Eastman-kodak Company

Eastman Chemical Company

Fred D Barlow, Jr

Charles Michael Buchanan

Alan W White

Matthew Davie Wood

Robert M Gardner

Steven C Gedon

Louis A Wilkin

David L Nealy

Lee R Partin

Melvin Glenn Mitchell

Alan Kent Wilson

James John Krutak, Sr

Kim S Chamberlin

Frank J Tortorici

Thomas Vernon McCray

Jesse R Langston

Edwin Taylor Boyd

This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic-aromatic copolyesters and/or polymeric compounds as well as fibers, molded objects, and films prepared therefrom.

Aliphatic aromatic copolyesters

A cellulosic ester has associated with the ester at least one near infrared fluorophore. A method for incorporating the near infred fluorophore into the cellulosic ester is also provided. In the method, the near infrared fluorophore is dissolved in a strong acid and precipitated to form an acid paste. The paste is then added to an activated cellulose, such as a hydrolyzed cellulose acetate, in the presence of at least one acid and acid anhydride. Advantageously, such marked cellulosic materials can be solvent spun into staple fibers which may be further utilized in known materials, webs and articles.

Method for making cellulose esters incorporating near-infrared

Aliphatic-aromatic copolyesters and cellulose ester/polymer blends

This invention relates to binary blends of cellulose esters and aliphatic-aromatic copolyesters, cellulose esters and aliphatic polyesters as well as ternary blends of cellulose esters and/or aliphatic polyesters and/or aliphatic aromatic copolyesters and/or polymeric compounds as well as fibers, molded objects, and films prepared therefrom.

A one step process for preparing cellulose diacetates from processed film having cellulose triacetate as a base. The process involves use of an organic acid such as acetic acid and a solvolysis agent such as an alkanol or water. Hydrogen and a hydrogenation catalyst are optionally employed. The process allows for a simple way of recycling a material that presently is not recycled to any appreciable extent.

Preparation of cellulose diacetate by recycling processed film

Ink compositions which are aqueous dispersions of a water-dispersible polymer, a Disperse dye, and a dihydroxybenzophenone or derivative thereof are stable with respect to precipitation.

Stabilization of ink compositions

An aqueous printing ink or its semiaqueous or substantially nonaqueous concentrates exemplified as comprising a substantially homogeneous system of the components:

Ink compositions and their preparation

Forming an aqueous printing ink or its semiaqueous or substantially nonaqueous concentrates exemplified as comprising a substantially homogeneous system of the components:

Coating process

A waste-treatment process for water-based printing operations which employ inks comprising aqueous dispersions of polyester or polyesteramide materials containing water solubilizing sulfo-salt groups, comprising providing in an agitated vessel a substantially homogenous system of water and multi-valent cation, adding the waste aqueous dispersion of polyester or polyesteramide material from the printing operation to the vessel, allowing ion interchange and insolubilization of the material in the water to occur, and physically separating the water from the insolubilized material.

Growing community of inventors

Kingsport, TN, United States of America

Fred D Barlow, Jr