Abstract:
A novel cyanine compound of general formula (I) showing thermal behaviors suitable for optical recording applications, an optical recording material containing the same, and an optical recording material containing the same. wherein ring A and ring B each represent a benzene or naphthalene ring that may be substituted; at least one of the pair of adjacent groups R1 and R2 and the pair of adjacent groups R3 and R4 represent a pair of benzyl groups, and the other paired groups each represent an alkyl group having 1 to 4 carbon atoms or are connected to each other to form a 3- to 6-membered ring; Y1 and Y2 each represent an organic group having 1 to 30 carbon atoms; An m- represents an m-valent anion; m represents an integer 1 or 2; and p represents a coefficient for maintaining the charge neutrality.
Abstract:
A cyanine compound represented by formula (I): wherein ring A and ring B each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted naphthalene ring; R , R , R , and R each represent an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted benzyl group, or R and R are taken together, or R and R are taken together, to form a 3- to 6-membered ring, provided that at least one of R , R , R , and R is a substituted benzyl group; Y and Y each represent an organic group having 1 to 30 carbon atoms; An represents an m-valent anion; m represents an integer 1 or 2; and p represents a coefficient for maintaining overall charge neutrality.
Abstract:
The present invention provides an antioxidant for a thermoplastic resin that provides an excellent oxidation-preventing effect to a thermoplastic resin and that has an excellent effect of preventing a change in color caused by nitrogen oxides. Specifically, a compound represented by any of General Formulae (2) to (4), particularly a compound in which R 2 in the formulae is an alkyl group having 1 to 8 carbon atoms whose terminal on an oxygen atom side is linked with -CO-O-, is used as the antioxidant for a thermoplastic resin. Details of General Formulae (2) to (4) are as described in the description.
Abstract:
The present invention provides a light-diffusing resin composition capable of realizing high color rendering properties and brightness when used in light-diffusing sheets, and a light-diffusing sheet and a light source unit using same. Provided are the light-diffusing resin composition including a binder resin (A) preferably in 1 to 80 mass%, a light-diffusing agent (B) preferably in 15 to 95 mass%, and a trimethine cyanine compound (C) represented by formula (I) preferably in 0.0001 to 5 mass%; and the light-diffusing sheet using the light-diffusing resin composition in a light-diffusing layer. The light source unit has the light-diffusing sheet and a light source, preferably a white LED.
Abstract:
Disclosed is a cyanine compound represented by general formula (I) below .Also disclosed are an optical filter using the compound and an optical recording material.
Abstract:
The color conversion filter of the present invention contains at least one kind of squarylium dye that radiates fluorescence light, has a wavelength conversion capability, absorbs light in an unneeded wavelength region, radiates fluorescence light in a preferable wavelength region, and does not allow decrease in brightness, and thus is preferable for color conversion light-emitting devices, photoelectric conversion devices and the like. Specifically, the color conversion filter of the present invention has an absorption having a high intensity in the range of 570 to 600 nm, and thus is preferable for use in a color conversion filter that radiates fluorescence light having a high intensity in the range of 600 to 780 nm.