E.i. Dupont De Nemours and Company

The Chemours Company Fc, LLC

William R Cahill, Jr

Robert DiCosimo

Eugenia Costa Hann

Richard Alan Reynolds

David George Dipietro

Mark Scott Payne

Arie Ben-Bassat

Raymond Richard Zolandz

Robert Ray Burch

Christian Hoffmann

Jeffrey Jon Horsager

Jennifer Marie Altland

Jessica Linda Reisack

Donna Lynn Leger

Phillip Walker Strange

Carl W Erkenbrecher Jr

Katherine Lee Wilson

Shaun Francis Malone

Shaun F Malone

The present invention generally relates to topical skin care compositions having at least one cyclic diester. More specifically, the present invention relates to novel topical skin care compositions having at least one cyclic diester of an alpha hydroxy acid, and at least one polar non-aqueous solvent.

Skin care compositions having cyclic diesters and methods thereof

Disclosed herein are multi-component formulations for enzymatically producing aqueous solutions of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid formulations comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.

Enzymatic peracid generation formulation

Disclosed herein are multi-component peroxycarboxylic acid generation systems for enzymatically producing aqueous formulations of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid generation systems comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.

Multi-component peracid generation system

Disclosed herein are two-component enzymatic peracid generation systems and methods of using such systems wherein the first component comprises a formulation of at least one enzyme catalyst having perhydrolysis activity, a carboxylic acid ester substrate, and a cosolvent and wherein the second component comprises a source of peroxygen in water. The two components are combined to produce an aqueous peracid formulation useful as, e.g., a disinfecting or bleaching agent. Specifically, organic cosolvents are used to control the viscosity of a substrate-containing component and to enhance the solubility of the substrate in an aqueous reaction formulation without causing substantial loss of perhydrolytic activity of the enzyme catalyst.

Enzymatic peracid production using a cosolvent

Method for producing peroxycarboxylic acid

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Hockessin, DE, United States of America

William R Cahill, Jr