Rohm and Haas Company

Dow Global Technolgoies LLC

Dow Silicones Corporation

Matthew Carter

Ralph Craig Even

Liang Chen

Andrew Hejl

Fanwen Zeng

Nanguo Liu

Carlos Alfonso Cruz

Jodi M Mecca

Muhunthan Sathiosatham

Yannick Saint-Gerard

Robert Scott Moglia

Andy Jun Li

Ibrahim Eryazici

Brian R Einsla

Matthew Jeletic

Tian Lan

Bryan L McCulloch

Jason S Fisk

Tzu-Chi Kuo

Douglas J Hasso

Miroslav Janco

John F Kohn

Hilda G Buss

Patricia Ansems Bancroft

James DeFelippis

John A Roper

Richard P Woodworth

Xiangyi Zhang

Tanvi S Ratani

Arash R Nowbahar

Bryan L Mcculloch

John A Roper Iii

James Defelippis

The present invention relates to a method comprising the steps of applying to a paper or paperboard substrate an aqueous dispersion of polymer particles which comprise structural units of a vinyl ester, vinyl alcohol, and an acrylate monomer, then drying the composition. The method provides a coating that has oil and grease resistance, mineral oil barrier performance, and beat scalability.

Process for preparing a coated paper article

The present invention relates to a method for preparing an aqueous dispersion of acrylate-siloxane copolymer particles as described herein. The polymer particles comprise structural units of an acrylate monomer; an acid monomer; and a siloxane acrylate monomer of formula I: where R, R, R, Y and x are as defined herein. The method provides an efficient way to prepare a high solids content aqueous dispersion of siloxane-acrylate hybrid copolymers with efficient incorporation of siloxane acrylate monomers, low residual monomer, and low generation of unwanted coagulum. The dispersion is useful for forming coatings with improved hydrophobicity, stain resistance, and aesthetic/haptic properties compared with conventional all-acrylic compositions.

Preparation of an aqueous dispersion of acrylate-siloxane copolymer particles

Provided is a method of modifying polycarbonate comprising blending the polycarbonate with composite particles, wherein the composite particles comprise

Method for modifying polycarbonate

Provided is a dispersion of composite particles in an aqueous medium, wherein the composite particles comprise

Polyolefin-acrylic particles

The present invention relates to a composition comprising an aqueous dispersion of first polymer particles functionalized with structural units of t-butyl methacrylate or t-butyl acrylate, and imbibed with a catalyst of Structure (I), where R, R, Rand Rare as defined herein, and a process for making the composition. The present invention also relates to an aqueous dispersion of core-shell polymer particles, wherein the first polymer particles are encapsulated in a shell having a high T. The imbibed first polymer particles and the core-shell polymer particles can be expanded in the dry state at significantly lower temperatures than reported in the prior art. 

Expandable polymer particles

Provided is a process for making a dispersion of composite particles comprising

Method for preparing polyolefin-acrylic particles

The present invention relates to a composition comprising an aqueous dispersion of copolymer particles comprising structural units of vinyl acetate, a cyclic ketene acetal monomer, and a monoethylenically unsaturated acid monomer, or a salt thereof; wherein the cyclic ketene acetal monomer is characterized by following structure:  where n and the R groups are as defined herein. The composition of the present invention provides a water-borne dispersion that is substantially free of volatile organic solvents and that provides a readily degradable polymer that is useful, for example, in the manufacture of biodegradable packaging products.

Aqueous dispersion of copolymer particles of vinyl acetate and a cyclic ketene acetal monomer

The present invention relates to a method comprising the steps of a) contacting under emulsion polymerization conditions vinyl acetate; a cyclic ketene acetal monomer; and a monoethylenically unsaturated acid monomer or a salt thereof; to form an aqueous dispersion of copolymer particles comprising structural units of vinyl acetate, the cyclic ketene acetal, and the monoethylenically unsaturated acid monomer or a salt thereof; wherein the cyclic ketene acetal monomer is characterized by following structure: where n and the R groups are as defined herein. The method of the present invention provides a water-borne dispersion that is substantially free of volatile organic solvents and that provides a readily degradable polymer that is useful, for example, in the manufacture of biodegradable packaging products.

Preparation of an aqueous dispersion of copolymer particles of vinyl acetate and a cyclic ketene acetal monomer

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Bala Cynwyd, PA, United States of America

Matthew Carter