Abstract:
A polyester resin composition including a ketene imine compound represented by the Formula (1) and polyester shows excellent hydrolysis resistance and prevents yellowing. At least one of R11, R12, R21 and R22 represents an alkyl, aryl, alkoxy or aryloxy group which may have a substituent; R15 and R25 represent an alkyl, aryl, alkoxy or aryloxy group which may have a substituent; R3 represents an alkyl or aryl group which may have a substituent; and a and b represent an integer of 0 to 3.
Abstract:
By forming a polyester film from a polyester resin composition including ketene imine compound represented by the following Formula (1) and polyester, the polyester film having excellent hydrolysis resistance in which volatilization of the ketene imine compound or the ketene compound can be suppressed. In Formula (1), R1 and R2 represent an alkyl group, an aryl group, an alkoxy group, an alkoxycarbonyl group, an aminocarbonyl group, an aryloxy group, an acyl group, or an aryloxycarbonyl group, and the R1—C(═C)—R2 substructure has a molecular weight of 320 or greater. R3 represents an alkyl group or an aryl group.
Abstract:
A polyester film including a cyclic carbodiimide compound represented by the following Formula (O-1) has good film thickness uniformity without increase in viscosity. R1 and R5 represent an alkyl group, an aryl group, or an alkoxy group; R2 to R4 and R6 to R8 represent a hydrogen atom, an alkyl group, an aryl group, or an alkoxy group; X1 and X2 represent a single bond, —O—, —CO—, —S—, —SO2—, —NH—, or —CH2—; and L1 represents a divalent linking group.
Abstract:
A back protective sheet for a solar cell module containing a polyester support that is biaxially stretched and then subjected to a thermal fixation treatment; and a polymer layer arranged to be in contact with at least one surface of the polyester support, wherein the polymer layer contains a binder having at least one functional group selected from a carboxyl group, a hydroxyl group, an amino group, a sulfonic acid group, and a carbonyl group; a pigment; and a crosslinking agent-derived structure, and the polyester support contains a polyester, a pigment, and an terminal blocking agent, has excellent adhesion between the support and the functional layer after wet heat aging.