3-9-diphosphaspiroundecane-stabilized polymer compositions

Details 3-9-diphosphaspiroundecane-stabilized polymer compositions 3-9-diphosphaspiroundecane-stabilized polymer compositions

1993-09-27

1994-05-03

Morgan, Kriellion S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C08K 552

Patent

active

053089014

ABSTRACT:
The present invention provides an improved process for making diphosphaspiroundecanes and product-by-process, wherein the process comprises reacting a hydroxyl-substituted organic compound, phosphorous trichloride and pentaerythritol to form an organic-substituted diphosphaspiroundecane such that formation of said organic-substituted diphosphaspiroundecane takes place in the presence of a tri-n-alkylamine having n-alkyl moieties such that each n-alkyl moiety has at least three carbon atoms. The present invention is also directed to bis-3,9-(2,6-di-t-alkyl-4-alkylphenoxy)-2,4,8,10-tetroxa-3,9-diphosphaspri o[5.5]undecanes and polymer composition containing an effective amount of same.

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Patent Abstract of Japan, vol. 3, No. 50 (Japanese Reference No. 56-113790 dated Feb. 27, 1979.
Patent Abstract of Japan, vol. 5, No. 194 (Japanese Reference No. 56-113790 dated Sep. 7, 1981.

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