C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/7066
C08K 5/49 (2006.01) C07F 9/08 (2006.01) C07F 9/28 (2006.01) C08K 5/51 (2006.01) C08K 5/5398 (2006.01) C08L 101/00 (2006.01)
Patent
CA 1085542
ABSTRACT OF THE DISCLOSURE This invention relates to thermoplastic resin compositions containing an organo-phosphorus compound. The organo-phosphorus compound has one of the formulas I. (R1)(R2) P (=X)a - P(=X)a (R1) (R2) II. (P - R1)n III. (R1)(R2) P (=X)a - P(R3) - P(=X)a (R1)(R2) wherein a is independently 0 or 1, n is 3 to 6, X is oxygen or sulfur, R1, R2 and R3 are independently dialkyl- amino, alkoxy, aryloxy, alkyl, aryl, alkaryl, aralkyl, or R1 and R2 taken with the phosphorus atom represent a cyclic structure having only carbon, phosphorus and oxygen atoms in the cyclic structure. The thermoplastic resin composi- tions of this invention are resistant to discoloration.
307528
Baggett Joseph M.
Ham George E.
Smart & Biggar
The Dow Chemical Company
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