Gulf Oil Corporation

Pennzoil Products Company

Gulf Research & Development Company

Pennzoil-quaker State Company

Shell Oil Comapny

Other

Penzoil-quaker State Company

William J Heilman

Leslie P Theard

Mical C Renz

Patricia A Antonoplos

Frank C Peterson

Thomas J Lynch

I-Ching Chiu

Barrett L Cupples

Wei Song

James C W Chien

Bruce E Wilburn

Paul J DesLauriers

David S Morrison

Clifford G Venier

Daniel J Hurley

A Norman Kresge

James C Chien

Wai Y Chow

Asoke Kumar Deysarkar

Abraham Robert De Kraker

Clarence D Bertino

Yajnanarayana Halmuthur Jois

Richard A Kemp

Michael P Squicciarini

Chiu I-Ching

James CW Chien

A process for the preparation of a synthetic predominantly single carbon number hydrocarbon fluid comprises the steps of: contacting an alpha olefin having a carbon number of 4 to 30 with a single site catalyst under conditions effective to produce reactive hydrocarbon oligomers that contain reactive double bonds and comprising predominantly dimers, trimers, and tetramers wherein at least 10 weight percent of such reactive hydrocarbon oligomers at least one of trimers and tetramers; separating at least one of said trimers and tetramers in said reactive hydrocarbon oligomers; dimerizing said separated one of said trimers tetramers by contacting said separated one of said trimers or tetramers with a dimerization catalyst thereby producing an unsaturated synthetic hydrocarbon fluid; and contacting said unsaturated synthetic hydrocarbon fluid with hydrogen in the presence of a hydrogenation catalyst thereby producing a synthetic hydrocarbon fluid having predominantly single carbon number.

Hydrocarbon compositions useful as lubricants

Polymer suspensions prepared with non-aqueous, oil-free carrier fluids, for use in oil or gas well servicing. The polymer suspensions typically comprise a hydrophilic polymer, an organic clay, a stabilizer, and a carrier fluid selected from propylene glycol and butylene glycol. The addition of isopropyl alcohol, a polar activator, lowers the viscosity of the suspension. The further addition of neopentyl glycol further lowers viscosity and improves cross-linking of the polymer. The composition is both stable and environmentally acceptable.

Environmentally acceptable polymer suspensions for oil field applications

One or more oligomers of an olefin are prepared in the presence of a single-site catalyst. Preferably, the olefin is an &#x3b1;-olefin, and the oligomers are a poly-alpha-olefin (PAO). The PAO so prepared is completely or substantially free of tertiary hydrogen resulting from isomerization. Consequently, the PAO possesses improved biodegradability, improved oxidation resistance, and/or a relatively higher viscosity index. The PAO has many useful applications, such as a component of a lubricant.

Synthesis of poly-alpha olefin and use thereof

A novel series of copolymers and terpolymers, useful as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an alpha-olefin of 3 to 20 carbon atoms, in the presence of a combination catalyst comprising a compound of a transition metal of Group IVb of the Periodic Table and an aluminoxane. The copolymer or terpolymer may be further processed by thermal cracking to yield novel cracked polymers, and the cracked polymers may be hydrogenated. The copolymers or terpolymers may also be hydroisomerized. All the polymers are useful as base oils for lubricating oils and consumer products.

Ethylene alpha-olefin polymers, process and uses

Various vinylidene-containing polymers are obtained in the presence of a single-site catalyst. For example, the polymers include ethylene/isobutene copolymer, ethylene/propylene/isobutene terpolymer, ethylene/styrene/isobutene terpolymer, ethylene/&agr;-methyl-styrene/isobutene terpolymer, propylene/isobutene copolymer, styrene/isobutene copolymer, and &agr;-methyl-styrene/isobutene copolymer. These polymers may be used to formulate lubricant oils.

Vinylidene-containing polymers and uses thereof

Ethylene-alpha-olefin polymers, processes and uses

A novel series of copolymers and terpolymers, usefull as base oils for synthetic lubricants, are produced by polymerization of ethylene, an alpha-olefin, and optionally a third monomer comprising an alpha-olefin of 3 to 20 carbon atoms, in the presence of a combination catalyst comprising a compound of a transition metal of Group IVb of the Periodic Table and an aluminoxane. The copolymer or terpolymer may be further processed by thermal cracking to yield novel cracked polymers, and the cracked polymers may be hydrogenated. The copolymers or terpolymers may also be hydroisomerized. All the polymers are useful as base oils for lubricating oils and consumer products.

Transparent stiff gel candles comprising a hydrocarbon oil, a wick, and one or more triblock, radial block or multiblock copolymer of a thermoplastic rubber, and optionally a diblock copolymer.

Transparent gel candles

Tetraalkylmethanes are synthetic lubricants. The preferred structure contains four straight chain alkyl groups which may be the same or different and have from 1 to 2 or 5 to 14 carbon atoms. Mixtures are also disclosed as are novel methods for preparation of the tetraalkylmethanes.

Tetraalkylmethanes as synthetic lubricants

Fully synthetic lubricating base oil compositions are formulated from blends of 50-97 wt % of synthetic hydrocarbons and 3-30 wt % isobutylene oligomers. The lubricating base oil composition 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.

Base oil for shear stable multi-viscosity lubricants and lubricants

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.

Health and beauty aid compositions

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.

Olefin polymer pour point depressants

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.

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.

Growing community of inventors

Houston, TX, United States of America

William J Heilman