Pentaerythritol-spiro-bis-phosphite compositions having...

Details Pentaerythritol-spiro-bis-phosphite compositions having... Pentaerythritol-spiro-bis-phosphite compositions having...

C - Chemistry, Metallurgy

08

K

31/76, 400/9382,

C08K 5/00 (2006.01) C07F 9/02 (2006.01) C08K 5/17 (2006.01) C08K 5/52 (2006.01) C08K 5/527 (2006.01)

Patent

CA 1262792

PENTAERYTHRITOL-SPIRO-BIS-PHOSPHITE COMPOSITIONS HAVING IMPROVED HYDROLYTIC STABILITY ABSTRACT OF THE DISCLOSURE Pentaerythritol-spiro-bis-phosphite compositions are provided having an improved hydrolytic stability, comprising (1) a pentaerythritol-spiro-bis-phosphite of the formula: Image I wherein: R1: and R2 are alkylaryl groups having at least fourteen-carbon atoms and up to about thirty-six carbon atoms; and (2) a long-chain aliphatic amine in an amount to improve the hydrolytic stability of the phosphite and having the formula: Image II wherein: R3, R4 and R6 are selected from the group consisting of hydrogen; aliphatic including alkyl and alkenyl) groups having from one to about thirty-six carbon atoms; and hydroxyalkyl having from two to about six carbon atoms, one of R3, R4 and R5 is an aliphatic group having at least fourteen carbon atoms, and the remaining of R3, R4 and R5 are selected from hydrogen, alkyl having from one to four carbon atoms and hydroxyalkyl; and preferably at least one of R3, R4 and R5 is hydroxyalkyl.

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