3,9-disphosphaspiroundecanes and process for making...

Details 3,9-disphosphaspiroundecanes and process for making... 3,9-disphosphaspiroundecanes and process for making...

C - Chemistry, Metallurgy

08

K

260/457, 260/462

C08K 5/52 (2006.01) C07F 9/6574 (2006.01) C08K 5/527 (2006.01)

Patent

CA 1340965

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-diphosphas- prio[5.5]undecanes and polymer composition containing an effective amount of same.

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