North Carolina State University

Eastman Chemical Company

Soo Ah Jin

Koushik Ghosh

Saad A Khan

Richard J Spontak

Emily Facchine

Orlando Rojas

Aqueous mixtures can include cellulose nanocrystals and sulfonated polyester, where a glass transition temperature (T) of the sulfonated polyester is greater than 25° C. In some instances, exemplary aqueous mixtures also include one or more additives, such as pigment. Exemplary aqueous mixtures can be applied as a film that is typically hydrophobic and resilient against water at room temperature. Upon application of warm water, such as at temperatures of from about 30° C. to about 60° C., the film can be removed with no or limited abrasion and/or with no or little removal oils.

Aqueous mixtures comprising cellulose nanocrystals and sulfonated polyester

Suspensions can include a polar solvent, sulfonated polyester material dispersed in the polar solvent, and cellulose nanofibril material dispersed in the polar solvent. Suspensions disclosed and contemplated herein leverage polyester that can be used to independently control film formation and rheology. In some instances, polyesters used in suspensions disclosed herein can perform the role of two additives: aqueous thickener and film reinforcement.

Suspensions including cellulose nanofibril and polyester

Growing community of inventors

Cary, NC, United States of America

Soo Ah Jin