C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
253/106, 253/124
C10M 133/12 (2006.01) C10M 129/10 (2006.01) C10M 129/76 (2006.01) C10M 133/02 (2006.01) C10M 133/40 (2006.01) C10M 141/06 (2006.01) C10M 141/08 (2006.01)
Patent
CA 2020558
Lubricants can be stabilized against oxidation by the addition of a) a sterically hindered amine and b) a phenol of formula I (see formula I) wherein A, B and X are as defined in claim 1. It is preferred to use phenols of formula I which contain a thioether group.
Ag Ciba-Geigy
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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