Synthetic lubricant base stocks having an improved pour point
AssigneeTexaco Chemical Company
InventorsJohn R. Sanderson, Edward T. Marquis
Life of this patent
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Abstract
Synthetic lubricant base stocks having a low pour point are disclosed. These synthetic lubricant base stocks comprise a mixture of (1) oligomers prepared from a linear olefin having from 10 to 24 carbon atoms; and (2) alkylated decalin having an alkyl group containing from 10 to 24 carbon atoms. These synthetic lubricant base stocks may be prepared by hydrogenating the co-reaction products of a linear olefin having from 10 to 24 carbon atoms and naphthalene.
Claims17
A synthetic lubricant base stock having a low pour point, comprising a mixture of (1) reduced oligomers prepared from a linear olefin having from 10 to 24 carbon atoms;
- and (2) alkylated decalin having an alkyl group containing from 10 to 24 carbon atoms.
A synthetic lubricant base stock having a low pour point, comprising a mixture of (1) oligomers prepared from a linear olefin having from 12 to 18 carbon atoms;
- and (2) alkylated decalin having an alkyl group containing from 12 to 18 carbon atoms, wherein the mixture contains from about 5 to about 40 wt.% of said alkylated decalin.
A process for preparing synthetic lubricant base stocks having a low pour point, comprising the steps of (1) co-reacting naphthalene and a linear olefin having from 10 to 24 carbon atoms in the presence of an acidic montmorillonite clay;
- and (2) hydrogenating the mixture resulting from step (1), to obtain a mixture comprising reduced olefin oligomers and alkylated decalins.
A process for preparing synthetic lubricant base stocks having a low pour point, comprising the steps of (1) co-reacting naphthalene and a linear olefin having from 10 to 24 carbon atoms in the presence of an acidic montmorillonite clay;
- and (2) removing from the mixture resulting from step (1) any non-oligomerized linear olefin and non-alkylated naphthalene;
- and (3) hydrogenating the mixture resulting from step (2), to obtain a mixture of reduced olefin oligomers and alkylated decalins.
Dependencies are inferred from the claim text.