The Clorox Company

David L Deleeuw

Dale S Steichen

Frances E Mitchell

Alfred G Zielske

Steven A Bolkan

James D Mitchell

Kevin J Brodbeck

Richard J Suk

Bruce B Strand

Kathleen D Szuch

Dennis B Jenkins

Charles F Fritter

Roger V Lee

Ananth N Shenoy

Kelly James Brodbeck

Michael Koerner

Ramesh Hernlem

Kelly I Brodbeck

The invention provides a high water liquid enzyme prewash composition essentially free of hydrotropes, solvents and dispersants other than nonionic surfactants, and combines: a) effective amounts of a hydrolase enzyme stabilized with a soluble alkaline earth salt; b) a more hydrophilic, first nonionic surfactant having an HLB of greater than about 11; c) a more hydrophobic, second nonionic surfactant having an HLB of less than or equal to about 11; d) at least 80% or greater water; wherein the difference in HLB between said first and second nonionic surfactants is at least about 2, and said nonionic surfactants interact with said water to form an opalescent, structured liquid, said structured liquid both suspending said hydrolase and protecting said hydrolase against deactivation with said water. Suitable adjuncts, such as mildewstats/bacteristats, fragrances and dyes can be included.

High water liquid enzyme prewash composition

The invention relates to a bleaching composition containing an oxidant bleach and enzyme granules, in which enzyme stability is prolonged without undue loss of solubility despite intimate contact of said enzyme granules with said oxidant bleach. In the invention, an oxidant is selected from the group consisting of alkali metal perborates, alkali metal percarbonates, hydrogen peroxide adducts, and mixtures thereof, and combined with an enzyme which is coated substantially completely by a water soluble polymer, in which an additive selected from the group consisting of reducing agents, a transition metal, and mixtures thereof is incorporated to enhance enzyme stability.

Encapsulated enzyme in dry bleach composition

Peroxygen bleach compositions which can be used together with oxygen-sensitive wash aids are disclosed. Combination products comprising these bleach compositions together with the oxygen sensitive wash aids are disclosed as well as are methods of laundering employing them. The bleach compositions include a peroxygen source, a surface active or hydrotropic bleach activator or catalyst therefor and a quaternary ammonium salt. As compared to equivalent compositions not containing the quaternary ammonium salt, these bleach compositions are characterized by a delayed onset of active oxygen production when they are added to wash solutions. When these bleach compositions are used in combination with oxygen-sensitive wash aids, the sensitive wash aids have an initial period when they can act before the active oxygen level rises to a level that it interferes with their action. The bleach compositions of this invention which contain the added quaternary ammonium salt are also characterized by achieving higher ultimate levels of active oxygen than do equivalent compositions which do not contain the ammonium salt.

Method of laundering clothes using a delayed onset active oxygen bleach

The invention relates to a bleaching composition containing an oxidant bleach and enzyme granules, in which enzyme stability is prolonged without undue loss of solubility despite intimate contact of said enzyme granules and said oxidant bleach, comprising:

Delayed onset active oxygen bleach composition

The present invention provides stable bleach activator granules comprising:

Oxidant detergent containing stable bleach activator granules

Growing community of inventors

San Ramon, CA, United States of America

David L Deleeuw