Patents Assigned to Pennzoil Products Company
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Patent number: 5221534Abstract: Health and beauty aid compositions comprise one or more health and beauty aid components contained in a gel comprising a mineral oil containing from blends of di- and triblock copolymers based on synthetic thermoplastic rubbers.Type: GrantFiled: February 4, 1991Date of Patent: June 22, 1993Assignee: Pennzoil Products CompanyInventors: Paul J. DesLauriers, William J. Heilman
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Patent number: 5210351Abstract: Cyclopentadienes are alkylated by initially reacting primary or secondary alcohols at elevated temperatures in the presence of an alkali metal hydroxide with removal of water to form dimers of said primary or secondary alcohols, and thereafter reacting said alcohol dimers with a cyclopentadiene to alkylate said cyclopentadiene.Type: GrantFiled: September 4, 1991Date of Patent: May 11, 1993Assignee: Pennzoil Products CompanyInventors: Clifford G. Venier, Edward W. Casserly
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Patent number: 5188724Abstract: A pour point depressant for lubricating oils comprises an olefin copolymer which contains alkyl side chains having carbon atoms, wherein the average side chain length in the copolymer is 10.5 to 12.0.Type: GrantFiled: February 6, 1991Date of Patent: February 23, 1993Assignee: Pennzoil Products CompanyInventors: William J. Heilman, Bruce E. Wilburn
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Patent number: 5180865Abstract: Fully synthetic lubricating base oil compositions are formulated from blends of 50-97 wt % of synthetic hydrocarbons and 3-50 wt % isobutylene oligomers. The lubricating base oil compositions have constant viscosity indexes which are higher than those of the components used to form the compositions. The synthetic hydrocarbon and isobutylene oligomers are combinable in various amounts with conventional additives to form multi-grade engine lubricants, which are shear stable.Type: GrantFiled: December 6, 1991Date of Patent: January 19, 1993Assignee: Pennzoil Products CompanyInventors: William J. Heilman, Clifford G. Venier
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Patent number: 5144095Abstract: Tertiary alkyl substituted cyclopentadienes are prepared by reaction of cyclopentadiene with a stoichiometric excess of a tertiary alkyl halide under phase transfer conditions. The tertiary-alkyl substituted cyclopentadienes are useful as synthetic lubricants.Type: GrantFiled: February 25, 1991Date of Patent: September 1, 1992Assignee: Pennzoil Products CompanyInventors: Clifford G. Venier, Edward W. Casserly
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Patent number: 5045119Abstract: Formulations for cleaning and restoring electrical cable which include a water-displacing additive, a water-proofing additive and a solvent. The formulations are particularly useful for cleaning and restoring electrical properties to paper insulated cables.Type: GrantFiled: September 11, 1990Date of Patent: September 3, 1991Assignee: Pennzoil Products CompanyInventor: Brent R. Dohner
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Patent number: 5015507Abstract: A method of converting a rusted surface to a durable one comprises applying a composition for converting a rusted metal surface to form durable preparative coatings thereon, the rust conversion composition comprising a reducing agent which will function to reduce trivalent iron to divalent iron on the substrate, an organic monomer which is capable of polymerization in the presence of the reducing agent, on the surface, and a free radical initiator which will function to polymerize the organic monomer to form the durable coating.Type: GrantFiled: January 31, 1989Date of Patent: May 14, 1991Assignee: Pennzoil Products CompanyInventors: Paul J. DesLauriers, William J. Heilman
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Patent number: 5012022Abstract: Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes and 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 hydrocarbylating agents or alcohols. Mixtures are also disclosed.Type: GrantFiled: March 15, 1989Date of Patent: April 30, 1991Assignee: Pennzoil Products CompanyInventors: Clifford G. Venier, Edward W. Casserly
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Patent number: 5012023Abstract: 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.Type: GrantFiled: March 15, 1989Date of Patent: April 30, 1991Assignee: Pennzoil Products CompanyInventors: Clifford G. Venier, Edward W. Casserly
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Patent number: 4999122Abstract: Non-aqueous lamellar liquid crystalline lubricant compositions comprise an organic acid component or a salt thereof, an organic amine component and a non-aqueous solvent which maintains the liquid crystalline properties of a mixture of the organic acid or salt thereof and the organic amine. The organic acid component is selected from the group consisting of alkyl phosphonic acids, aryl phosphonic acids, alkyl sulfonic acids and aryl sulfonic acids. The weight ratios of the components are such that the compositions exhibit lamellar liquid crystalline properties, the weight ratio of organic acid to organic amine is in the range of about 1:1 to about 5:1 and the solvent comprises not greater than about 75 weight percent of the composition.Type: GrantFiled: December 30, 1988Date of Patent: March 12, 1991Assignee: Pennzoil Products CompanyInventors: Frances E. Lockwood, James G. Lazar, Clarence M. Comer, Selda Gunsel, Stig E. Friberg
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Patent number: 4959995Abstract: Apparatus for unattended retrieval of samples of material to be tested for viscosity provides substantially continuous monitoring capability for a blending plant. A single device is used for both retrieving the samples from a pipe conveying the material and for delivering the samples to a measuring chamber of a viscometer. The device, such as a pump or a solenoid operated valve, is controlled by a sequence timer programmed to generate a timed sequence of signals. Preferably, the device is operated to provide a new sample to the viscometer when the measuring chamber is being heated, thereby displacing the previous sample without requiring a cleansing agent.Type: GrantFiled: January 17, 1989Date of Patent: October 2, 1990Assignee: Pennzoil Products CompanyInventors: Asoke K. Deysarkar, Ralph J. McCloskey
