Continental Oil Company

Conoco Inc.

Charles M Starks

Bruce E Leach

Thomas E Goodwin

Kang Yang

Dean R Weimer

Robert G Jackson

Allan J Lundeen

Kenneth W Pober

Charles T Berge

Mark P Mack

Derry D Sparlin

Ronald J Convers

Morris A Johnson

Dennis Jack Royer

David V Porchey

O Carl Kerfoot

Donald R Napier

Paul L Fetzer

Homer L Hackett

Ronnie D Gordon

Terpolymers of polyolefin/acrylic acid or substituted acrylic acid/acrylonitrile are prepared by combining a polyolefin/acrylic acid or substituted acrylic acid copolymer with at least one dinitrile to form a mixture and reacting the mixture at a temperature of at least 200.degree. C. for a time sufficient to form the terpolymer. Copolymers of polyolefin/acrylonitrile are obtained when the reaction is carried to completion. The total reaction masses obtained comprising terpolymer or copolymer, cyclic imide, solvent, when used, and any unreacted dinitrile find use as pour point depressants in heavy hydrocarbon oils.

Process for the preparation of polyolefin/acrylonitrile copolymers and

Terpolymers of polyolefin/acrylic acid or substituted acrylic acid/acrylonitrile are prepared by combining a polyolefin/acrylic acid or substituted acrylic acid copolymer with at least one dinitrile to form a mixture and reacting the mixture at a temperature of at least 200.degree. C. for a time sufficient to form the terpolymer. Copolymers of polyolefin/acrylonitrile are obtained when the reaction is carried to completion. The total reaction masses obtained comprising terpolymer or copolymer, cyclic imide, solvent, when used and any unreacted dinitrile find use as pour point depressants in heavy hydrocarbon oils.

Process for the preparation of polyolefin/acrylonitrile coploymers and

Fluorinated alcohols are alkyoxylated using catalysts which provide reaction products having low surface tensions and which are stable in severe acidic conditions.

Method for alkoxylating fluorinated alcohols

Novel magnesium disiloxide compounds and methods for their preparation are disclosed. The magnesium disiloxides so obtained are useful starting materials for the preparation of active catalysts for olefin polymerizations.

Magnesium disiloxide compounds

A process for preparing a cation-exchange resin is disclosed. The process comprises:

Preparation of cation-exchange resin

Butylation of a mixture of xylenols and trimethylphenols gives a product which is suitable for use as a stabilizer for polyvinyl chloride. The material can be added to the reactor during polymerization as a shortstopper and retain effectiveness as a stabilizer in the finished polymer.

Chemicals for termination of polyvinylchloride polymerizations

2,6-xylenol admixed with meta,para-cresol is reacted with methanol in a contact with a titanium/SO.sub.4 /magnesium oxide catalyst to yield a product stream which can be readily distilled to give 2,6-xylenol in high purity. The particular catalyst used allows low loss of 2,6-xylenol during the reactions and low amounts of side products obtained.

Purification of 2,6-xylenol streams

Butylation of a mixture of xylenols and trimethylphenols gives a product which is suitable for use as a stabilizer for polyvinyl chloride. The material can be added to the reactor during polymerization as a short-stopper and retain effectiveness as a stabilizer in the finished polymer.

Chemicals for treatment of PVC

Phenol-formaldehyde resoles and novalacs are cured at temperatures of from about 0.degree. C. to about 150.degree. C. and at pressures ranging from about atmospheric pressure to about 5 atmospheres to produce highly cross-linked resins when divinylbenzene is used as a cross-linking agent together with a minor amount of an acidic catalyst.

Curing of phenol-formaldehyde resins

Predominantly aliphatic lower hydrocarbon materials may be obtained from carbonaceous solids by a sequence of steps comprising gasifying the carbonaceous solids, combining the gasification product stream with first and second internal recycle streams, separating certain impurities from the combined stream followed by cooling to liquefy and separate the hydrocarbon materials, directly reacting the remaining carbon monoxide and hydrogen in the presence of a catalyst to produce a first internal recycle stream, fractionating the separated hydrocarbon materials to separate and recover the predominantly aliphatic lower hydrocarbon materials from the higher hydrocarbon materials, subjecting the higher hydrocarbon materials to steam cracking to produce a second internal recycle stream, and recycling the internal recycle streams for combination with the gasification product stream as noted above.

Predominantly aliphatic lower hydrocarbon materials from carbonaceous

A process for preparing o-benzylphenol is disclosed. The process comprises heating benzyl phenyl ether, either in liquid or vapor phase, in the presence of an effective amount of activated alumina catalyst.

Preparation of o-benzylphenol

A method of preparing hydrocarbyl-substituted cresols is disclosed. The method comprises heating a mixture of mono- or di-hydrocarbyl-substituted cresols and an alcohol, which is benzyl alcohol or a C.sub.1 -C.sub.10 aliphatic alcohol, at an elevated temperature in the presence of a catalytic amount of alumina. The product contains at least one hydrocarbyl substituent corresponding to the hydrocarbon moiety of the alcohol used in the process. A typical process employs 4,6-di-t-butyl-m-cresol and isopropanol to prepare a product mixture containing a substantial amount of thymol.

Method of preparing hydrocarbyl-substituted cresols

A process for preparing cresols from di-hydrocarbyl-substituted cresols, wherein the hydrocarbyl groups contain from 3 to 7 carbon atoms, is disclosed. In the process the di-hydrocarbyl-substituted cresol is contacted with a catalyst (e.g. alumina) in the liquid phase at elevated temperatures and pressure. 4,6-di-t-butyl-m-cresol is a typical feedstock.

Preparation of cresols

A method for the production of n-alkylated cresylic acids such as n-hexyl resorcinol by direct alkylation of a cresylic acid such as resorcinol under liquid phase conditions.

N-alkylated cresylic acids via direct alkylation in a liquid phase

A process for preparing ortho-substituted cinnamyl phenols is disclosed. The process comprises heating a mixture of cinnamyl alcohol and phenol in the presence of an effective amount of activated alumina.

Growing community of inventors

Ponca City, OK, United States of America

Charles M Starks