Sumitomo Chemical Company, Limited

Nippon Sheet Glass Company, Limited

Shigeo Hozumi

Shinichiro Kitayama

Shuichi Kanagawa

Kunimasa Kamio

Hiroya Nakagawa

Hiroshi Nakamura

Satoshi Ishizuka

Koichi Maeda

Toshifumi Tsujino

Masao Yamagiwa

Koji Baba

Hiroaki Yamamoto

Kazuo Takebe

Masaru Honda

Takao Mori

Toshiya Inoue

A practically excellent method for preserving a photosensitive composition Containing a photopolymerization initiator and a photopolymerizable monomer and/or oligomer, which comprises placing and preserving the photosensitive composition in a light shielding vessel, wherein the product of the void ratio (%) in the vessel and the oxygen partial pressure (hPa) in the void part is 1500 (%&middot;hPa) or more is provided; and the method imparts remarkably improved preservation stability.

Method of preserving photosensitive composition

A pigment-dispersion photo-sensitive coating solution comprising a binder resin, an organic-solvent and a main pigment dispersed in the solvent, wherein the combined area of peaks detected at a relative retention ratio in the range of 0.68 to 0.72 based on a retention time of dibutyl phthalate and peaks detected at a relative retention ratio in the range of 1.06 to 1.10 based on a retention time of dibutyl phthalate is not more than 50% of the total area of all peaks when the pigment is extracted by ethyl acetate and the extracts are analyzed by high-speed liquid chromatography using dibutyl phthalate as internal standard, is provided and use of the coating solution ensures that the colored image of stable quality is formed.

Pigment-dispersion photo-sensitive coating solution

Color filter, method of manufacturing color filter and photosensitive coloring composition

A layer for protection coating and adhesion of DVD is formed by a photo-curing resin composition which comprises a photo-curing component which is cured by polymerization reaction of a unsaturated group, a photo-polymerization initiator and a phenol-based primary antioxidant, wherein this photo-curing component comprises a bi-functional urethane acrylate, an epoxy acrylate containing a bisphenol A skeleton, and a N-vinyl lactam compound, said polymerization initiator comprising a mono or di-benzoylphosphine oxide compound in an amount of 0.1% by weight or more to less than 5.0% by weight based on the total amount of said photo-curing components, and the viscosity of this resin composition at 25.degree. C. being in the range from 350 to 700 mPa.multidot.s.

Photo-curing resin composition for DVD

Filter for liquid crystal display device

A photoresist composition is disclosed which includes:

Photoresist composition comprising a polyfunctional vinyl ether compound

A polyfunctional vinyl ether compound represented by formula (I): ##STR1## wherein n, which is an average repeating number, represents a number of from 0 to 20; R.sub.1 and R.sub.2 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, or a cycloalkyl group; Q each independently represents --OH or a group represented by the formula --OROCH.dbd.CH.sub.2, wherein R represents an alkylene group having from 1 to 12 carbon atoms, the molar ratio of (--OH)/(--OROCH.dbd.CH.sub.2) being from 10/90 to 90/10; and A each independently represents a divalent hydrocarbon group having from 1 to 30 carbon atoms.

Polyfunctional vinyl ether compound and photoresist resin composition

A resin composition comprising a polymeleimide compound having two or more maleimide groups in one molecule, a phenol novolac resin of which phenolic hydroxyl groups are epoxidized and allyl-etherified and, as an optional ingredient, a curing agent, or a resin composition comprising a polymaleimide compound having two or more maleimide groups in one molecule, a phenol novolac resin of which phenolic hydroxyl groups are allyl-etherified and an epoxy resin; and a heat resistant composite material comprising cured product of said resin composition as its matrix phase and containing a fiber as its reinforcing material.

Thermosetting resin composition and a composite material comprising

A process for producing a light control plate, which comprises

Process for producing light control plate having light-scattering

A method of producing a light control plate which induces scattering of light at different angles of incidence for different places. The method comprises (1) preparing an assembly comprising a film of a photo-polymerizable composition and a light-pervious body having a light-impervious pattern arranged along the surface of the film, (2) irradiating light limitedly to the assembly from that side where the light-pervious body at a limited angle while moving the assembly continuously in the planar direction of the film thereby to polymerize at least part of the photopolymerizable film, the light being emitted from a first linear light source whose long axis is positioned in a direction crossing the moving direction of the assembly; and thereafter (3) polymerizing the photopolymerizable composition of that portion of the film-like molded article which is covered with the light-impervious pattern of the light-pervious body by light irradiation or heating.

Method of producing light control plate which induces scattering of

Thermosetting resin composition composed of a polymaleimide compound, a

A thermosetting resin composition comprising (A) a phenol novolac resin, some of the hydroxyl groups of which have been allyl-etherified and the other hydroxyl groups having added thereto a compound having one or more epoxy groups and (B) a polymaleimide compound having two or more maleimide groups in the molecule.

Growing community of inventors

Toyonaka, Japan

Shigeo Hozumi