Abstract 1. A HYDROCARBON BASE STOCK, USEFUL AS A LUBRICANT HAVING A KINEMATIC VISCOSITY AT 210*F. IN THE RANGE OF 1.5200.0 C.S. AND COMPRISING A BLEND OF (I) AT LEAST ONE PART BY WEIGHT OF A SYNTHETIC OIL CONTAINING AT LEAST 95% OF C13-C40 NAPHTNENE AND (II) FROM 0.1-20 PARTS BY WEIGHT, BASED ON SAID NAPHTNENE OF AT LEAST ONE MEMBER FROM AT LEAST ONE OF THE FOLLOWING GROUPS (A), (B) AND (C): (A) A SYNTHETIC LIQUID C3-C8 OLEFIN HOMOPOLYMER, COPOLYMER, OR TERPOLYMER; (B) A MEMBER FROM GROUP (A) ABOVE WHICH IS AT LEAST PARTIALLY HYDROGENATED; AND, (C) A SEVERLY HYDROREFINED NAPHTNENIC MINERAL OIL LUBE OR PARAFFINIC MINERAL OIL LUBE CONTAINING LESS THAN 1% OF GEL AROMATIC HYDROCARBONS, AND WHEREIN SAID BASE STOCK CONTAINING SAID BLEND HAS A COEFFICIENT OF TRACTION, MEASURED AT 600 FT./MIN., 200*F., 400,000 P.S.I., AT LEAST AS HIGH AS THAT OF ASTM OIL NO. 3. D R A W I N G
A HYDROCARBON BASE STOCK, USEFUL AS A LUBRICANT HAVING A KINEMATIC VISCOSITY AT 210*F. IN THE RANGE OF 1.5200.0 C.S. AND COMPRISING A BLEND OF (I) AT LEAST ONE PART BY WEIGHT OF A SYNTHETIC OIL CONTAINING AT LEAST 95% OF C13-C40 NAPHTNENE AND (II) FROM 0.1-20 PARTS BY WEIGHT, BASED ON SAID NAPHTNENE OF AT LEAST ONE MEMBER FROM AT LEAST ONE OF THE FOLLOWING GROUPS (A), (B) AND (C): (A) A SYNTHETIC LIQUID C3-C8 OLEFIN HOMOPOLYMER, COPOLYMER, OR TERPOLYMER; (B) A MEMBER FROM GROUP (A) ABOVE WHICH IS AT LEAST PARTIALLY HYDROGENATED; AND, (C) A SEVERLY HYDROREFINED NAPHTNENIC MINERAL OIL LUBE OR PARAFFINIC MINERAL OIL LUBE CONTAINING LESS THAN 1% OF GEL AROMATIC HYDROCARBONS, AND WHEREIN SAID BASE STOCK CONTAINING SAID BLEND HAS A COEFFICIENT OF TRACTION, MEASURED AT 600 FT./MIN., 200*F., 400,000 P.S.I., AT LEAST AS HIGH AS THAT OF ASTM OIL NO. 3.
Claim 2
Dependent Claim
147 words
A HYDROCARBON BASE STOCK, USEFUL AS A LUBRICANT HAVING A KINEMATIC VISCOSITY AT 210*F. IN THE RANGE OF 1.5200.0 C.S. AND COMPRISING A BLEND OF (I) AT LEAST ONE PART BY WEIGHT OF A SYNTHETIC OIL CONTAINING AT LEAST 95% OF C13-C40 NAPHTNENE AND (II) FROM 0.1-20 PARTS BY WEIGHT, BASED ON SAID NAPHTNENE OF AT LEAST ONE MEMBER FROM AT LEAST ONE OF THE FOLLOWING GROUPS (A), (B) AND (C): (A) A SYNTHETIC LIQUID C3-C8 OLEFIN HOMOPOLYMER, COPOLYMER, OR TERPOLYMER; (B) A MEMBER FROM GROUP (A) ABOVE WHICH IS AT LEAST PARTIALLY HYDROGENATED; AND, (C) A SEVERLY HYDROREFINED NAPHTNENIC MINERAL OIL LUBE OR PARAFFINIC MINERAL OIL LUBE CONTAINING LESS THAN 1% OF GEL AROMATIC HYDROCARBONS, AND WHEREIN SAID BASE STOCK CONTAINING SAID BLEND HAS A COEFFICIENT OF TRACTION, MEASURED AT 600 FT./MIN., 200*F., 400,000 P.S.I., AT LEAST AS HIGH AS THAT OF ASTM OIL NO. 3.