Patent ID: 7683112
Filing Date: 2010-03-23
Classification: C07F,C08K

Abstract:
1. A phosphite composition comprising 100 parts by weight of a phosphite represented by the formula (1): wherein R 1 , R 2 , R 4 and R 5 independently represent a hydrogen atom, an alkyl group of 1 to 8 carbon atoms, a cycloalkyl group of 5 to 8 carbon atoms, an alkylcycloalkyl group of 6 to 12 carbon atoms, an aralkyl group of 7 to 12 carbon atoms or a phenyl group, R X represents a single bond, a sulfur atom or a —CHR A represents an alkylene group of 2 to 8 carbon atoms or a *—COR one of Y and Z represents a hydroxyl group, an alkoxy group of 1 to 8 carbon atoms or an aralkyloxy group of 7 to 12 carbon atoms, and the other represents a hydrogen atom or an alkyl group of 1 to 8 carbon atoms, when Y is a hydroxyl group, one of R R and 0.5 to 8 parts by weight of an aliphatic hydrocarbon lubricant having a softening point or a melting point of not higher than 115° C., wherein the content of the phosphite represented by the formula (1) in said composition is 30 to 99.5% by weight, wherein the composition is a granular composition, and wherein the composition comprises not more than 10% by weight of components having a particle diameter of not more than 45 μm.