JOHN A LARKIN
Electrician at Alabama Dr, Austin, TX

4827038, May 2, 1989

Aug 3, 1987

7/080929

John M. Larkin - Austin TX
George P. Speranza - Austin TX

Texaco Inc. - White Plains NY

C07C 9304

564505

A method for converting a bis(polyalkoxy)-N-alkylamine to a bis(diaminopolyalkoxy)-N-alkylamine has been discovered. The method comprises alkoxylating an alkylamine to a bis(polyalkoxy)-N-alkylamine. The alkylamine is selected to sterically hinder the resulting tertiary amine. The alkoxylate is then catalytically aminated according to well known procedures with a high yield of the diamine resulting. Compounds prepared by this method are of the formula: R--N--(PO. sub. x --NH. sub. 2). sub. 2 wherein: PO is propylene oxide, x ranges from 2 to 40, and R is a sterically hindering alkyl such as isopropyl or tertiary butyl. The compounds are useful for curing epoxy thermoset resins. They are uniquely suited to reactions with polyisocyanates to prepare plastic parts, such as automobile body panels, by reaction injection molding.

4806517, Feb 21, 1989

Mar 12, 1987

7/024932

Steven H. Vanderpool - New Braunfels TX
Lewis W. Watts - Austin TX
John M. Larkin - Austin TX
Terry L. Renken - Austin TX

Texaco Inc. - White Plains NY

B01J 2718

502208

This invention is directed to novel catalyst compositions based on a pelleted group IVb transition metal oxide to which about 0. 5 to about 7 wt. % of phosphorus is thermally chemically bonded by a novel process wherein the pellets are impregnated with a liquid water-soluble phosphorus compound containing phosphorus-oxygen bonds, thermally treated after removal of unabsorbed liquid for 0. 5 to 5 hours at 100. degree. -150. degree. C. to chemically bond the recited amount of phosphorus to the pellets followed by calcination at 200. degree. to 900. degree. C. to stabilize the pellets. Also disclosed is a regenerative process for preparing predominantly linear polyethylenepolyamines from ethylenediamine and monoethanolamine using the novel catalyst compositions.

4831191, May 16, 1989

May 23, 1986

6/867341

John M. Larkin - Austin TX

Texaco Inc. - White Plains NY

C07C 5114, C07C 5112, C07C 53124, C07C 5512

562517

Allyl formate is substantially selectively converted to isobutyric acid, n-butyric acid and/or glutaric acid by bringing the alyl formate into contact with activated carbon in the presence of carbon monoxide, water and formic acid and a halide promoted group VIII soluble metal catalyst optionally in the presence of a solvent. Isobutyric and n-butyric acids are preferentially formed in the presence of relatively low concentrations of water and formic acid whereas glutaric acid is preferentially formed in the presence of relatively higher concentrations of water and formic acid.

4588834, May 13, 1986

Oct 4, 1984

6/657565

John M. Larkin - Austin TX

Texaco Inc. - White Plains NY

C07C 6738

560233

Carboxylic acids, for example n-butyric and isobutyric are prepared from an olefin such as propylene in a process comprising passing a liquid feed consisting of an olefin, an alkyl halide or heterocyclic amine promoter, a protonic coreactant, and a low concentration of a soluble metal catalyst, optionally in the presence of a solvent, and a gas consisting essentially of carbon monoxide over a carbon bed maintained at a temperature of from about 200. degree. C. to about 400. degree. C. and a pressure of from about 500 psi to about 4000 psi or greater.

5189233, Feb 23, 1993

Aug 23, 1991

7/749346

John M. Larkin - Austin TX
James H. Templeton - Austin TX
Donald H. Champion - Pflugerville TX

Texaco Chemical Company - White Plains NY

C07C 500

585265

Disclosed is an improvement in a process for production of cyclohexane by liquid phase hydrogenation of benzene wherein no diluent is necessary, which comprises contacting benzene and hydrogen in the presence of a mixed catalyst bed comprising a first catalyst which is a less active hydrogenation catalyst selected from elements of Group VIII of the Periodic Table and a second, more active catalyst, comprising a Group VIII metal supported on an oxide, such as, for example, alumina, silica or titania at a temperature of about 40. degree. C. to about 300. degree. C. and pressure sufficient to keep the benzene liquid at the chosen reaction temperature.

4540821, Sep 10, 1985

Jan 26, 1981

6/228436

John M. Larkin - Austin TX
Ernest L. Yeakey - Houston TX
Lewis W. Watts - Austin TX

Texaco Inc. - White Plains NY

C07C 8508

564473

A process for the manufacture of aminopolyols and polyaminopolyols by continuous reductive amination of sugars in aqueous solution is described. Syrups such as corn syrups may be used directly for this process. It has been found that the lower the mol ratio of NH. sub. 3 to the sugar, with a ratio of 1 as the lower limit, the higher is the degree of nitrogen incorporation into the sugar. It is essential that the streams of ammonia and aqueous sugar solution be pumped to the reaction zone separately.

5072050, Dec 10, 1991

Oct 9, 1990

7/594464

John R. Sanderson - Leander TX
Edward T. Marquis - Austin TX
John M. Larkin - Austin TX

Texaco Chemical Company - White Plains NY

C07C 49175

568314

Mono-, di- and tri-ketones of polyoxyalkylene compounds prepared by a method whereby the terminal hydroxyl groups of polyoxyalkylene compounds are oxidized to ketone groups with an alkali metal or an alkaline earth metal hypochlorite oxidant in the presence of acetic acid are disclosed. These compounds are useful for preparing surface active agents or they may be reacted with amines to provide fuel additives.

6063145, May 16, 2000

Jun 26, 1998

9/105773

John M. Larkin - Austin TX
Wei-Yang Su - Austin TX
Terry L. Renken - Austin TX

Huntsman Petrochemical Corporation - Austin TX

C10L 122, C07C21700

44434

This invention concerns a fuel additive comprising an etheramine alkoxylate, and fuel compositions and additive concentrates made therefrom. The etheramine alkoxylate may be of formula: ##STR1## where R. sup. 1 is a straight or branched alkyl, or alkylaryl; R. sup. 2 is independently in each occurrence hydrogen or alkyl from 1 to 6 carbons; R. sup. 3 is independently in each occurrence hydrogen or alkyl of from 1 to 6 carbons; m averages from about 2 to about 20; and x and y each independently average from about 0 to 2, where x+y averages from about 1 to about 4.

6093854, Jul 25, 2000

Oct 14, 1999

9/418686

Wei-Yang Su - Austin TX
John Michael Larkin - Austin TX

Huntsman Petrochemical Corporation - Austin TX

C07C21300

564477

Disclosed herein is a process for producing alkanolamines from the reaction between a polyolefin epoxide and an organic amino compound under conditions of elevated temperature and pressure, in the presence of a catalytic amount of an alcohol. Higher reaction rates for alkanolamine production than provided in the prior art may be achieved by use of a process according to the invention. Alkanolamines having various levels of nitrogen may be produced by the invention.

4089867, May 16, 1978

Nov 11, 1976

5/740997

Roger G. Duranleau - Bridge City TX
John M. Larkin - Austin TX
Stanley R. Newman - Fishkill NY

Texaco Inc. - New York NY

C07D27108

260307G

Diacylfurazan oxides are prepared by catalytic dimerization of alpha-nitroketones.