Rohm and Haas Company

Dow Global Technolgoies LLC

Joseph David Tanzer

Dennis Paul Lorah

Ralph Craig Even

Edwin Hugh Nungesser

Ann Robertson Hermes

Wayne Devonport

John Michael Friel

Matthew E Belowich

Jerry William Washel

Jerome Michael Harris

Jordan Stracke

Homayoun Jamasbi

Henry Jude Eichman

Antony Keith VanDyk

Meghan Koback

The present invention is a composition comprising a stable aqueous dispersion of polymer particles comprising structural units of a phosphorus acid monomer or a salt thereof and structural units of a photoinitiator monomer. Gloss retention of paints containing the latex described herein is markedly improved over paints that do not have photoinitiator chemically bound to the latex particles.

Latex functionalized with phosphorus acid and photoinitiator groups

An aqueous composition including an aqueous dispersion of polymeric nanoparticles having a mean diameter of from 1 to 50 nanometers, the particles including, as polymerized units, at least one multi-ethylenically-unsaturated monomer and at least one ethylenically unsaturated water soluble monomer is discloseded. Certain embodiments of the composition include pigment particles and other polymer particles. The aqueous compositions include aqueous coating compositions.

Aqueous composition containing polymeric nanoparticles

A number of stable opacifying mixtures are disclosed which contain specific combinations and levels of titanium dioxide, thickeners, and dispersants. These stable mixtures may be employed in a method of making paints using prepaints or as a conventional component in a coating such as a paint, or in other end-uses where opacifying pigments are employed.

Stable mixtures containing opacifying pigments

A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.

Method of improving viscosity stability upon addition of a colorant component

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Fort Washington, PA, United States of America

Joseph David Tanzer