The Standard Oil Company

Janice L Greene

Roman Loza

Arthur F Miller

Marty A Pichler

V Frances Gaylor

This invention describes a process for preparing liquid polyamides comprising contacting a nitrile, amine and water in the presence of a carbon dioxide catalyst.

Preparation of liquid polyamide from dinitrile and diamine

This invention describes a process for preparing polyamides comprising contacting a dinitrile, a diamine and water in the presence of a dicarboxylic acid. In one embodiment, nylon-6,6 is prepared by contacting adiponitrile, hexamethylene diamine and water in the presence of adipic acid.

Preparation of polyamide by contacting diamine, dinitrile, water,

An electrochemical method is provided for maintaining the optimum activity of copper-containing catalysts for the production of amides from nitriles and water. Also provided is a process for producing amides from nitriles and water by hydrolysis.

Electrochemical maintenance of optimum catalytic activity in

This invention describes a process for preparing amides comprising contacting a nitrile, amine and water in the presence of a carbon dioxide catalyst. In one embodiment, nylon-6,6 is prepared by contacting adiponitrile, hexamethylene diamine and water in the presence of carbon dioxide.

Preparation of polyamide from dinitrile, diamine, water, and CO.sub.2

Acetone is converted to allene by contacting the acetone with an alumina catalyst, such as .gamma.-alumina, at a temperature between about 300.degree. and 700.degree. C.

Manufacture of allene from acetone

Carbamates, such as ethyl carbamate, are prepared by contacting an alcohol, such as ethanol, with cyanogen and water in the presence of a dipolar, aprotic solvent, such as acetonitrile, and an acid catalyst, such as hydrochloric acid.

Manufacture of carbamates from cyanogen

Polymers containing amide linkages can be formed in good yields by the dehydrative addition polymerization of alpha, beta-unsaturated monocarboxylic acids or the ammonium salts thereof. These polymers are suitable for use as fibers, plastics, films and molding resins.

Process for polymerization of composition comprising (1)

A process for producing 2-pyrrolidone by the simultaneous hydrolysis and hydrogenation of succinonitrile at elevated temperatures and at hydrogen pressures below 500 psi in the presence of a hydrogenation catalyst.

Process for producing 2-pyrrolidone

A process for producing 2-pyrrolidone which comprises the simultaneous hydrolysis and hydrogenation of succinonitrile at elevated temperatures and pressures in the presence of a hydrogenation catalyst consisting essentially of nickel boride.

A process for producing 2-pyrrolidone by the simultaneous hydrolysis and hydrogenation of succinonitrile at elevated temperatures and pressures in the presence of a hydrogenation catalyst and a reaction promoter selected from the group consisting of 2-pyrrolidone and N-alkyl-2-pyrrolidone wherein the alkyl group contains from 1 to 6 carbon atoms.

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Chagrin Falls, OH, United States of America

Janice L Greene