C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
253/105, 400/709
C07C 239/20 (2006.01) C07C 291/04 (2006.01) C08K 5/32 (2006.01) C08L 101/06 (2006.01) C10L 1/14 (2006.01) C10L 1/23 (2006.01) C10L 1/24 (2006.01) C10M 133/04 (2006.01) C10M 133/36 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01)
Patent
CA 2040904
Compounds of formula I Image wherein X is a group of formula Ia or Ib, Image R1 and R2 are independently e.g, hydrogen, alkyl, alkenyl, aryl or phenylalkyl, and R3 to R7 are independently e.g. hydrogen, alkyl or substituted alkyl are very effective process stabilizers for polymeric systems providing melt flow stabilization and resistance to dis- coloration during processing at elevated temperatures as well as effective stabilizers for lubricant compositions.
Babiarz Joseph E.
Meuwly Roger
Odorisio Paul A.
Rutsch Werner
Ag Ciba-Geigy
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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