Nalco Chemical Company

Iowa State University Research Foundation, Inc.

The Gillette Company

Jiansheng Tang

Peter E Reed

Jin-Shan Wang

John G Verkade

John David Morris

Kevin J Moeggenborg

Christopher P Howland

Bo Yang

Ronald V Davis

Phillip W Carter

Jeffrey R Cramm

Michael Robert St John

Daniel H Emmons

Michael A Kamrath

Karla Leum Stoner

Laura M Sherman

Donald E Govoni

Kenneth T Dodd

Shi-Liang Fu

Raymond T Cunningham

Promod Kumar

The present invention is directed to a non-aerosol shaving composition in the form of a gel, preferably a clear gel. The non-aerosol shaving gel comprises water, an alkanolamine soap, preferably a triethanolamine soap, and a solubilizing agent for the soap, wherein the soap is completely dissolved in the water and the amount of soap and solubilizing agent is sufficient to provide the soap in the hexagonal liquid crystal phase in the composition. The present invention is also directed to an improved shaving method in which a shaving composition of the present invention is applied to an area of skin, then said area is shaved, preferably with a wet razor.

Non-aerosol Shaving gel free of thickening and gelling agents

New and improved polyamino acid polymers and derivatized polyamino acid polymers are provided. Relatively high molecular weight poly(succinimides) are prepared by solid phase polymerization of aspartic acid or glutamic acid in the presence of a super phosphoric acid catalyst. The poly(succinimides) may be hydrolyzed to provide biodegradable polyaspartic acid or polyglutamic acid homopolymer having weight average molecular weights &gE;70,000. Higher molecular weight, water soluble, cross-liked polyamino acid polymers and gels are also provided. In a preferred embodiment, the poly(succinimides) are derivatized in aqueous media to provide storage stable, substantially linear, biodegradable polyamino acid polymers having pendant hydroxyl, ether, hydroxyalkylaminoalkyl, hydroxyalkoxyalkyl, carboxyl, sulfonoalkyl and/or phosphonoalkyl functionalities. The polymers are useful as chelants in various water treatment applications.

Biodegradable poly(amino acid)s, derivatized amino acid polymers and methods for making same

This invention relates to novel organic phosphonate compounds which can be used as water treatment agents. More specifically, this invention relates to 1,1 -diphosphonic acid N-oxides and water-soluble salts thereof for control of corrosion and scale in aqueous systems. Preferred N-oxides are morpholinomethane-1,1-diphosphonic acid N-oxide and N,N-dimethylaminomethane-1,1-diphosphonic acid N-oxide.

Stabilized substituted aminomethane-1, 1-diphosphonic acid n-oxides and

Several copolymers of aspartic acid and another monomer provide effective mild steel corrosion inhibitors and scale formation inhibitors under oil field conditions. The copolymers are polymers of modified polyaspartic acid mer units and polyaspartic acid mer units. The resulting polymers are biodegradable.

Biodegradable modified polyaspartic polymers for corrosion and scale

Methods for preventing corrosion and scale deposition in aqueous media are disclosed. The methods utilize water-soluble polymers having pendant derivatized amide functionalities for scale inhibition.

Utility of water-soluble polymers having pendant derivatized amide

Methods for dispersing and binding ceramic materials in aqueous media are disclosed. The methods utilize water-soluble polymers having pendant derivatized amide, ester or ether functionalities for dispersing and binding various classes of ceramic materials.

Preparation and utility of water-soluble polymers having pendant

A method is disclosed for controlling anionic trash and pitch deposition and treating coated broke which comprises the step of adding a polyammonium quaternary to a pulp and papermaking system. The polyammonium quaternary, which may be either branched or crosslinked, comprises at least one cationic monomer, preferably diallyldimethylammonium chloride, and at least one branching or crosslinking monomer, preferably N,N,N-triallylamine or N,N,N-triallylamine hydrochloride.

Method of using polyammonium quaternary for controlling anionic trash

New and improved polyamino acid polymers and derivatized polyamino acid polymers are provided. Relatively high molecular weight poly(succinimides) are prepared by solid phase polymerization of aspartic acid or glutamic acid in the presence of a super phosphoric acid catalyst. The poly(succinimides) may be hydrolyzed to provide biodegradable polyaspartic acid or polyglutamic acid homopolymer having weight average molecular weights.gtoreq.70,000. Higher molecular weight, water soluble, cross-linked polyamino acid polymers and gels are also provided. In a preferred embodiment, the poly(succinimides) are derivatized in aqueous media to provide storage stable, substantially linear, biodegradable polyamino acid polymers having pendant hydroxyl, ether, hydroxyalkylaminoalkyl, hydroxyalkoxyalkyl, carboxyl, sulfonoalkyl and/or phosphonoalkyl functionalities. The polymers are useful as chelants in various water treatment applications.

Biodegradable poly (amino acid)s, derivatized amino acid polymers and

A biodegradable anti-scalant for steam generators, boilers and other heat transfer equipment is provided. Anti-scalants prepared in accordance with the present invention include aspartic acid, poly(aspartic acid) and copolymers of aspartic acid and functionalized aspartic acid. Anti-scalants provided in accordance with the present invention are biodegradable and therefore more environmentally friendly than currently available anti-scalant for use with hard water. Methods and use of making anti-scalants are also provided.

Biodegradable aspartic acid polymers for preventing scale formation in

A biodegradable scale inhibitor and dispersant is provided. The scale inhibitor includes a copolymer comprising at least one of N-oxygenatedhydrocarbonamide monomers and at least one of amino acid monomers. A method of reducing scale build-up on heating exchanger surfaces that come in contact with an industrial water is provided by adding a copolymer comprising at least one of N-oxygenatedhydrocarbonamide monomers and at least one of amino acid monomers to the water system such as cooling towers.

Use of biodegradable polymers in prevention scale build-up

This invention relates to the use of iminoalkylenephosphonic acids to prevent corrosion, including both localized corrosion and general corrosion on iron based metal surfaces in contact with a corrosive system water in an aqueous system. The invention also relates to the use of the iminoalkylenephosphonic acids to control formation, deposition and adherence of scale at the surfaces of metals in contact with a scale-forming system water in an aqueous system.

Hydroxyimino alkylene phosphonic acids for corrosion and scale

Use of biodegradable polymers in preventing scale build-up

A biodegradable corrosion inhibitor, scale inhibitor and dispersant is provided. The inhibitor comprises one or more polymers from a family of poly(amino acid) polymers that include hydroxamic acid-containing sidechains. Methods of reducing corrosion and scale build-up and a method of dispersing solid particulates in a solution or slurry are provided by adding a polymer of the present invention to a solution or slurry.

Growing community of inventors

Naperville, IL, United States of America

Jiansheng Tang