C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 143/08 (2006.01) C10M 145/14 (2006.01) C10M 157/00 (2006.01) C10M 169/04 (2006.01)
Patent
CA 2095972
Abstract of the Disclosure Lubricants having a Brookfield viscosity at -40°C equal to or below 20,000 cP (preferably 15,000 or less) are formed from blends composed of a major amount ofmineral oil in the range of 75N to 200N; and minor amounts of poly-a-olefin oligomer (PAO) formed from 1-alkene of 6 to 20 carbon atoms and having a kinematic viscosity in the range of 2 to 7 cSt at 100°C; and acrylic polymeric viscosity index improver. Synergistic low temperature viscometric properties are exhibited by typical compositions of this type.
Hartley Rolfe J.
Srinivasan Sanjay
Ethyl Petroleum Additives Inc.
Macrae & Co.
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