Dow Global Technolgoies LLC

Rohm and Haas Company

Jinyuan Zhang

Wei Cui

Hui Liu

Xiangting Dong

Ling Li

Yujiang Wang

Yawei Xu

Qingwei Zhang

Han Liu

Yurun Yang

Fu Chun Zhan

Fengzhe Shi

Yaobang Li

Yuehan Hu

Caiyun Li

Jiansheng Feng

Qian Shen

Yangping Zhu

An aqueous coating composition having a long pot life, a process for preparing such coating composition, and a method of preparing coatings having good adhesion to a substrate.

Aqueous coating composition

A multistage aqueous emulsion polymer comprising from 88% to 98% by dry weight, based on total dry weight of the multistage aqueous emulsion polymer, of a first polymer core; and from 2% to 12% by dry weight, based on total dry weight of the multistage aqueous emulsion polymer, of a second polymer shell, wherein the first polymer core and the second polymer shell each independently comprises, as polymerized units, one or more ethylenically unsaturated nonionic monomers, wherein the second polymer shell further comprises, as polymerized units, from 20% to 60% by dry weight, based on total dry weight of the second polymer shell, of an acid monomer, wherein said acid monomer is, as polymerized units, from 1.1% to 4.2% by dry weight, based on total dry weight of the multistage aqueous emulsion polymer. An aqueous coating composition comprising said multistage aqueous emulsion polymer.

Multistage aqueous emulsion polymer and aqueous coating composition formed therefrom

An aqueous coating composition providing the resulting coatings with balanced flexibility and anti-tacky properties, and a method of preparing the aqueous coating composition.

Aqueous coating composition and method of preparing the same

The present invention provides a composition comprising i) an acrylic polymer dispersion and ii) a polyurethane/acrylic hybrid; wherein the acrylic polymer has a Tg from 25&#xb0; C. to 80&#xb0; C.; the polyurethane/acrylic hybrid has a Tg from &#x2212;55&#xb0; C. to 0&#xb0; C.; and the minimum film formation temperature of the composition is lower than 10&#xb0; C. The present invention further provides a coating comprising the composition.

Aqueous composition

A polyurethane/acrylic hybrid dispersion comprising a polyurethane dispersion, acrylic monomers and ethylenically unsaturated phosphorus containing monomers. The weight ratio of the solid content of the polyurethane dispersion to the acrylic monomers and the ethylenically unsaturated phosphorus containing monomers is from 3:7 to 7:3. A process of making the polyurethane/acrylic hybrid dispersion.

Polyurethane/acrylic hybrid for elastomeric wall coatings

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Shanghai, China

Jinyuan Zhang