Eastman-Kodak Company

Jerry D Holmes

Robert R Schmidt, Iii

Don L Morris

Hugh J Hagemeyer, Jr

William J Gammans

Oxidation of polyethylene glycols to dicarboxylic acids

A process for the production of a carboxylic acid by the reaction of a liquid lower alkanol with carbon monoxide at a temperature of from about 150.degree. C. to about 250.degree. C. and a carbon monoxide pressure of from about 2,000 psig to about 10,000 psig in the presence of a soluble liquid phase catalyst prepared from the following ingredients: (1) MX.sub.n wherein M is selected from the group consisting of Co and Ni, X is selected from the group consisting of carboxylate anions of from 2 to 10 carbon atoms, halides, oxides, acetyl acetonate, carbon monoxide, and hydrogen; and n is from 1 to 5; (2) R.sub.3 P wherein R is alkyl, aryl, or alkylaryl of from 4 to 10 carbon atoms; and (3) hydrogen iodide or an iodide source such as iodine, alkyl iodides and alkali metal or alkaline earth iodides.

Nickel and cobalt containing carbonylation catalyst compositions for the

The invention relates to a process for the treatment of substantially amorphous polyolefins to provide permanently tacky, low viscosity materials which have useful pressure-sensitive adhesive properties. These permanently tacky amorphous polyolefin homo- and copolymers, as well as blends of such amorphous polyolefins with crystalline polyolefins containing up to 20 weight percent crystalline polyolefin, are novel pressure-sensitive adhesives.

Substantially amorphous polyolefins useful as pressure-sensitive

A process for the production of a carboxylic acid by the reaction of a liquid lower alkanol with carbon monoxide at a temperature of from about 150.degree. C. to about 250.degree. C. and a carbon monoxide pressure of from about 2,000 psig to about 10,000 psig in the presence of a soluble liquid phase catalyst prepared from the following ingredients: (1) MX.sub.n wherein M is selected from the group consisting of Co and Ni, X is selected from the group consisting of carboxylate anions of from 2 to 10 carbon atoms, halides, oxides, acetyl acetonate, carbon monoxide, and hydrogen: and n is from 1 to 5; (2) R.sub.3 P wherein R is alkyl, aryl, or alkylaryl of from 4 to 10 carbon atoms; and (3) hydrogen iodide or an iodide source such as iodine, alkyl iodides and alkali metal or alkaline earth iodides.

Process for the production of carboxylic acids

The present invention relates to a process for the manufacture of 2,2-disubstituted propiolactones from isoanhydrides and formaldehyde, as shown in the following equation: ##STR1## wherein R and R.sup.1 individually may be a straight- or branched-chain alkyl, aryl or aralkyl group having 1 to 10 carbon atoms. The reaction is conducted at a temperature of from about 190.degree. C. to about 400.degree. C. in the presence of the metal oxide-silica gel complex which results from heating the calcined residue of a salt of a metal selected from the group consisting of Ta, Ti, Nb and Zr supported upon a silica gel in the presence of nitrogen and steam at a temperature of from about 650.degree. C. to about 1000.degree. C. which complex has additionally been treated by soaking in a mineral acid at a temperature of from about 25.degree. C. to about 100.degree. C. for from about 1 to about 4 hours.

Catalyst for the production of 2,2-disubstituted propiolactones

The present invention relates to a new process for the manufacture of .alpha.,.beta.-unsaturated acids and their anhydrides from formaldehyde, and a saturated acid anhydride containing 1 less carbon atom in the hydrocarbon moiety.

Manufacture of .alpha.,.beta.-unsaturated acids and anhydrides

Production of 2,2-disubstituted propiolactones

The present invention relates to a process for the manufacture of 2,2-disubstitued propiolactones from isoanhydrides and formaldehyde, as shown in the following equation: ##STR1## wherein R and R.sup.1 individually may be a straight- or branched-chain alkyl, aryl or aralkyl group having 1 to 10 carbon atoms. The reaction is conducted at a temperature of from about 190.degree. C. to about 400.degree. C. in the presence of a metal oxide-silica gel complex which results from heating the calcined residue of a salt of a metal selected from the group consisting of Ta, Ti, Nb and Zr supported upon a silica gel in the presence of nitrogen and steam at a temperature of from about 650.degree. C. to about 1000.degree. C.

An improved process for the production of aliphatic nitriles having two to six carbon atoms by the reaction of an aliphatic carboxylic acid with ammonia in the presence of a catalyst followed by effluent distillation. The improvement lies in the addition of a portion of the aliphatic carboxylic acid after the reactor but before distillation whereby ammonium carboxylate formed in the reaction and dissociated by distillation is reformed to the carboxylate thus preventing the escape of dissociated ammonia and whereby the aliphatic carboxylic acid portion is recycled to the reaction.

Preparation of nitriles

The present invention relates to a process for the manufacture of 2,2-disubstituted propiolactones from isoanhydrides and formaldehyde, as shown in the following equation: ##SPC1## Wherein R and R.sup.1 individually may be a straight- or branched-chain alkyl, aryl or aralkyl group having 1 to 10 carbon atoms. The reaction is conducted at a temperature of from about 190.degree.C. to about 400.degree.C. in the presence of a metal oxide-silica gel complex which results from heating the calcined residue of a salt of a metal selected from the group consisting of Ta, Ti, Nb and Zr supported upon a silica gel in the presence of nitrogen and steam at a temperature of from about 650.degree.C. to about 1000.degree.C.

Growing community of inventors

Longview, TX, United States of America

Jerry D Holmes