Color stable chelated titanate compositions

Claim 1

A composition comprising the product obtained by mixing, under conditions which substantially exclude moisture, (a) a chelated titanium compound having a formula in which R 3 is a monovalent hydrocarbon radical having from 1 to 18 inclusive carbon atoms, R 4 is a monovalent radical selected from the group consisting of hydrocarbon radicals having from 1 to 18 carbon atoms, and hydrogen, R is a monovalent radical selected from the group consisting of hydrocarbon radicals and aliphatic hydrocarbonoxy radicals each having from 1 to 18 inclusive carbon atoms, and Z is a radical selected from the group consisting of monovalent aliphatic hydrocarbonoxy radicals and monovalent acyloxy radicals, each having from 1 to 18 inclusive carbon atoms; hydroxyl _ radical; divalent oxygen atoms forming a TiOTi linkage; and when taken together form an alkanedioxy radical of the formula in which R 6 is a radical selected from the group consisting of hydrogen atom and monovalent aliphatic hydrocarbon radicals having not more than 8 carbon atoms, the total number of carbon atoms in the alkanedioxy radical is not more than 18, and (b) from 1 to 100 parts by weight based on 100 parts by weight of (a), of an additive soluble in the chelated titanium compound and being selected from the group consisting of (1) an ester of thioalkanoic acid of the formula wherein R 8 is an alkyl group containing from.l to 15 inclusive carbon atoms and a is an integer of from 1 to 4 inclusive, (2) di-tertiary-butyl phenol containing compounds selected from the group consisting of 2,6-di-tert-butyl-4- .methylphenol, tetrakis[methylene-3-. (3',5'-di-tert-butyl-4'-hydroxyphenyl)-propionate]methane, octadecyl-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)-propionate, 4,4'-methylene-bis(2,6-di- tert-butylphenol), 1,6-hexamethylene-bis-(3,5-di-tert-butyl-4-hydroxyhydrocinnamate), and thiodiethylene-bis-(3,5-di-tert-butyl-4-hydroxyhydrocinnamate), (3) an organic phosphite selected from the group consisting of the formula wherein R and R are selected from the group consisting of linear or branched alkyl radicals of from 1 to 18 carbon atoms, and phenyl radical, wherein b is 0 or 1, and the formula wherein R 12 is a linear or branched alkyl radical of from 1 to 18 carbon atoms, and. (4) a mixture of (2) and (3), the composition having a color of less than 13 as determined by the Gardner Color Scale and being stored under conditions substantially excluding moisture.