摘要:
An amorphous, oil soluble ethylene/propylene/CO polymer having a mole ratio of ethylene to propylene from about 35:65 to 60:40 and lube oil compositions comprising said polymers.
摘要:
Disclosed is a graphited gear oil containing extreme pressure additives, which significantly overcomes the increased tendency of graphite-containing compositions to thicken in use.
摘要:
An ene adduct and adduct derivatives of a C.sub.3 -C.sub.24 ethylenically unsaturated nitrogen-containing reactant, e.g. acrylonitrile, and a copolymer of ethylene, at least one C.sub.3 to C.sub.50 alpha-monoolefin and at least one non-conjugated diene, said adduct containing from about 0.005 to 7% by weight nitrogen and having a number average molecular weight of from about 1000 to 500,000, in oil-soluble form have utility as a multi-functional V.I. improver for lubricating oils.
摘要:
A complex product of (1) an interpolymer of dialkylaminoalkyl methacrylate, C.sub.1 -C.sub.6 alkyl methacrylate, C.sub.10 -C.sub.14 alkyl methacrylate and C.sub.16 -C.sub.20 alkyl methacrylate monomers and (2) a liquid alkylbenzene of a molecular weight between about 100 and 5000, prepared by polymerizing the monomers comprising said interpolymer in the presence of said liquid alkylbenzene. A mineral oil composition of improved viscosity, pour depressing and detergent-dispersant properties and concentrates thereof comprising between about 10 and 95 wt. % of a mineral oil of lubricating viscosity and between about 0.1 and 90 wt. % of said complex product.
摘要:
Block copolymers are prepared by (1) anionic polymerization of an alkyl-substituted styrene, the alkyl group having at least 4 carbon atoms, or a hydrogenated block or random butadiene-styrene copolymer in the presence of an organometal catalyst of the alkali metal series and (2) addition to the reaction product resulting from this polymerization an alkylene oxide in sufficient amount to produce from 1% to about 50% by weight of a second block copolymerized with the first as an AB or BAB copolymer. These copolymers have molecular weights in the range of from about 1,000 to about 300,000 and perform as multifunctional additives in industrial organic compositions, providing such utility as detergency and viscosity index improvement. Copolymers capped with diisocyanate have excellent thermal and oxidative stability.
摘要:
NONCORROSIVE AND LOW-SLUDGING EP ADDITIVES FOR LUBRICATING OILS TO IMPROVE THE LOAD-CARRYING ABILITY OF SYNTHETIC ESTER LUBRICANTS ARE PROVIDED. THE ADDITIVE COMPOSITIONS OF THIS INVENTION ARE ACID-TERMINATED HYDROXY ESTER COMPOUNDS OBTAINED BY THE PARTIAL ESTERIFICATION OF A POLYBASIC ACID WITH A GLYCIDYL ESTER. THE EXTREME PRESSURE PROPERTIES OF SYNTHETIC ESTER LUBRICATING OIL COMPOSITIONS ARE SIGNIFICANTLY INCREASED BY INCORPORATING A SMALL AMOUNT OF COMPOUNDS SUCH AS HALF-ESTERS DERIVED FROM THE REACTION OF DIMER ACID AND A GLYCIDYL ESTER OF A BRANCHED-CHAIN ACID.
摘要:
POLYOXYALKYLENE GLYCOLS AND THEIR REACTION PRODUCTS WITH ORGANIC DIISOCYANATE AND DICARBOXYLIC ACID ARE COMBINED WITH ALKALINE EARTH METAL CARBONATES DISPERSED IN A HYDROCARBON MEDIUM TO PROVIDE LYBRICATING COMPOSITIONS OF SUPERIOR ACID NEUTRALIZATION CAPABILITY AND RUST INHIBITION IN INTERNAL COMBUSTION ENGINES.
摘要:
THE COMPOSITION OF THE INVENTION ARE LUBRICATING OILS COMPRISING A MAJOR PROPORTION OF A MINERAL OIL OF LUBRICATING VISCOSITY AND A MINOR PROPORTION OF A COMBINATION OF ADDITIVES (A) AND (B), ADDITIVE (A) BEING A NITROGEN-FREE RANDOM COPOLYMER OF ONE OR MORE ALKYL METHACRYLATES AND ONE OR MORE ALKYL ACRYLATES, THE COPOLYMER BEING COMPOSED OF UP TO 65% ALKYL ACRYLATE UNITS BASED ON THE TOTAL NUMBER OF ALKYL METHACRYLATE AND ALKYL ACRYLATE UNITS PRESENT IN THE COPOLYMER AND ADDITIVE (B) BEING AN ALKALINE EARTH METAL CONTAINING DETERGENT HAVING A TOTAL BASE NUMBER GREATER THAN 40.
摘要:
LUBRICANT COMPOSITION HAVING IMPROVED ANTI-FORMING PROPERTIES COMPRISING A MINERAL LUBRICATING OIL AND CONTAINING AN ANTI-FOAM AMOUNT OF PERFLUOROALKYLPOLYETHER.
摘要:
NOVEL POLYMERS PRODUCED BY REACTING A PRIMARY OR SECONDARY AMINE AND MECHANICALLY DEGRADED, OXIDIZED ATACTIC ETHYLENE/PROPYLENE COPOLYMER. ALSO DISCLOSED ARE AUTOMOTIVE LUBRICATING OILS CONTAINING SUCH POLYMERS AS ANTIVARNISH ADDITIVES.