摘要:
A poly(alpha-olefin/alkylene glycol) copolymer of the following formula: wherein R3, R4, Ra, and Rb are, independently, any of H, a C1 to C18 normal or branched alkyl radical, or a C1 to C18 aromatic radical or aromatic-containing alkyl radicals; wherein n and m, are, independently, integers from 1 to 1000; and wherein x is an integer from 0 to 10. There is also a process for making the copolymer. There is also a lubricant formulation having the copolymer.
摘要:
A process for the preparation of oligomeric poly alpha-olefins comprises oligomerizing low molecular weight PAO in the presence of an ionic liquid catalyst under oligomerization conditions. The low molecular weight PAOs used as a feed or feed component of the present process are the light olefinic by-product fraction including the dimers and light fractions from the metallocene-catalyzed PAO oligomerization process.
摘要:
A process for the preparation of oligomeric poly alpha-olefins comprises oligomerizing low molecular weight PAO in the presence of an ionic liquid catalyst under oligomerization conditions. The low molecular weight PAOs used as a feed or feed component of the present process are the light olefinic by-product fraction including the dimers and light fractions from the metallocene-catalyzed PAO oligomerization process.
摘要:
This disclosure provides low viscosity, low volatility aryl ether compounds represented by the formula: This disclosure also provides processes for producing the aryl ether compounds, lubricating oil basestocks and lubricating oils containing one or more of the aryl ether compounds, and a method for improving one or more of solubility and dispersancy of polar additives and/or sludge in a lubricating oil by using as the lubricating oil a formulated oil containing one or more of the aryl ether compounds.
摘要:
A low transition temperature mixture (LTTM) or deep eutectic solvent (DES) useful as a lubricating oil base stock and lubricating oil including a eutectic mixture of at least a first component and at least a second component. The at least first component comprises a hydrogen bond acceptor and the at least second component comprises a hydrogen bond donor. The eutectic mixture includes an equilibrium phase between the at least first component and the at least second component. The equilibrium phase does not exhibit physical characteristics of the at least first component in an unmixed state and the at least second component in an unmixed state. The at least first component and the at least second component form an intermolecular interaction between each other sufficient to prevent crystallization of the at least first component and the at least second component in the eutectic mixture. The eutectic mixture is a liquid at 20° C.
摘要:
A composition containing one or more sulfur-containing compounds represented by the formula (R1)a(X)(R2)b wherein R1 and R2 are the same or different and are the residue of an olefin (e.g., vinyl ether, acrylate, methacrylate, or vinyl ester) having from 4 to 40 carbon atoms, X is the residue of a thiol or polythiol, a is a value from 1 to 6, and b is a value from 0 to 6. The composition has a kinematic viscosity at 100° C. (Kv100) from 2 to 300 cst, a kinematic viscosity at 40° C. (Kv40) from 5 to 4000 cst, a viscosity index (VI) from −100 to 300, and a Noack volatility of no greater than 90 percent. A process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of solubility and dispersancy of polar additives in a lubricating oil containing the composition.
摘要:
A composition containing one or more sulfur-containing compounds represented by the formula (R1)a(X)(R2)b wherein R1 and R2 are the same or different and are the residue of a heteroatom-containing olefin having from 4 to 40 carbon atoms, X is the residue of a thiol or polythiol, a is a value from 1 to 6, and b is a value from 0 to 6. The composition has a kinematic viscosity at 100° C. (Kv100) from 2 to 300 cst, a kinematic viscosity at 40° C. (Kv40) from 5 to 4000 cst, a viscosity index (VI) from −100 to 300, and a Noack volatility of no greater than 90 percent. A process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of solubility and dispersancy of polar additives in a lubricating oil containing the composition.
摘要:
The synthesis of high performance polyvinyl ether (PVE) fluids using a Lewis acid based cationic polymerization process is disclosed. The polyvinyl ether fluid have repeating vinyl ether units of the general formula —[CH2—CH(O—R)]n, wherein R is comprised of a branched or linear alkyl group having at least 4 carbon atoms and n is a whole number representing the average number of repeating units in the polyvinyl ether. The resulting PVE fluids exhibit excellent lubricant properties, similar to poly-alpha olefins (PAOs), but the PVE fluids have the benefit of higher polarity than PAOs and thus have better solubility and dispersity of polar additives.
摘要:
This disclosure provides low viscosity, low volatility alkylated siloxane compounds and alkylated alkoxy silane compounds. This disclosure also provides processes for producing the alkylated siloxane compounds and alkylated alkoxy silane compounds, and lubricating oil basestocks and lubricating oils containing one or more of the alkylated siloxane compounds or one or more of the alkylated alkoxy silane compounds. This disclosure further provides a method for improving one or more of solubility and dispersancy of polar additives and/or sludge in a lubricating oil by using as the lubricating oil a formulated oil containing one or more of the alkylated siloxane compounds or one or more of the alkylated alkoxy silane compounds.
摘要:
A low transition temperature mixture (LTTM) or deep eutectic solvent (DES) useful as a lubricating oil base stock and lubricating oil including a eutectic mixture of at least a first component and at least a second component. The at least first component comprises a hydrogen bond acceptor and the at least second component comprises a hydrogen bond donor. The eutectic mixture includes an equilibrium phase between the at least first component and the at least second component. The equilibrium phase does not exhibit physical characteristics of the at least first component in an unmixed state and the at least second component in an unmixed state. The at least first component and the at least second component form an intermolecular interaction between each other sufficient to prevent crystallization of the at least first component and the at least second component in the eutectic mixture. The eutectic mixture is a liquid at 20° C.