The Sherwin Williams Company

Swimc LLC

Shailesh S Shah

Brian Makowski

Jay A Reimann

Frank F Markovitz

James M Reuter

Gamini S Samaranayake

Kimberly A Koglin

Peter J Mackulin

Benjamin M Borns

Tom Wendland

Zhiyu Wang

Margaret A Patterson

Louisa D DiCola

Joseph J Kestner

Margaret Patterson

Louisa D Dicola

Frank F Markovitz Ii

A waterborne coating composition including a novel polymer latex and methods of preparing the polymer latex for the waterborne coating composition. The disclosed polymer latex, when incorporated into the waterborne coating composition, reduces gloss, and achieves a matte appearance without the need for and/or with reduced amounts of traditional inorganic matting additives. In one approach, the polymer latex disclosed herein includes latex particles having a core/shell arrangement configured to not only participate in film formation but also impact surface morphology of dried films to produce the low gloss coatings.

Polymer latex for matte films

Nanosilica-organic polymer composite latex

Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating. The composition may be prepared by reacting an excess amount of an aminosilane with a carbonate in aqueous media to yield a silylurethane, introducing an epoxysilane, and allowing the epoxysilane to react with the aminosilane to yield an aminodisilane. This reaction will result in a coating composition that comprises the silylurethane and the aminodisilane. The aqueous mixture of the silylurethane and the aminodisilane together constitute a coating composition that, upon curing, forms a dry-erase coating.

1K waterborne dry-erase coating composition

Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating. The composition may be prepared by providing an aminoalkoxysilane, and in the substantial absence of water, reacting a portion of the aminoalkoxysilane with a carbonate and reacting a portion of the aminoalkoxysilane with an epoxy compound. These reactions will result in a coating composition that comprises a mixture of alkoxysilylamines and alkoxysilylcarbamates. The coating composition can also include an alkyl amine in an amount effective to catalytically deprotect alkoxy groups to yield silanol groups, facilitating fast crosslinking.

1K 100% solids dry-erase coating composition

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Westlake, OH, United States of America

Shailesh S Shah