A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an active hydrogen group-containing compound having four active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an active hydrogen group-containing compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.

A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an active hydrogen group-containing compound having four active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an active hydrogen group-containing compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.

Fabricating a high refractive index photonic device includes disposing a polymerizable composition on a first surface of a first substrate and contacting the polymerizable composition with a first surface of a second substrate, thereby spreading the polymerizable composition on the first surface of the first substrate. The polymerizable composition is cured to yield a polymeric structure having a first surface in contact with the first surface of the first substrate, a second surface opposite the first surface of the polymeric structure and in contact with the first surface of the second substrate, and a selected residual layer thickness between the first surface of the polymeric structure and the second surface of the polymeric structure in the range of 10 m to 1 cm. The polymeric structure is separated from the first substrate and the second substrate to yield a monolithic photonic device having a refractive index of at least 1.6.

Fabricating a high refractive index photonic device includes disposing a polymerizable composition on a first surface of a first substrate and contacting the polymerizable composition with a first surface of a second substrate, thereby spreading the polymerizable composition on the first surface of the first substrate. The polymerizable composition is cured to yield a polymeric structure having a first surface in contact with the first surface of the first substrate, a second surface opposite the first surface of the polymeric structure and in contact with the first surface of the second substrate, and a selected residual layer thickness between the first surface of the polymeric structure and the second surface of the polymeric structure in the range of 10 m to 1 cm. The polymeric structure is separated from the first substrate and the second substrate to yield a monolithic photonic device having a refractive index of at least 1.6.

The embodiments relate to a polythiol composition for a plastic optical lens and a polythiourethane-based plastic optical lens prepared therefrom. In the embodiments, a first polythiol compound having an ester group and a mercapto group only as a hydrogen-bondable functional group and a second polythiol compound having an ester group and a hydrogen-bondable functional group other than a mercapto group are used in an appropriate amount. Thus, it is possible to control the viscosity of a polymerizable composition at the initial stage of polymerization at a low temperature of 5 to 15 C. and to stabilize the rate of increase in the viscosity of the composition and the reaction rate thereof, thereby preventing the generation of striae, bubbles, and the like. Further, various plastic lenses such as eyeglass lenses, camera lenses, and the like having excellent appearance characteristics (without striae and bubbles) and excellent optical characteristics can be obtained from the composition.

The embodiments relate to a polythiol composition for a plastic optical lens and a polythiourethane-based plastic optical lens prepared therefrom. In the embodiments, a first polythiol compound having an ester group and a mercapto group only as a hydrogen-bondable functional group and a second polythiol compound having an ester group and a hydrogen-bondable functional group other than a mercapto group are used in an appropriate amount. Thus, it is possible to control the viscosity of a polymerizable composition at the initial stage of polymerization at a low temperature of 5 to 15 C. and to stabilize the rate of increase in the viscosity of the composition and the reaction rate thereof, thereby preventing the generation of striae, bubbles, and the like. Further, various plastic lenses such as eyeglass lenses, camera lenses, and the like having excellent appearance characteristics (without striae and bubbles) and excellent optical characteristics can be obtained from the composition.

A film production method for producing a thin film on a surface of a workpiece, including the steps of: disposing the workpiece in a chamber; supplying a process gas into the chamber with the inside of the chamber being maintained at a predetermined pressure; applying a light having an energy between 3 eV and 10 eV to the surface of the workpiece to cause a photoelectron to be emitted from the surface of the workpiece; and applying an AC electric field to the surface of the workpiece, wherein the AC electric field has an electric field intensity causing a Townsend discharge to occur without generating a glow discharge plasma.

A production method for an organopolysiloxane emulsion composition, wherein (I) an emulsion composition is prepared from an organopolysiloxane (A) that is represented by formula (1) and that has an octamethylcyclotetrasiloxane content of 1,000 ppm or less
HO(R.sup.1.sub.2SiO).sub.nH(1),
(wherein R.sup.1 is H or a monovalent hydrocarbon group and n is a number that makes the viscosity, at 25 C., of the organopolysiloxane 200 mm.sup.2/s or more but less than 2,000 mm.sup.2/s), a surfactant (B) that is represented by formula (2) and that has an alkyl naphthalene skeleton
R.sup.2.sub.aC.sub.10H.sub.(7-a)SO.sub.3M(2),
(wherein R.sup.2 is an alkyl group, M is H.sup.+, an alkali metal ion, an alkali earth metal ion, NH.sub.4.sup.+, or a tertiary NH.sub.4.sup.+, and m is 1-3), and water (C-1), and wherein (II) water (C-2) is added as necessary and then emulsion polymerization is performed in the presence of an acid catalyst (D).

Provided is a release agent for vulcanized rubber molding, the release agent exhibiting good mold releasability between a mold and a rubber after vulcanization and capable of being easily removed after production. The release agent for vulcanized rubber molding contains a polyoxyalkylene glyceryl ether (A). The polyoxyalkylene glyceryl ether (A) contains 50% to 95% by mass of oxyethylene groups in 100% by mass of oxyalkylene groups. The polyoxyalkylene glyceryl ether (A) preferably has a number-average molecular weight of 2,000 to 20,000.

Provided is a release agent for vulcanized rubber molding, the release agent exhibiting good mold releasability between a mold and a rubber after vulcanization and capable of being easily removed after production. The release agent for vulcanized rubber molding contains a polyoxyalkylene glyceryl ether (A). The polyoxyalkylene glyceryl ether (A) contains 50% to 95% by mass of oxyethylene groups in 100% by mass of oxyalkylene groups. The polyoxyalkylene glyceryl ether (A) preferably has a number-average molecular weight of 2,000 to 20,000.