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US 5,012,023 AGranted
Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture
AssigneePennzoil Products Company
InventorsClifford G. Venier, Edward W. Casserly
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Abstract
Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structures. The cyclopentenes and cyclopentanes are prepared by hydrogenation from the corresponding cyclopentadiene intermediates. The cyclopentadienes are prepared by reaction with hydrocarylating agents or alcohols. Mixtures are also disclosed.
Claims17
A synthetic lubricating composition comprising:
- (A) A synthetic lubricant comprising:
- (1) a hydrocarbyl substituted cyclopentane;
- (2) a hydrocarbyl substituted cyclopentadiene;
- (3) a hydrocarbyl substituted cyclopentene;
- or
- (4) mixtures in any proportions of (1), (2), and (3);
- in admixture with
- (B) a natural lubricant or a synthetic lubricant other than a member of (A);
- and
- (C) an effective amount of at least one lubricating oil additive selected from the group consisting of pour point depressants, viscosity index improvers, dispersants, load carrying agents, rust inhibitors, anti-oxidants, and mixtures thereof.
7 more elements
Dependencies are inferred from the claim text.