Process for improving color of basic metal organic salts and stabilizing halogen-containing polymers therewith
AssigneeOMG Americas, Inc.
InventorsRajesh Khattar, Benjamin Paul Labovitz
Life of this patent
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Abstract
A light colored basic alkali or alkaline earth metal organic salt is obtained by the reaction of a basic metal compound, an alkyl phenol and/or a carboxylic acid, carbon dioxide, and thereafter post-treating the reaction product with an organic phosphite. Alkaline earth metal salts of phenols and carboxylic acids include barium or calcium. Organic phosphites include trialkyl or dialkyl phosphites such as triisodecyl phosphite or diisooctyl phosphite.
Claims28
A process for improving the color of a basic alkali or alkaline earth metal organic salt prepared from mixtures containing a phenol consisting essentially of:
- preparing a reaction mixture containing a basic alkali or alkaline earth organic metal salt and a color-producing component selected from the group consisting of a phenol and a phenolic reaction product and,
- treating the reaction mixture with an organic phosphite in an amount sufficient to react with the color-producing component and thereby improve the color of said basic alkali or alkaline earth metal organic salt.
Dependencies are inferred from the claim text.