Rohm and Haas Company

Other

Rohm and Haas

David Richard Amick

Dennis Paul Lorah

William D Emmons

James Watson Neely

Antony Keith Van Dyk

Ralph Craig Even

Alvin Michael Maurice

Robert H Gore

Richard Foster Merritt

Ann Robertson Hermes

Kathleen A Hughes

John R Mattox

Wayne Devonport

Charles Elwood Jones

Ronald W Novak

William M Hann

Joseph M Hoefler

Catherine Ann Finegan

Katherine E Flynn

Rosemarie Palmer Lauer

Jerome Michael Harris

John Natoli

Cherylann Schieber

Sidney Melamed

Xiaohong Ci

New aqueous PNP dispersions are disclosed. A method of preparing an aqueous PNP dispersion from solvent-based PNPs having a diameter in the range of from 1 to 50 nanometers is disclosed. An associative thickener composition based on PNPs having an average of at least two phobes extending from the surface of said PNPs is also disclosed. The aqueous PNP dispersions are useful in aqueous-based industrial and consumer products, such as latex paint.

Aqueous nanoparticle dispersions

An aqueous polymeric composition containing select polymeric nanoparticles is provided. The select polymeric nanoparticles contain as polymerized units at least one multiethylenically unsaturated monomer and at least one water soluble monomer; and have a mean diameter in the range of from 1 to 50 nanometers. Also provided are aqueous polymeric compositions that further contain second particles such as pigment particles or second polymer particles. The aqueous polymeric composition is useful for preparing coatings having at least one improved property compared to a coating absent the select polymeric nanoparticles. Further, the aqueous polymeric composition is useful for treating wood. A coating prepared from the aqueous polymeric composition is also provided.

Aqueous polymeric composition containing polymeric nanoparticles and treatments prepared therefrom

An aqueous composition including a polymer having polymerized ethylenically unsaturated acid monomer is disclosed. The aqueous composition is prepared in the presence of select organic compounds. As provided is a process to prepare the aqueous composition. The aqueous composition is useful as a dispersant for inorganic particles, a thickener or rheology modifiers for various aqueous formulations, and as a dispersing resin.

Polymer composition and process for the preparation thereof

Disclosed are stable polyurethane thickener compositions and methods for stabilizing such compositions. Stabilized microbicide compositions and methods for stabilizing such microbicides are disclosed. Also disclosed are stable polyurethane thickener compositions containing microbicides.

Polymer stabilization

A method of improving the viscosity stability of an aqueous composition by the addition to the aqueous composition of a mixture of at least one multiphobe and at least one monophobe is disclosed. The method is particularly useful for stabilizing the viscosity of an aqueous composition containing at least one associative thickener, when surfactants or additives containing surfactants, such as for example colorants, particularly at high levels, are added to the aqueous composition.

Method of improving viscosity stability of aqueous compositions

A water dispersible powder composition is provided. The powder composition contains at least one film-forming polymer having at least one functional group and at least one reactive component that reacts to form a non-ionic bond with the polymer functional group following dispersion of the powder composition in water. The reaction between the polymer particles in the admixture and the reactive component renders the resulting coating water-resistant. The powder composition of this invention is useful for producing water-resistant coatings.

Water-dispersible powder composition for water-resistant coatings

This invention relates to a two stage aqueous emulsion polymerization process for making graft copolymers. In the first stage, at least one first ethylenically unsaturated monomer is polymerized in the presence of at least one mercapto-olefin compound to form a macromonomer with terminal functional groups. In the second stage, at least one second ethylenically unsaturated monomer is polymerized in the presence of the macromonomer such that a copolymer is formed with a backbone of polymerized units of the at least one second ethylenically unsaturated monomer and side chains of the macromonomer.

Graft copolymers prepared by two staged aqueous emulsion polymerization

S-substituted beta-thioacrylamide compounds have been discovered to be useful as biocides and fungicides. Compositions comprising the compound and isothiazolin-3-ones and/or carriers, methods of preparation of the compounds and methods of using the compounds and compositions are also disclosed.

S-substituted beta-thioacrylamide biocides and fungicides

S-beta-dicarbonyl substituted beta-thioacrylamide compounds have been discovered to be useful as biocides and fungicides. Compositions comprising the compound and isothiazolin-3-ones and/or carries, methods of preparation of the compounds and methods of using the compounds and compositions are also disclosed.

S-beta-dicarbonyl substituted beta-thioacrylamide biocides and fungicides

Non-aqueous solutions of 3-isothiazolones are stabilized against chemical decomposition by using organic hydroxylic solvents. These compositions exhibit bactericidal, fungicidal and algaecidal properties.

Stabilization of non-aqueous solutions of 3-isothiazolones

Detergent compositions include water soluble polymers which serve as builders, lime soap dispersants, and antiredeposition agents. The water soluble polymers, which fall into two structural classes, are especially useful in commerical heavy duty liquid detergent compositions, with which they are compatible in effective amounts. The water soluble polymers enhance several detergent properties such as antiredeposition and lime soap dispersants without a concomittant loss in other detergent composition characteristics. Further, the polymers are compatible with enzyme containing liquid detergents. In the first structural class surfactant radicals are distributed along the polymer chain, which also includes pendent carboxyl and/or carboxylate salt radicals. In the second structural class the polymers are terminated by a surfactant radical. The water soluble polymers are also effective dispersants for a number of particulate materials including kaolin clay and powdered coal, and inhibit the precipitation of calcium chloride and barium sulfate.

Water soluble polymers for detergent compositions

A process for stabilizing aqueous systems containing scale forming salts and inorganic particulates by adding to such systems an effective amount of selected low molecular weight water soluble polymers containing from about 10 to about 84 weight percent (meth)acrylic acid units, greater than 11 to less than about 40 weight percent acrylamido alkyl or aryl sulfonate units and from at least about 5 to about 50 weight percent of one or more units selected from vinyl esters, vinyl acetate and substituted acrylamides, is provided. The terpolymers and interpolymers used in the process provide improved phosphate, iron and zinc stabilization while maintaining their water solubility. Certain preferred polymers also exhibit a high degree of hydrolytic stability at high pH conditions.

Method of stabilizing aqueous systems

An improved article of a membrane permeable to water and impermeable to microbiocidal compounds containing therein a solid particulate microbiocidal composition which is useful in aqueous systems, wherein the composition is produced from aqueous solutions of a water-soluble microbiocidal compound absorbed in an inert, finely-divided water-insoluble solid carrier. Especially useful are microbiocidal 3-isothiazolones and 2-substituted-1,2-benzisothiazolones, and metal salt stabilized derivatives thereof, absorbed into a silicaceous diatomaceous earth in a sealed, perforated membrane, for example, a perforated bag, produced from polyethylene. These articles afford a form, which is safer for handling.

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Doylestown, PA, United States of America

David Richard Amick