a higher vapor pressure than the first photocurable composition. The method can have the advantage that the forming of an extrusion within the edge region of the photo-cured layer can be avoided or being kept very low.

The present teachings are directed at 1,1-disubstituted alkene monomers (e.g., methylene beta-ketoester monomers), methods for producing the same, polymerizable compositions including a methylene beta-ketoester monomer, and polymers, compositions and products formed therefrom. The monomer preferably is a high purity monomer. In the method for producing the methylene beta-ketoesters of the invention, a beta-ketoester may be reacted with a source of formaldehyde. The methylene beta-ketoester monomers may be used in monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).

The present teachings are directed at 1,1-disubstituted alkene monomers (e.g., methylene beta-ketoester monomers), methods for producing the same, polymerizable compositions including a methylene beta-ketoester monomer, and polymers, compositions and products formed therefrom. The monomer preferably is a high purity monomer. In the method for producing the methylene beta-ketoesters of the invention, a beta-ketoester may be reacted with a source of formaldehyde. The methylene beta-ketoester monomers may be used in monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).

Plant oil-based compounds are provided which possess both low viscosity and high reactive functionality. These compounds are useful in coating and composite applications, as well as related methods. Exemplary compounds can be produced by transesterification of a plant oil triglyceride with a nucleophile reactant, such as a vinyl-functional alcohol, to yield reactive fatty acid-containing monomers.

Plant oil-based compounds are provided which possess both low viscosity and high reactive functionality. These compounds are useful in coating and composite applications, as well as related methods. Exemplary compounds can be produced by transesterification of a plant oil triglyceride with a nucleophile reactant, such as a vinyl-functional alcohol, to yield reactive fatty acid-containing monomers.