Phillips Petroleum Company

Conocophillips Company

Ralph P Williams

Marvin M Johnson

Ronald G Abbott

John W Vanderveen

Charles A Drake

Robert M Parlman

Richard C Doss

Rector P Louthan

Donnie G Brady

Bernard A Baldwin

James T Gragson

Stan A Zisman

Harold Wayne Hill, Jr

Raymond Rohde

William S Howard

A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as a blending component of gasoline motor fuel. The novel catalyst comprises a mixture of a hydrogen halide and a sulfone. The novel alkylation catalyst is utilized in a novel process for alkylating olefin hydrocarbons with isoparaffin hydrocarbons.

Isoparaffin-olefin alkylation

This invention relates to the preparation of poly(dithio thiadiazole) by combining an oxidizing agent, a dithio thiadiazole, and an aprotic polar solvent thereby producing a polymer precipitant which may then be washed to remove residual contaminants.

Synthesis of poly(dithio thiadiazole by oxidative polymerization

A process for recovering copper-bearing mineral sulfides from a froth-floated, metallurgical concentrate by admixing the concentrate with a sufficient amount of N-mercaptoalkyl amide to depress the copper-bearing mineral sulfides during a flotation and recovering the non-floating copper-bearing mineral sulfides from the flotation process. In an embodiment, copper-bearing mineral sulfides are subjected to flotation process in the presence of a flotation agent with recovery of floated metallurgical concentrate containing copper-bearing mineral sulfides and thereafter refloating the metallurgical concentrate with admixing with N-mercaptoalkyl amide depressant to recover the non-floating copper-bearing mineral sulfides.

Recovering copper by flotation using N-mercaptoalkyl amide depressant

Heavy reaction product after separation as by distillation of light reaction product or diadduct from a reaction mixture obtained by reaction of olefinically unsaturated nitriles with monoolefinic hydrocarbons containing an allylic hydrogen atom is hydrogenated to produce a polyamine mixture useful as an epoxy resin hardener yielding cured resins exhibiting low water absorption.

Hydrogenated polynitrile mixture useful as an epoxy hardener

A curing agent package is provided for polymercaptan-terminated polymers comprising selected metal oxides and organonitrogen accelerators and promoters commonly considered as rubber vulcanization accelerators. More specifically, sealant and coating compositions are prepared by curing a mixture comprising a mercaptan-terminated polyether-polyester liquid polymer, a curing agent package of a non-lead metal oxide curing agent and an organonitrogen accelerator or promoter, and, optionally, non-elastomeric materials.

Sealant compositions containing thiol-terminated polyesters

The high temperature properties of an article having at least a portion of its surface formed of an arylene sulfide polymer is improved by treating such article with a treating agent selected from the group consisting of hydrogen peroxide, an alkali metal or alkaline earth metal hypochlorite, sulfuric acid, chlorine, sulfuryl chloride, nitrogen dioxide, chromium trioxide, alkali metal permanganates and nitric acid under conditions of concentration of treating agent, time and temperature to effect the desired improvement. Treated articles such as coated substrates and moldings exhibit increased high temperature surface hardness. Articles such as fibers, yarns, fabrics and films exhibit infusibility at 700.degree. F. (371.degree. C.).

Chemical treatment of poly(arylene sulfide)-containing articles

A prepolymer for use in preparing photocurable compositions is prepared by reacting an aliphatic diisocyanate having terminal isocyano groups and at least one alkyl side chain with a hydroxy-, mercapto- or amino-containing olefinically unsaturated compound. This prepolymer is compounded with a photosensitizer and, optionally, a polymercaptan to prepare photocurable compositions.

Prepolymers for photocurable compositions

Heavy reaction product after separation as by distillation of light reaction product or diadduct from a reaction mixture obtained by reaction of olefinically unsaturated nitriles with monoolefinic hydrocarbons containing an allylic hydrogen atom is hydrogenated to produce a polyamine mixture. The mixture thus produced is useful as an epoxy resin hardener yielding cured resins exhibiting low water absorption.

Hydrogenated polynitrile mixture and use as epoxy hardener

Dialkyltin bis(3-sulfolanylmercaptides) have been found to be excellent stabilizers against heat degradation of halogen-containing polymer, e.g., polyvinyl chloride. New tin-containing compounds are disclosed along with a process for making the same.

Dialkyltin bis(3-sulfolanylmercaptides) as thermal stabilizers for

The heavy reaction product obtained upon separation, as by distillation, of light reaction products of branched aliphatic dinitriles is useful as rust inhibitor in lubricating oils and greases.

Residue of hydrogenation product of branched aliphatic dinitriles as

A mixture of polyamines obtained as a heavy residue from the distillation of a reaction product from the hydrogenation of branched aliphatic dinitriles is useful as curing agent for epoxy resins showing lowered water absorption and significantly higher lap shear strength.

Heavy residue from hydrogenation of branched aliphatic dinitriles for

A reaction product of an olefinically unsaturated nitrile and a monoolefinic hydrocarbon containing an allylic hydrogen atom is used as plasticizer for a conjugated diene-unsaturated nitrile rubber.

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Bartlesville, OK, United States of America

Ralph P Williams