Abstract: A novel compound having satisfactory sensitivity (base generating performance), a photosensitive resin composition containing the compound as a photo-initiator, and a cured product of the composition are provided. Specifically, a compound represented by general formula (1) (compound (1)), a photosensitive resin composition containing (A) a photo-initiator including at least one compound (1) and (B) a photosensitive resin are provided. Preferred are the compound (1) in which R1 is an unsubstituted or substituted C6-C20 aromatic hydrocarbon group, the compound (1) in which at least one of R5, R6, R7, R8, R9, R10, and R11 is nitro, and the compound (1) in which n is 0. The symbols in general formula (1) are as defined in the description.

Abstract: A novel compound having satisfactory sensitivity (base generating performance), a photosensitive resin composition containing the compound as a photo-initiator, and a cured product of the composition are provided. Specifically, a compound represented by general formula (1) (compound (1)), a photosensitive resin composition containing (A) a photo-initiator including at least one compound (1) and (B) a photosensitive resin are provided. Preferred are the compound (1) in which R1 is an unsubstituted or substituted C6-C20 aromatic hydrocarbon group, the compound (1) in which at least one of R5, R6, R7, R8, R9, R10, and R11 is nitro, and the compound (1) in which n is 0. The symbols in general formula (1) are as defined in the description.

Abstract: An oxime ester compound of formula (I) useful as a photopolymerization initiator. A photopolymerization initiator having the oxime ester compound as an active ingredient is activated through efficient absorption of light of long wavelength, e.g., 405 nm or 365 nm, to exhibit high sensitivity. In formula (I), R1 and R2 are each R11, OR11, COR11, SR11, CONR12R13, or CN; R11, R12, and R13 are each hydrogen, a C1-C20 alkyl group, C6-C30 aryl group, a C7-C30 arylalkyl group, or a C2-C20 heterocyclic group; R3 and R4 are each R11, OR11, SR11, COR11, CONR12R13, NR12COR11, OCOR11, COOR11, SCOR11, OCSR11, COSR11, CSOR11, CN, halogen, or a hydroxyl group; a and b is each 0 to 4; X is oxygen, sulfur, selenium, CR31R32, CO, NR33, or PR34; and R31, R32, R33, and R34 each have the same meaning as R1.

Abstract: An oxime ester compound of formula (I) useful as a photopolymerization initiator. A photopolymerization initiator having the oxime ester compound as an active ingredient is activated through efficient absorption of light of long wavelength, e.g., 405 nm or 365 nm, to exhibit high sensitivity. In formula (I), R1 and R2 are each R11, OR11, COR11, SR11, CONR12R13, or CN; R11, R12, and R13 are each hydrogen, a C1-C20 alkyl group, C6-C30 aryl group, a C7-C30 arylalkyl group, or a C2-C20 heterocyclic group; R3 and R4 are each R11, OR11, SR11, COR11, CONR12R13, NR12COR11, OCOR11, COOR11, SCOR11, OCSR11, COSR11, CSOR11, CN, halogen, or a hydroxyl group; a and b is each 0 to 4; X is oxygen, sulfur, selenium, CR31R32, CO, NR33, or PR34; and R31, R32, R33, and R34 each have the same meaning as R1.

Abstract: A thermal recording material includes a condensation reaction product of a carboxylic acid component (A) with a polyhydric alcohol component (B) in a thermal recording layer as an essential component, wherein the carboxylic acid component (A) includes (poly) 4-hydroxybenzoic acid represented by the following general formula (I) as an essential component and another monocarboxylic acid and/or dicarboxylic acid as an arbitrary component, and wherein the polyhydric alcohol component (B) includes a polyhydric alcohol which is a trihydric or more alcohol as an essential component and a dihydric low molecular-weight alcohol as an arbitrary component. wherein in the general formula(I), a letter p denotes an integer ranging from 0 to 2.

Abstract: A heat-sensitive recording material, comprising a heat-sensitive recording layer containing at least one acid hydrazide compound represented by the following general formula (I): ##STR1## wherein X.sub.1 and X.sub.2 each independently represent a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group or alkoxy group having 1 to 10 carbon atoms, A represents --CO-- or --SO.sub.2 --, n is 1 or 2, when n is 1, R.sub.1 represents an alkyl group, an aryl group, a hydroxyaryl group, an alkoxyaryl group, or an alkylaryl group having 1 to 22 carbon atoms and when n is 2, R.sub.1 represents an alkylene group or arylene group having 1 to 18 carbon atoms or a direct bond.

Abstract: The heat-sensitive recording material of the present invention comprises a heat-sensitive recording layer containing at least one resorcylic anilide derivative represented by the following general formula: ##STR1## wherein R.sub.1 represents an alkyl or alkoxy, group having 1 to 4 carbon atoms and R.sub.2 represents a hydrogen atom or an alkyl or alkoxy group having 1 to 4 carbon atoms.

Abstract: A photopolymerizable composition comprising: (a) 100 parts by weight of a compound having at least one ethylenically unsaturated group, (b) 0 to 400 parts by weight of a thermoplastic organic polymer and (c) 0.01 to 20 parts by weight of a photoinitiator, characterized in that an acridine compound of the following general formula (I) is used as the photoinitiator: ##STR1## wherein R represents an alkylene, oxadialkylene or thiodialkylene group having 2 to 20 carbon atoms,and a photopolymerizable element comprising a layer of the photopolymerizable composition formed on a support.

Abstract: Improved clarity and resistance to deterioration on heating of polyvinyl fluoride and vinyl chloride polymers is obtained by employing a stabilizer composition consisting essentially of (A) a heterocyclic nitrogen compound having as part of a 5 or 6 membered heterocyclic ring the group ##STR1## in which R is hydrogen, aryl, or alkyl having 1 to 12 carbon atoms, and X is oxygen or sulfur, and (B) one or more 1,2-epoxides, organic phosphites, or stannous tin, zinc, magnesium, aluminum, potassium, sodium, calcium, strontium, or barium salts of non-nitrogenous monocarboxylic acids having from 6 to 24 carbon atoms or hydrocarbon-substituted phenols having from about 10 to about 30 carbon atoms.