Rohm and Haas Company

Dow Global Technolgoies LLC

Dow Silicones Corporation

Xiangting Dong

Qingwei Zhang

Han Liu

Ling Li

Jinyuan Zhang

Tao Wang

Junyu Chen

Tingke Zhang

Zhi Juan Gong

Qiaoqiao Cai

Wei Cui

Yujiang Wang

Juan Li

Yawei Xu

Caifeng Wang

Jintao Liu

Yuehan Hu

James Charles Bohling

Dan Liu

Yan Wu

Zhihua Liu

Hui Liu

Alvin Michael Maurice

Dong Yun

Siyuan Jiang

Baoqing Zheng

Yurun Yang

Fu Chun Zhan

Fengzhe Shi

Jia Tang

Shuang Liang

Yaobang Li

Yaguang Zhao

Caiyun Li

Han Lv

Qianqian Li

Jiansheng Feng

Huiling Yang

Qian Shen

Hongping Xu

Yangping Zhu

Changkun Piao

Hengtong Wei

Yan Luo

Zhijuan Gong

Siyuan c/o Rohm And Haas Company Patent Department Intellectual Property Coordinator Jiang

A multistage emulsion polymer comprising a first polymer and a second polymer comprising structural units of a nitrogen-containing heterocyclic monomer at specific weight ratios of the first polymer to the second polymer and a Tg difference between the first and second polymers; the multistage emulsion polymer suitable for use in coating applications to provide coating films with improved dirt pick-up resistance without compromising film formation properties.

Multistage emulsion polymer and process of preparing the same

An aqueous dispersion comprising a multistage polymer comprising a first polymer and a second polymer that comprises structural units of an ethylenically unsaturated siloxane monomer, the multistage polymer comprising, by weight based on the weight of the multistage polymer, 4.5% or more of structural units of the ethylenically unsaturated siloxane monomer, and the coagulum content of the aqueous dispersion is less than 2,000 ppm after filtration through a 44 micron sieve.

Aqueous polymer dispersion and process of making the same

The present invention provides an antimicrobial coating composition comprising (i) a polymer emulsion and (ii) from 20 ppm to 6000 ppm, by dry weight based on total dry weight of the coating composition, a silver, and the polymer emulsion comprises, as polymerized units, (a) ethylenically unsaturated nonionic monomers, and (b) from 0.01% to 20%, by dry weight based on total dry weight of the polymer emulsion, heterocyclic group-containing monomers.

Polymer emulsion and antimicrobial coating composition comprising the same

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 stable aqueous dispersion of multi-stage polymeric particles comprising a polymer and an oligomer, and an aqueous freeze-thaw stable coating composition comprising the aqueous dispersion providing coatings made therefrom with acceptable scrub resistance.

Aqueous dispersion of multi-stage polymeric particles and process of making the same

An aqueous polymer composition comprising an acetoacetoxy functional polymer, a metal pyrithione compound, and TEMPO and/or its derivative, showing less yellowing.

Aqueous polymer 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

A method of producing an aqueous polymer composition and a method of reducing yellowing of an aqueous polymer composition and a coating made 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

A new coating composition comprising, by dry weight based on the total dry weight of the coating composition, i) from 12% to 80% of polymer particles comprising, as polymerized units, by dry weight based on the total dry weight of the polymer particles, from 25% to 90%, of a vinyl acetate; and from 5% to 75%, of a vinyl ester of versatic acid and/or a vinyl ester of 2-ethyl hexanoic acid; and ii) from 0.1% to 6% of a wax; and iii) from 14% to 55% of a pigment.

Coating composition with improved liquid stain repellency

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

An aqueous coating composition having acceptable heat-age stability and providing the resultant coating film with good washability.

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

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

A new coating composition comprising, by dry weight based on the total dry weight of the coating composition, i) from 12% to 80% of polymer particles comprising, as polymerized units, by dry weight based on the total dry weight of the polymer particles, from 3% to 70% of a vinyl acetate; from 2% to 65% of a styrene; and from 20% to 55% of (meth)acrylate monomers; ii) from 0.1% to 6% of a wax; and iii) from 14% to 55% of a pigment. A process for making the coating composition.

Coating composition with improved liquid stain repellency and process for making the same

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Xiangting Dong