Eastman Chemical Company

Eastman-kodak Company

Other

Kevin J Edgar

Charles Michael Buchanan

Jonathan Edward Lawniczak

Norma Lindsey Buchanan

John Anthony Hyatt

Guy R Steinmetz

Juanelle Little Lambert

William W Blount, Jr

Richard T Bogan

Stephen Neal Falling

David M Teegarden

Alan Kent Wilson

Christine J Landry

Michael Bellas

Chung M Kuo

Stephen S Kelley

Ted C Germroth

Maria Teresa Alvarez-Wright

Richard William Fengl

The invention relates to methods of making carbohydrate and polyol esters suitable for use as plasticizers for polymer compositions. The invention also relates to plasticized polymer compositions comprising such carbohydrate and polyol esters. The invention also relates to articles prepared from such plasticized polymer compositions. The invention further relates to methods of using these compositions.

Carbohydrate esters and polyol esters as plasticizers for polymers, compositions and articles including such plasticizers and methods of using the same

The present invention relates to a process for preparing cellulose esters having a total DS/AGU of 0.1 to 3.0, said process comprising contacting the following:

Process for preparing cellulose esters using a sulfonic acid resin

Disclosed is a process for upgrading paper-grade wood pulp to dissolving grade pulp which is suitable for use in the preparation of viscose rayon, cellulose ethers and cellulose esters such as cellulose acetate. The process utilizes a sequence of caustic extraction, xylanase treatment and caustic extraction to remove most of the xylan, which may be recovered for use in the production of xylose, xylitol, and furans.

Process for the co-production of dissolving-grade pulp and xylan

The present invention relates to a process for preparing cellulose esters having a total DS/AGU of 0.1 to 3.0, said process consisting of contacting the following:

Direct process for the production of cellulose esters

The present invention relates to a process for preparing a substituted cellulose acetoacetate alkanoate without using a carboxamide/lithium chloride solvent system. The process involves contacting cellulose in a carboxylic acid diluent with an acetylating compound selected from the group consisting of a carboxylic acid anhydride and an acid chloride, an acetoacetylating compound selected from the group consisting of diketene, an alkyl acetoacetate and 2,2,6-trimethyl-4H-1,3-dioxin-4-one, and a mineral acid catalyst under conditions and in a molar ratio sufficient to cause the cellulose, acetylating compound and acetoacetylating compound to react to produce a substituted cellulose acetoacetate alkanoate.

Process for preparing a cellllose acetoacetate alkanoates

Process for reducing the degree of substitution of cellulose esters employing carboxylic acids as solvolysis promoters is disclosed. Exemplary cellulose esters are cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate propionate, and cellulose acetate butyrate.

Process for preparing cellulose esters by use of carboxylic acids

Water soluble or water-dispersible cellulose acetoacetate esters are prepared by contacting a cellulose material with diketene, an alkyl acetoacetate, 2,2,6-trimethyl-4H-1,3-dioxin-4-one or a mixture thereof and a carboxylic anhydride in a solvent system comprising lithium chloride plus a carboxamide. Compositions containing the cellulose acetoacetate esters are useful for coatings applications.

Cellulose acetoacetate esters used in coating compositions

Cellulose acetoacetate esters

Water soluble cellulose acetoacetates prepared by contacting a cellulose material with diketene, an alkyl acetoacetate, 2,2,6-trimethyl-4H-1,3-dioxin-4-one or a mixture thereof in a solvent system comprising lithium chloride plus a carboxamide. Compositions containing the cellulose acetoacetates and, optionally, a crosslinking agent are useful for coatings applications.

Cellulose acetoacetates

There are provided novel miscible blend compositions comprising (a) a cellulose ester and (b) a vinylphenol containing polymer. The blends do not exhibit large scale phase separation and provide properties which are essentially intermediate between those of either cellulose ester or vinylphenol containing polymers. The blends are useful for both molded and film applications as well as for coatings.

Growing community of inventors

Kingsport, TN, United States of America

Kevin J Edgar