Eastman-kodak Company

Eastman Chemical Company

Other

Clyde Neal Clubb

Thomas James Devon

Steven Leroy Cook

Richard Kingsley Stuart, Jr

John Dayton Baker, Jr

Joseph Alexander Deloach

Bruce W Foster

Garrett Clements Luce

Pinguan Zheng

Michael Dean Funderburg

Jesus Gabriel Moralez

Larry E Brammer

A catalyst and process for preparation of dihydroxy esters from specified hydroxy aldehydes is disclosed. In one embodiment, a catalyst liquid is provided which comprises from 10 percent to 60 percent magnesium salt of a specified alkanoic acid or acids, and from 90 percent to 40 percent of a particular alkanoic acid or acids, the molar ratio of alkanoic acid to magnesium salt being from about 1.5 to 20.3. The catalyst solution or liquid contacts or is contacted with a specified hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester. In another embodiment, dihydroxy esters are derived from specified hydroxy aldehydes by first forming a magnesium catalyst containing liquid by reacting magnesium or magnesium oxide, under suitable conditions, with a suitable alkanoic acid or acids, the acid or acids being provided in excess in specified molar ratios. The magnesium salt-alkanoic acid liquid produced is then employed as a catalyst liquid to convert the respective hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester.

Process of using a soluble magnesium catalyst for preparation of

Disclosed is a process for the preparation of an amine by contacting in a reaction zone a water-soluble aldehyde, water, ammonia and hydrogen in the presence of a supported ruthenium catalyst at elevated temperature and pressure. The process is particularly useful for the preparation of 3-(aminomethyl)tetrahydrofuran by contacting an aqueous solution of 3-formyltetrahydrofuran with ammonia and hydrogen at elevated temperature and pressure in the presence of a supported ruthenium catalyst. The use of a supported ruthenium catalyst has been found to avoid the problem of catalyst leaching encountered when a nickel catalyst is used.

Preparation of amines

Soluble magnesium catalyst for preparation of dihydroxy esters

The present invention is directed to a hot-melt adhesive containing at least one propylene/1-hexane copolymer. The adhesive contains an amount of a low viscosity, substantially crystalline wax, having a melting point of about 90.degree. C. to about 125.degree. C., sufficient to improve the elastic delamination resistance of the adhesive. The adhesive are particularly useful in disposable diaper construction.

Hot-melt adhesive composition

The present invention is directed to a hot-melt adhesive containing at least one propylene/1-hexene copolymer. The adhesive contains an amount of a low viscosity, substantially crystalline wax, having a melting point of about 90.degree. C. to about 125.degree. C., sufficient to improve the elastic delamination resistance of the adhesive. The adhesives are particularly useful in disposible diaper construction.

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Longview, TX, United States of America

Clyde Neal Clubb