Columbia Insurance Company

Benjamin Moore&co.

Yakov Freidzon

Robert J Sheerin

Michael Bochnik

Ning Wu

Yong Yang

Navin Tilara

Luz Clarena Shavel

Yue Chung Chen

Shijun Yang

Jean Frederick Mauck

Yue Chen

Jean Fredrick Mauck

The present invention is directed to a coating composition comprising a vinyl acrylic copolymer latex wherein said copolymer latex has a water contact angle of about 60&#xb0; or higher on the dried latex film surface, wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm/mm/24 hr. The invention is also directed to the copolymer latex itself. Further, the invention is a method of improving a coating's ability to withstand a high humidity environment comprising adding a vinyl acrylic copolymer latex to the coating composition wherein said copolymer latex has a water contact angle of about 60&#xb0; or higher on the dried latex film surface, and wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm/mm/24 hr.

Coatings for use in high humidity conditions

The present invention relates to paint extenders or open-time extenders, which are mixed with an architectural coating, such as aqueous latex paints, to increase the coating's open time. The open-time extender comprises acrylic or vinyl latex particles having a mean diameter of less than about 150 nm, and at least one crosslinkable monomer that can crosslink the latex particles in the open-time extender to the latex particles in the architectural coating at ambient conditions. The open-time extender also comprises water and the total solid content of the open-time extender is less than about 15% by weight.

Latex based open-time extenders for low VOC paints

The present invention relates to a coating composition containing a polymer blend dispersion including: a first polymer having a relatively low molecular weight and a relatively low glass transition temperature and comprising a self-crosslinking monomer; and a second polymer having a relatively high molecular weight and a relatively high glass transition temperature. Latex paint compositions and architectural coatings containing the coating composition according to the invention are also described herein, as well as substrates coated therewith.

Emulsion polymer blend coating compositions and methods for increasing chalky substrate adhesion

The present invention relates to a coating composition and a method for making same. The coating composition according to the invention can advantageously have a low content of volatile organic compounds and can be used in paint and architectural coatings applications for coating on an appropriate substrate. Methods of formulating the coating compositions according to the invention and methods for forming substrate-bound coatings with improved properties are also described herein.

Low-VOC compositions containing a polymeric latex, coatings made therefrom, substrates containing same, and methods for making same

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Bridgewater, NJ, United States of America

Yakov Freidzon