Rohm and Haas Company

Dow Global Technolgoies LLC

Caifeng Wang

Yujiang Wang

Siyuan Jiang

Hui Liu

Dong Yun

Shaoguang Feng

Jianming Xu

Xiangting Dong

Qingwei Zhang

Han Liu

Jiguang Zhang

Shouxue Guo

Hongyu Chen

Ling Li

Alvin Michael Maurice

Shiling Zhang

Yunfei Lan

The present invention relates to a benzophenone derivative and an aqueous copolymer dispersion comprising the benzophenone derivative. This invention also relates to an aqueous coating composition comprising the aqueous copolymer dispersion. The benzophenone derivative provides better crosslinking efficiency and improvement to dirt pick up resistance performance.

Benzophenone derivative, aqueous copolymer dispersion and aqueous coating composition

The present invention provides a novel aqueous coating composition comprising a multi-stage aqueous emulsion polymer, an anionic colloidal silica, and a thickener. This novel aqueous coating composition provides low gloss, while maintaining good physical stability and transparency.

Aqueous coating composition and process of making the same

This invention relates to a process for preparing color dispersions comprising a first step of contacting water, a first colorant, and a polysaccharide selected from methylcellulose, hydropropylmethylcellulose, hydroxyethylmethylcellulose, hydroxybutylmethylcellulose, hydroxyethylethylcellulose, and the mixture thereof, to form a first colorant dispersion; a second step of contacting the first colorant dispersion with a protective composition comprising an aqueous dispersion of polymer particles, clay, and a peptizing agent to form a dispersion of protected first colorant particles; an optional third step of repeating the first step and the second step with a second colorant that is different from the first colorant to form a dispersion of protected second colorant particles; and an optional fourth step of mixing the dispersions of protected first and second colorant particles to form a multi-color dispersion. This invention also relates to a color dispersion comprising the first colorant dispersion, and a color coating comprising the color dispersion.

Process for preparing transparent/semi-transparent color dispersions and the color dispersions made thereof

The present invention provides a dispersion of polymer particles comprising, as polymerized units, by dry weight based on total dry weight of the polymer particles, from 85% to 99.9% ethylenically unsaturated nonionic monomers, from 0.01% to 4% phosphorous-containing (meth)acrylate monomers, and at least one neutralizer. The final pH of the polymer dispersion is above 6, and from 50% to 100% by mole of the total neutralizers are alcohol amines. The present invention further provides a paint comprising said dispersion. The paint has both satisfactory paint viscosity stability and improved paint performances such as scrub resistance, stain resistance, corrosion resistance and durability.

Polymer dispersion and its application in high pigment volume concentration paints

The present invention provides a binder composition comprising a first binder comprising by dry weight based on total dry weight of the first binder, from 5% to 98% of polymer particles, from 0.3% to 10% of a first polysaccharide, from 0.01% to 5% of a crosslinker, from 0.3% to 6% of a water-soluble metal cation, and from 0.05% to 3% of a cationic polyelectrolyte. The binder composition may further comprise a second binder comprising by dry weight based on total dry weight of the second binder, from 0.3% to 20% of the first polysaccharide, from 0.5% to 20% of a second polysaccharide. And in that case, the wet weight ratio of the first binder to the second binder is from 1:20 to 20:1. The present invention further provides a paint formulation comprising the binder composition.

Binder composition and a paint formulation made thereof

The present invention provides a new process of preparation for PUA with superior mechanical performance, such as elongation, and tensile strength. The process is solvent free, smooth, and robust. PU prepolymer prepared according to the present invention has low viscosity, and contains no particulate DMPA.

Process for making crosslinkable polyurethane/acrylic hybrid dispersions

The present invention relates to a polymer dispersion of polymer particles comprising phosphorous-containing (meth)acrylate monomers and phosphorus-containing allylic monomers. The present invention further relates to a coating composition made from the polymer dispersion with both satisfactory coating viscosity stability and improved coating performances such as scrub resistance, stain resistance, corrosion resistance and durability.

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Shanghai, China

Caifeng Wang