The United States of America As Represented by the Secretary of

Truman L Ward

Ruth R Benerito

Jacques J Hebert

Dorothy M Perrier

This invention relates to a process for converting cellulose to amino acids by radiofrequency plasma of nitrogen and hydrogen gases. Cellulose is placed between the electrodes in a radiofrequency plasma reaction chamber which is sealed and maintained at a reduced pressure. Hydrogen and nitrogen mixture is bled through the chamber and sufficient radiofrequency electric current applied until the cellulose is consumed, thereby producing a mixture of amino acids. The cellulose can be either cotton or wood derivatives.

Process for conversion of cellulose to amino acids by radiofrequency

A process for producing a polymeric-type film in the surface of cellulosic fibers is disclosed. Cellulosic fibers are irradiated in the colored area of a radiofrequency plasma of ammonia for a period of about 10 minutes to 2 hours in a reactor designed to admit ammonia between electrodes at a rate such that all of the ammonia molecules have been activated to plasma. A polymer coating is formed in the surface of the cellulosic fibers that is alkali resistant, water-repellent and improves the wrinkle recovery of the fabrics.

New surface in cellulosic fibers by use of radiofrequency plasma of

Certain chemically modified cotton fabrics have been treated with vapors of glycidol at reduced pressures in a heated chamber to impart improved wet and dry wrinkle recovery characteristics.

Process for imparting wrinkle recovery to cotton fabrics with vapors

Glasslike materials have been produced by heating plumbite-treated cellulosics in a limited oxygen atmosphere while in contact with a glass or ceramic surface. Cotton-lace, knits, and other designs of cellulosic materials can be applied to glass or ceramic surfaces by process of this invention. Glass or ceramic materials have been joined together to form a strong bond by placing a piece of the plumbite-treated cellulosic material between the glasses and heating the assembly in a limited oxygen atmosphere. Etching of glass has also been achieved by process of this invention.

Glassy materials from plumbites and cellulosics

Method of forming glassy materials from plumbites and cellulosics

Process for etching glass or ceramic surface

Partially carboxymethylated-cotton fabric prepared by a non-aqueous procedure is reacted with either ethylene carbonate or propylene carbonate in a heated, evacuated oven. The product of either reaction is a fabric with high conditioned and high wet wrinkle recovery.

Carboxymethylated cotton fabric with improved conditioned and wet

Partially Aminoethylated cotton fabric is reacted with either propylene carbonate (4-methyl 1,3 dioxol-2-one) or ethylene carbonate (1,3 dioxol-2-one) with potassium carbonate as catalyst. Reaction is carrid out in a heated vacuum oven. The resultant product has urethane crosslinks and improved wrinkle recovery properties.

Formation of urethane crosslinks in cellulose ethers incorporating amine

Cellulosic fabric is reacted with a mixture of diethylene glycol, dibasic acid, and either ethylene carbonate (1,3 dioxol-2-one) or propylene carbonate (4-methyl 1,3 dioxol-2-one) in a heated evacuated oven. The resultant product has polyester linear grafts and crosslinks and improved resistance to wrinkling.

Polyester grafts and crosslinks to cotton by reaction with heterocyclic

Electrically conductive glasslike films have been produced on the surface of various types of glass and porcelain by heating plumbite-treated cellulosics while one surface of the plumbite-treated cellulosic was in contact with glass or porcelain and the other surface of the cellulosic was covered with either aluminum foil or powder. The heating was carried out in a closed oven with a limited availability of oxygen. The various glasses and ceramics treated by the process of this invention were imparted a conductive coating or surface which appeared to be rigid with respect to abrasion and grey with respect to coloration.

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New Orleans, LA, United States of America

Truman L Ward