Eastman Chemical Company

Eastman-kodak Company

George William Tindall

Randall L Perry

Scott Ellery George

Nick Allen Collins

John C Hubbs

Terry A Oldfield

Ruairi Seosamh O'Meadhra

Steven Thomas Perri

Suzanne Winegar Dobbs

Edward Enns McEntire

Chester Wayne Sink

Bhaskar Krishna Arumugam

Mark Robert Shelton

Ricky Thompson

Art T Spaugh, Jr

Terry Ann Oldfield

A sulfopolyester comprising repeat residue units from the reaction product dimethyl-5-sodiosulfoisophthalate, isophthalic acid, 1,4-cyclohexanedimethanol and diethylene glycol, has at least one property selected from: a) an acidity of greater than 0.030 measured as milliequivalents H/gram of sulfopolyester; b) a titanium concentration, measured as metal, of less than about 27 ppm, based on the amount of sulfopolyester; or c) an acidity of greater than 0.010 measured as milliequivalents H/gram of sulfopolyester, a pH of less than 6.0 and a concentration of a base compound of less than 0.0335 moles/kg of sulfopolyester. A method for making the water-dispersible or water-dissipative sulfopolyester of the present invention is disclosed. Aqueous dispersion having from 0.001 to about 35 weight % of the sulfopolyester of the present invention is also disclosed. The sulfopolyester is useful in making hair spray formulations suitable for pump or aerosol spray applicators.

Sulfopolyesters having improved clarity in water-dispersible formulations and products made therefrom

Process for the recovery of organic acids from aqueous solutions

Ester bonds are hydrolyzed in the conversion of substantially amorphous polyesters to their monomeric components, by being contacted with a mixture of (a) an alcohol, such as methanol, or glycol, (b) a polar aprotic solvent such as N-methyl-pyrrolidone or dimethyl sulfoxide and (c) an alkoxide or hydroxide such as sodium hydroxide.

Depolymerization of substantially amorphous polyesters

Ester bonds are hydrolyzed, such as in the conversion of polyesters to their monomeric components, by being contacted with a mixture of (a) an alcohol, such as methanol, or glycol, (b) a polar aprotic solvent such as N-methyl-pyrrolidone or dimethyl sulfoxide and (c) an alkoxide or hydroxide such as sodium hydroxide.

Ester hydrolysis and depolymerization of polyester and polycarbonate

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Church Hill, TN, United States of America

George William Tindall