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Patent number: 4957704Abstract: Hydrocarbyl polycarboxylates are formed by the reaction of water and a basic neutralizing agent with a hydrocarbyl poly(succinic anhydride) of the formula R(succinic anhydride).sub.x, wherein R is a hydrocarbyl group derived from a crude or refined hydrocarbon wax having a melting point less than 150.degree. F. and x is an integer of from 3 to 8. The hydrocarbyl polycarboxylates serve as corrosion inhibitors in aqueous compositions.Type: GrantFiled: August 9, 1988Date of Patent: September 18, 1990Assignee: Pennzoil Products CompanyInventor: Brent R. Dohner
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Patent number: 4956111Abstract: A pour point depressant for lubricating oils comprises a poly(methacrylate) polymer having the repeating unit ##STR1## wherein R is an alkyl group having an average chain length in the polymer of 12.6 to 13.8, and n is an integer indicating the number of repeating units, the value of n being sufficient to provide a molecular weight of 10,000 to 300,000 for the polymer, the pour point depressant having the capacity to reduce the stable pour point to -35.degree. C., while being compatible with other additives such as viscosity index improvers and detergents.Type: GrantFiled: January 25, 1989Date of Patent: September 11, 1990Assignee: Pennzoil Products CompanyInventors: Bruce E. Wilburn, William J. Heilman
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Patent number: 4945017Abstract: A composition for conversion of a rusted metal surface to form a durable coating thereon consists essentially of a reducing agent which reduces an trivalent iron present on the surface, an organic monomer to which is capable of polymerization on the surface in the presence of the reducing agent and a free radical initiator which polymerizes the organic monomer to form the durable coating.Type: GrantFiled: March 3, 1989Date of Patent: July 31, 1990Assignee: Pennzoil Products CompanyInventors: Paul J. DesLauriers, William J. Heilman
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Patent number: 4929782Abstract: 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 hydrocarbylating agents or alcohols. Mixtures are also disclosed.Type: GrantFiled: March 15, 1989Date of Patent: May 29, 1990Assignee: Pennzoil Products CompanyInventors: Clifford G. Venier, Edward W. Casserly
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Patent number: 4897210Abstract: A lithium complex grease thickener for increasing the dropping point of a lubricating oil comprises as primary indgredients a lithium salt of 12-hydroxystearic acid or from alkyl esters thereof and a dilithium salt derived from dialky esters of terephthalic acid in a molar proportion of about 0.5 to 15:1.A lithium complex thickened grease of high lubricating activity, shear stability, penetration, water resistance and dropping point comprises a major proportion of a lubricating oil and about 1 to 45 wt % of the lithium complex thickener of this invention with respect to the thickened grease.Type: GrantFiled: July 12, 1988Date of Patent: January 30, 1990Assignee: Pennzoil Products CompanyInventor: George P. Newsoroff
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Patent number: 4891073Abstract: A surface-treating low-stability water-in-oil emulsion composition particularly adapted for cleaning a surface comprising at least one liquid hydrocarbon oil solvent, water and an emulsifying agent comprising an N-alkanoyl-2,2'-iminobis(ethyl alkanoate). The emulsion composition may further include a compressed gas whereby the composition may be applied to a surface in the form of an aerosol.Type: GrantFiled: April 13, 1989Date of Patent: January 2, 1990Assignee: Pennzoil Products CompanyInventors: Alexandra B. Shortt, D. V. Satyanarayana Gupta
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Patent number: 4873370Abstract: N,N-dialkyl-N'-(beta substituted) alkyl alkylene diamines of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are C.sub.1-4 hydrocarbon groups or H, but both R.sub.1 and R.sub.2 are not H, R.sub.4 is a saturated or unsaturated C.sub.14-24 hydrocarbon group, n=1-4 and X is OH or SH are adapted for use as friction and wear reducing additives in friction and wear reducing compositions.Type: GrantFiled: March 3, 1987Date of Patent: October 10, 1989Assignee: Pennzoil Products CompanyInventor: I-Ching Chiu
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Patent number: 4867911Abstract: A surface-treating low-stability water-in-oil emulsion composition particularly adapted for cleaning a surface comprising at least one liquid hydrocarbon oil solvent, water, and an emulsifying agent comprising an N-alkanoyl-2,2'-iminobis(ethyl alkanoate). The emulsion composition may further include a compressed gas whereby the composition may be applied to a surface in the form of an aerosol.Type: GrantFiled: January 19, 1988Date of Patent: September 19, 1989Assignee: Pennzoil Products CompanyInventors: Alexandra B. Shortt, D. V. Satyanarayana Gupta
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Patent number: 4863622Abstract: A phosphorous free antiwear/antifriction additive for lubricant oil is described. The additive is a fatty acid thio ester or a dialkyl disubstituted fatty acid thio amine having the formula of ##STR1## wherein R.sub.1 is a saturated or unsaturated hydrocarbon having 8 to 40 carbon atoms;R.sub.2, R.sub.3 and R.sub.4 are hydrocarbons having 1 to 4 carbon atoms; andn=1 to 4.Type: GrantFiled: March 31, 1988Date of Patent: September 5, 1989Assignee: Pennzoil Products CompanyInventor: I.-Ching Chiu