Louisiana State University and Agricultural & Mechanical College

Solutia Incorporated

Doris A Culberson

William H Daly

P Robert Peoples

Theresa M Ortega

Melissa A Manuszak-Guerrini

Mark A Brophy

Gregory D George

Bascum Harry Duke

Debra N Hild

Tingdong Lin

Ting D Lin

Water-soluble quaternary ammonium cellulosic derivatives of controlled charge density are disclosed. These derivatives are useful in cosmetic preparations, such as hair and skin formulations, for example hair conditioners. These quaternized cellulosic derivatives are useful as thickeners, conditioners, film formers, fixatives, emulsifiers, or additives in hair or skin formulations to improve combing, manageability, body, curl retention, moisture resistance, and binding of ingredients to keratin. Compared to existing agents, these compounds have improved temperature stability, improved interactions with surfactants (such as in shampoos), improved binding to keratin, improved mechanical properties, and can mend split ends on hair. A major advantage of these compounds is that they may be applied to hair directly from an aqueous solution, and do not require a volatile organic compound solvent as carrier. Alternatively, smaller amounts of VOC's may be used than is the case in current products, to improve drying times for the formulations. The compounds are also useful as antistatic agents, bactericides, flocculating agents, and as drug binding or drug delivery agents.

Cationic cellulose derivatives of controlled charge density useful in

Improved dyeing processes for yarn and fabric materials are described. Dye pattern definition on a textile material is enhanced by treating the fabric or the fibers from which it is made with a quaternary ammonium compound and by including in the dye composition a gum which will react with the quaternary ammonium compound to form a viscous gel. The gel minimizes migration of the dye prior to fixation of the dye, and therefore pattern definition is improved. Similar improvements can be obtained when space dyeing yarn that comprises fibers that have been so treated.

Dyeing process

A fiber finish composition is described which enhances the dyeability of the fiber or textile materials made from the fiber. The finish composition includes an alkyl substituted quaternary ammonium cation and a barrier agent. An aqueous dispersion of the finish composition is the preferred method of applying the finish composition to fibers. Also included is an improved method of dyeing fibers and textile materials using the fiber finish composition.

Fibers and textile materials having enhanced dyeability and finish

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Pensacola, FL, United States of America

Doris A Culberson