Rohm and Haas Company

Other

Newman M Bortnick

William J Work

Edward E LaFleur

Roger Graham

Norman L Holy

Robert M Amici

Michael Paul Hallden-Abberton

Graham Swift

Jiun-Chen Wu

Leslie Alan Cohen

William T Freed

Harry C Fromuth

Robert H Gore

Warren Harvey Machleder

Dennis Paul Lorah

Carlos Alfonso Cruz

Yi H Paik

Kathleen A Hughes

Ethan S Simon

Casmir S Ilenda

Robert E Jerman

David L Dunkelberger

James M Lipovsky

Timothy R Lynn

Eric Gustave Lundquist

Antony Keith Van Dyk

Eric Jon Langenmayr

Robert A Wanat

Jane Elizabeth Weier

James Henry Barrett

Richard J Piccolini

Biwang Jiang

Darnel Degraff

Jium-Chen Wu

Long-Jin Lin

James Nelson Alexander, Iv

Casmir S Ilendra

Composite compositions that include polymeric nanoparticles and clay nanoparticles, and a method for forming the compositions are provided. The polymeric nanoparticles of particular compositions have a mean diameter from 1 to 50 nm. Also provided are polymeric compositions including the composite compositions and a method for forming them.

Composite compositions including polymeric nanoparticles and clay nanoparticles

Colorant, dispersants, dispersions, and inks are provided which include crosslinked polymeric nanoparticles (hereafter 'PNPs') having a mean diameter in the range of from 1 to 50 nanometers, the PNPs including as polymerized units at least one multi-ethylenically-unsaturated monomer. Also provided are methods for preparing colorants, dispersants, dispersions, and inks which include PNPs.

Colorants, dispersants, dispersions, and inks

Solid media useful for a variety of applications, such as separations, catalysis, drug carriers, sensors, and combinatorial chemistry, are disclosed. The solid media are prepared with PNPs having a diameter of 1 to 50 nanometers, the PNPs including as polymerized units a multi-ethylenically-unsaturated monomer. Also provided are methods for preparing the solid media.

Solid media

Plastics and plastics additives including PNPs having a mean diameter in the range of from 1 to 50 nanometers, the PNPs including as polymerized units at least one multi-ethylenically-unsaturated monomer are provided. Also provided is a method for providing an improved plastic.

Plastic composition

A method for preparation of an amine from a carbonium ion precursor and a nitrile. The method comprises the steps of: (a) contacting the carbonium ion precursor and the nitrile with aqueous ammonium hydrogen sulfate to produce an amide; and (b) hydrolyzing the amide to the amine. Optionally, the ammonium hydrogen sulfate, nitrile and ammonia are recovered and recycled.

Waste-free process for manufacture of amides and amines from carbonium ion precursors and nitriles

Polymer blends of at least one polar polymer are prepared by admixture with a poly(vinyl alcohol) and a (meth)acrylate copolymer also containing vinyl amide and/or unsaturated acid units. The ternary compositions have attractive processing and performance properties.

Polymeric blends

Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.

Melt-processed polymer blends

A continuous process for preparing polymers is provided: The continuous process produces polymers from monoethylenically unsaturated acids or anhydrides, and a nitrogen-containing compound, optionally in the presence of a fluidizing agent. The polymers are useful as detergent additives, pigment and mineral dispersants, additives for fertilizers, and corrosion and scale inhibitors in boilers and cooling towers.

Continuous thermal polycondensation process for preparing polymers

This invention provides hydrolytically labile polyamide compositions and articles containing an ester derived moiety in the polymer backbone which will degrade after exposure to water over long periods of time.

Degradable polyamides

An improved process for the free radical copolymerization of a mixture of olefins and a polar monomer is disclosed. The process requires the catalytic isomerization of internally-unsaturated olefins to terminally-unsaturated olefins during the copolymerization reaction. The process results in improved yields in terms of solid product formation and in lower costs than conventional processes. The process is especially useful for the preparation of diisobutylene-maleic anhydride copolymers.

High solids copolymerization via in-situ isomerization

This invention relates to high temperature aqueous processes for the polymerization of monoethylenically unsaturated carboxylic monomers to produce low molecular weight, water-soluble polymer products useful as detergent additives, scale inhibitors, dispersants and crystal growth modifiers. Suitable monomers include acrylic acid, methacrylic acid, maleic acid, maleic anhydride, crotonic acid, and itaconic acid. The reactions are run at temperatures ranging from about 130.degree. C. to 240.degree. C., preferably from about 140.degree. C. to about 230.degree. C. The process can be continuous, semi-continuous, or batch.

High temperature aqueous polymerization process

Continuous thermal polycondensation process for preparing polypeptide

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Oreland, PA, United States of America

Newman M Bortnick