The Clorox Company

Sheldon N Lewis

Richard J Wiersema

Alfred G Zielske

Dale S Steichen

Ronald A Fong

Hao Ku

Clement K Choy

Maha Y El-Sayed

Susan A Anderson

Eugene A Mizusawa

Tracey L Casella

The inactivation in a laundry solution of a hydrolase enzyme by surfactant is prevented by the presence in the laundry solution of an amount of a non-charged enzyme activating means selected from oily hydrocarbons, hydrolyzable fatty acid ester substrates for the enzyme, e.g., triglycerides, essentially lipophilic organic compounds which are not substrates for the enzyme and which bear a polar substituent, and non-ionic surfactants which lower the oil to enzyme critical minimum molar ratio required to activate the enzyme.

Hydrolase surfactant systems and their use in laundering

A number of novel peracid precursors each have the general structure: ##STR1## wherein: Z is a leaving group, the conjugate acid of the leaving group being in the range of from about 4 to 15; R is a substituted or unsubstituted alkyl or alkenyl group having from about 1 to 18 carbon atoms; and M is hydrogen or an alkali or alkaline earth metal. A method is also disclosed for synthesizing a product as represented above wherein succinic anhydride, including an R constituent as defined above is dissolved in a water-miscible, non-nucleophilic solvent and an acid including a Z constituent as defined above is neutralized and deprotonated to form a nucleophile, the substituted anhydride and the nucleophile being combined to form the product. The product is a component in a dry bleach product, optionally including other adjuncts.

Alkyl monoperoxysuccinic acid precursors and method of synthesis

The invention provides novel bleaching compositions comprising peracid precursors with the general structure ##STR1## with R, R', R' and L as defined in the specification. Novel peracids and precursors are also herein disclosed. These peracid precursors provide new, proficient and cost-effective compounds for fabric bleaching.

Glycolate ester peracid precursors

A stable, isotropic fabric softening composition includes relatively high levels of a 2-n-alkyl-4-isothiazoline-3-one to provide immediate and residual mildewstatic activity on fabrics treated therewith. The composition also includes a quaternary ammonium or imidazolinium fabric softener having an iodine value of between about 20 and 70, an organic solvent matrix and optionally, a fatty acid soap, surfactant and pH adjusting agent, all to the promote the isotropic quality of the composition.

Isotropic fabric softener composition containing fabric mildewstat

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Lafayette, CA, United States of America

Sheldon N Lewis