Abstract:
An optical filter is provided to reduce a half-width and to use the optical filter as an optical element to the light having of a wavelength of 380-500 nm. An optical filter comprises at least one kind of compound represented by the formula I, wherein R1, R2, R3, R4 and R5 are independently H, a C1-C8 alkyl group, an amino group, or a hydroxyl group; R1 and R2, R2 and R3, R3 and R4, and R4 and R5 can be connected to form a ring; R6 is a cyano group, -COOR, -OCOR, -CONHR, -NHCOR, -COONHR, -NHCOOR, -COR, -SO2R, -SOR, -SONRR', a halogen atom, a nitro group, or a phosphono group; R and R' are independently H, a C1-C8 alkyl group, a C6-C20 aryl group, or a C7-C20 arylalkyl group; and the methylene group of the C1-C8 alkyl group can be substituted with -O-, -S-, -COO-, -OCO-, or -CH=CH-.
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 comprising at least one compound (1) and (B) a photosensitive resin are provided. Preferred are the compound (1) in which R 1 is an unsubstituted or substituted C6-C20 aromatic hydrocarbon group, the compound (1) in which at least one of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 is nitro, and the compound (1) in which n is 0. The symbols in general formula (1) are as defined in the description.
Abstract:
PROBLEM TO BE SOLVED: To provide a highly sensitive photopolymerization initiator that is activated by efficiently absorbing a long wavelength light such as a light with a wavelength of 405 nm or 365 nm. SOLUTION: The oxime ester compound is represented by general formula (I) (wherein R 1 and R 2 represent R, OR, COR, SR, CONR'R" or CN; R, R' and R" represent an alkyl group or the like; R 3 and R 4 each independently represent R, OR, SR, a cyano group, a halogen atom or a hydroxyl group; a and b each independently are 0 to 4; X represents an oxygen atom, a sulfur atom, a selenium atom, a carbon atom, N-R 5 or P-R 12 ; and R 5 and R 12 represent an alkyl group). COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for polymerizing 2-(2'-hydroxyphenyl)benzotriazole derivatives having a reactive group, which polymerizes only in non-aqueous organic solvents, in an environment-friendly aqueous solvent.SOLUTION: A complex in which a compound expressed by general formula (1) is included in a hydrophobic cavity of cyclodextrin is used. In the formula, R1 to R3 are each independently represents hydrogen, halogen, alkyl, alkoxy, -Z-OCO-C(R4)=CHor -O-Z-OCO-C(R4)=CH; Z represents alkylene; R4 represents hydrogen or methyl, provided that at least one of groups represented by R1 to R3 is -Z-OCO-C(R4)=CHor -O-Z-OCO-C(R4)=CH.
Abstract:
PROBLEM TO BE SOLVED: To provide a compound suitable for a light absorption agent which is especially used for an optical element for light of 380 to 500 nm wavelength, for an optical filter for an image display in particular. SOLUTION: The optical filter contains at least one kind of compounds expressed by a general formula (I). In the general formula (I), R 1 , R 2 , R 3 , R 4 and R 5 respectively denote a hydrogen atom, an alkyl group of 1-8C, an amino group or a hydroxyl group and R 6 denotes a cyano group, -COOR, -OCOR, -CONHR, -NHCOR, -COONHR, -NHCOOR, -COR, -SO 2 R, -SOR, -SO 2 NRR', a halogen atom, a nitro group or a phosphono group. COPYRIGHT: (C)2008,JPO&INPIT