Rhodia Limited

Church Dwight & Co., Inc.

Mark E Ventura

Manilal S Dahanayake

Steven A Bolkan

Melvin H Czechowski

Steven T Adamy

Richard D Miller

Raymond S Brown

Paul-Joel Derian

Raymond F Ashley

Alwyn Nartey

Yun Brian Yang

Christine Stairiker

Christine Beneciuk

David Stott

Nicole Nguyen

Jeremy LaCrosse

Stable aqueous compositions of silane quaternary ammonium compounds are provided by diluting an alkanol solution of the silane quaternary ammonium compound in water with at least one nonionic surfactant. The weight ratio of the silane quaternary ammonium compound and nonionic surfactant is provided to yield a composition which can remain stable in dilute aqueous compositions, can be applied to any surface and dry quickly to provide an anti-microbial film. The addition of an alkali metal bicarbonate salt to the composition improves the anti-microbial properties as well as the drying time of the composition.

Stable aqueous solutions of silane quat ammonium compounds

Textiles coated with aqueous compositions of silane quaternary ammonium compounds and alkali metal bicarbonates are provided with deodorization properties and protection from allergens, irritants, molds, dust mites, bacteria, and fungi.

The invention is directed toward a high performance clay-based animal litter that is comprised of a clay-based liquid-absorbing material, and at least one filler coated with at least one clumping agent. The particle size of the liquid-absorbing material is small and provides the litter with a 'sandy' appearance. The high performance litter is found to be surprisingly effective in containing odors and reducing tracking and dusting. It does not contain foaming agents and/or acids to trigger foaming, and does not utilize foams to block odors.

Clay-based superior animal litter

A two-phase paint and ink stripper composition comprises an aqueous phase containing a basic activator in the form of an amino-alkyl-alkanol and an organic phase which contains an alkylene carbonate and organic solvents. The paint stripper composition of the present invention is free from methylene chloride and does not contain monoethanol amine.

Paint and ink remover two-phase system

Highly alkaline caustic cleaners used in large scale industrial applications are stabilized and enhanced with improved surface tension reduction and decreased foaming properties through the incorporation of minor amounts of a surfactant composition comprising a alkylether hydroxypropyl sultaine surfactant and a nonionic ethoxylated surfactant.

Low foaming surfactant compositions useful in highly alkaline caustic cleaners

Contaminated aqueous systems can be cleaned using an ultra-filtration system that allows for high recovery yields of the surfactant employed therein for recycle and reuse. The system employs specific alcohol alkoxylate nonionic surfactants which remain polar and solvated at the higher operating temperatures of the system. The surfactant/contaminant containing aqueous system is ultra-filtered resulting in the surfactant passing through with the permeate at extremely high yields for recovery and reuse.

Recovery and reuse of nonionic surfactants from aqueous solutions

Contaminated aqueous systems can be cleaned using an ultra-filtration system that allows for high recovery yields of the surfactant employed therein for recycle and reuse. The system employs specific nonionic surfactants which remain polar and solvated at the higher operating temperatures of the system. The surfactant/contaminant containing aqueous system is ultra-filtered resulting in the surfactant passing through with the permeate at extremely high yields for recovery and reuse.

Contaminated aqueous systems can be cleaned using an ultra-filtration process that allows for the recovery of high yields of the surfactant employed therein for recycle and reuse. The system employs a specific class of sugar-derived nonionic surfactants which remain polar and solvated at the higher operating temperatures of the system. Specifically, these are sugar-derived nonionic surfactants more definitively known as the alkyl polyglycosides and the alkyl glucomides. The surfactant/contaminant-containing aqueous system is ultra-filtered resulting in the surfactant passing through with the permeate at extremely high yields for recovery and reuse.

Recovery and reuse of sugar-derived nonionic surfactants from aqueous

Improved surfactant recovery for recycle and reuse upon ultrafiltration of a surfactant-containing aqueous solution can be obtained using a betaine or amide oxide amphoteric surfactant in the aqueous cleaner/contaminant solution. The surfactant passes through the ultrafiltration membrane with the water in the permeate in very high amounts while the contaminants and other undesirable components are held back in the retentate.

Recovery and reuse of amphoteric surfactants from aqueous solutions

Improved surfactant recovery upon ultrafiltration of a surfactant-containing aqueous solution can be obtained using a system comprising anionic surfactants.

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Freehold, NJ, United States of America

Mark E Ventura