Rohm and Haas Company

Dow Global Technolgoies LLC

Dow Silicones Corporation

Gary William Dombrowski

Eric P Wasserman

Ralph Craig Even

Antony Keith Van Dyk

Zhenwen Fu

Andrew Swartz

Partha S Majumdar

Azize Ala

Robert Mitchell Blankenship

Alvin Michael Maurice

Arnold Stan Brownell

Kaoru Aou

Marianne P Creamer

Thomas H Kalantar

Caroline Slone

Dong Yun

Eric C Greyson

Pu Luo

Baoqing Zheng

Ozzie Moore Pressley

Matthew Jeletic

Qing Zhang

David M Conner

William Joseph Rosano

John Klier

Qinghao Meng

Daoshu Lin

Jia Tang

Aurelia De La Cuesta Sheppard

Shujun Shu

Steven G Arturo

Thomas R Tepe

Sharon M Vuong

Joseph Jacobs

Patrick E Hartnett

Andrew J Swartz

Catheryn L Jackson

Kenneth Lennon

Teresa A Phillips

John Charles Halligan

Keith Allen Alderfer

The present invention is a composition comprising a blend of a PVA based latex and an EA/MMA based polyacrylic latex. The composition of the present invention is useful in a paint formulation for providing a coating with superior scrub resistance over a formulation comprising a blend of a PVA based latex and a BA/MMA based polyacrylic latex.

Blend of polyacrylic and polyvinyl acetate latexes

The present invention relates to a composition comprising a) an aqueous dispersion of polymer particles comprising structural units of a phosphorus acid monomer or a salt thereof; and b) an aminosilane. The composition is effective for improving block resistance in such pigmented coating formulations.

Organophosphorus acid functionalized latex and an aminosilane

A two-component polyurethane composition comprising: an aqueous dispersion comprising an emulsion polymer and a specific sulphate and/or sulfonate surfactant, and a water-dispersible polyisocyanate; the emulsion polymer with a weight average molecular weight of 70,000 g/mol or less comprising, by weight based on the weight of the emulsion polymer, greater than 0.25% of structural units of a phosphorous-containing acid monomer and/or salts thereof, greater than 15% of structural units of a hydroxy-functional alkyl (meth)acrylate, structural units of an monoethylenically unsaturated nonionic monomer, and from zero to 10% of structural units of an additional acid monomer and/or salts thereof; and a process of preparing the two-component polyurethane composition.

Two-component polyurethane composition

The present invention relates to a deep base or accent coating composition comprising an acrylic based binder and a Znadditive. The composition of the present invention resists water staining better than comparable formulations that do not contain the additive.

Paint composition

The present invention relates to a composition, an aqueous dispersion of polymer particles functionalized with acetoacetoxyethyl groups and a COabating additive, an ion exchange resin functionalized with amine groups or quaternary ammonium salt groups or a combination thereof. The composition is useful for COabatement in acetoacetoxy functionalized latexes compositions.

[object Object]

The present invention provides two-component polyurethane compositions that are substantially free of VOCs and comprising, as one component, polyisocyanate compositions and, as a second component, a polyol which is chosen from a cycloaliphatic diol or polyol having a molecular weight of from 100 to 500 and containing one or more 4 to 7 member aliphatic ring and an oligomeric diol or polyol comprising the condensation reaction product of from 30 wt. % to 78 wt. %, based on the total weight of reactants used to make the oligomer, and an acrylic or vinyl emulsion polymer.

Waterborne two component polyurethane coating compositions comprising alicyclic rigid polyols

The present invention relates to a process for imbibing a step-growth polymer into thermoplastic latex particles and a composition made by such a process. The composition is useful, for example, as a coating, an adhesive, a sealant, a primer, a caulk, a stain, or a filler for a variety of substrates.

Latex particles imbibed with a thermoplastic polymer

The present invention provides emulsion copolymers and coating compositions containing the same having improved room temperature and hot block resistance in coatings wherein the copolymers have a broad measured glass transition temperature and are the copolymerization product of a vinyl monomer composition A and a softer vinyl monomer composition B having a Hansch parameter of at least 3.2, and containing one or more vinyl monomer M, such that each of which vinyl monomer(s) M would when homopolymerized provide a homopolymer having a measured Tg of 20&#xb0; C. or less, such as, for example, 2-ethylhexyl acrylate. In addition, the present invention provides methods for making the emulsion copolymers by a powerfeed process comprising feeding vinyl monomer composition A into a reactor from a feed vessel while feeding, simultaneously or after a delay, vinyl monomer composition B into the feed vessel while polymerizing the monomers in the reactor.

Powerfeed polymers having improved block resistance performance

The present invention relates to a stable aqueous dispersion of thermoplastic polymer particles imbibed with a thermosettable compound. The polymer particles are characterized by having a sufficient concentration of anti-agglomerating functional groups to stabilize the latex against agglomeration. The dispersion is useful as one part of a two-pack formulation.

Epoxy resin imbibed polymer particles

A multi-stage aqueous emulsion polymer, an aqueous coating composition including the emulsion polymer, and a method for providing a coating including the emulsion polymer are provided. The multistage emulsion polymer includes from 10% to 30% by wt., based on the wt. of the multistage emulsion polymer, of a first polymer shell having an acid number of from 5 to 100, the first polymer having a calculated Mn of from 1000 to 4500 and a calculated Tg of lower then 100&#xb0; C.; and from 70% to 90% by wt., based on the wt. of the multistage emulsion polymer, of a second polymer core having an acid number of from 0 to one-half the acid number of the first polymer, the second polymer having a calculated Mn of greater than 20,000.

Multistage emulsion polymer and coatings formed therefrom

A polymer composition including polymer particles comprising a first polymer and a second polymer is disclosed. The first polymer optionally has a crosslinked core and has a glass transition temperature in the range of &#x2212;30&#xb0; C. to 100&#xb0; C. The second polymer comprising select crosslinking groups has a glass transition temperature in the range of &#x2212;10&#xb0; C. to less than 18&#xb0; C. A coating composition comprising the polymer composition is provided. The polymer composition has good low temperature film formation and provides a film with an acceptable level of hardness.

Polymer composition

The present invention relates to a process for preparing an aqueous polymer dispersion containing polymer particles dispersed in an aqueous medium. The process includes providing first polymer particles; adding a hydrophobic polymerization blocker or a styrenic monomer polymerization blocker to the aqueous medium containing the first polymer particles; and preparing second polymer particles in the presence of the first polymer particles. The aqueous polymer dispersion contain first polymer particles and the second polymer that differ according to at least one attribute such as particle diameter, molecular weight, composition, glass transition temperature, or morphology; or contain polymer particles having a broad polydispersity. The aqueous polymer dispersion prepared by the process of this invention is useful in a wide range of applications, including paints, adhesive, binders for nonwovens, and binders for paper coatings.

Aqueous polymerization process for preparing an aqueous polymer dispersion

A multi-stage aqueous emulsion polymer including a first polymer having a calculated Hansch parameter &#x3e;2.0, the first polymer including 0.5-5 wt. % copolymerized acid monomer, based on the weight of the first polymer, and a second polymer including from zero to less that half the wt. % of acid monomer in the first polymer, based on the weight of the second polymer, the second polymer being from 50% to 85% of the total weight of the first polymer and the second polymer, wherein the difference between the calculated Tgs of the first and the second polymer is from 0&#xb0; C. to less than 20&#xb0; C. is provided. Also provided is an aqueous coating composition including the multi-stage emulsion polymer and a method for providing a coating.

Coating binder polymer and coatings

Growing community of inventors

West Chester, PA, United States of America

Gary William Dombrowski