Patents by Inventor Xiangting Dong

Xiangting Dong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10155832
    Abstract: 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.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: December 18, 2018
    Assignee: Rohm and Haas Company
    Inventors: Han Liu, Xiangting Dong, Qingwei Zhang, Caifeng Wang
  • Publication number: 20180282462
    Abstract: 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.
    Type: Application
    Filed: December 21, 2015
    Publication date: October 4, 2018
    Inventors: Xiangting Dong, Ling Li, Jinyuan Zhang, Wei Cui, Han Liu, Qingwei Zhang
  • Publication number: 20180208778
    Abstract: 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.
    Type: Application
    Filed: September 22, 2015
    Publication date: July 26, 2018
    Applicant: Rohm and Haas Company
    Inventors: Han Liu, Xiangting Dong, Qingwei Zhang, Ling Li
  • Patent number: 10017663
    Abstract: 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.
    Type: Grant
    Filed: September 22, 2013
    Date of Patent: July 10, 2018
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Yuehan Hu, Jinyuan Zhang, Xiangting Dong, Yujiang Wang
  • Patent number: 10005921
    Abstract: 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.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: June 26, 2018
    Assignee: ROHM AND HAAS COMPANY
    Inventors: Qiaoqiao Cai, Xiangting Dong, Juan Li, Tao Wang, Tingke Zhang
  • Publication number: 20170335040
    Abstract: 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.
    Type: Application
    Filed: November 13, 2014
    Publication date: November 23, 2017
    Inventors: Han Liu, Xiangting Dong, Qingwei Zhang, Caifeng Wang
  • Patent number: 9790376
    Abstract: Provided is a process for forming an antimicrobial polymer composition comprising: contacting together at least one initiator, at least one promoter, at least one reductant, and at least one monomer, under emulsion polymerization conditions to form a base polymer; and mixing with the base polymer an antimicrobial complex; wherein the at least one initiator is a peroxidic compound and the at least one reductant is an ascorbic compound.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: October 17, 2017
    Assignee: Rohm and Haas Company
    Inventors: Han Liu, Xiangting Dong, Qingwei Zhang, Tao Wang
  • Patent number: 9708501
    Abstract: 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.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: July 18, 2017
    Assignee: Rohm and Haas Company
    Inventors: Han Liu, Xiangting Dong, Qingwei Zhang, Caifeng Wang
  • Patent number: 9676932
    Abstract: The present invention relates to a composition of a stable aqueous dispersion of polymer particles comprising structural units of a) vinyl acetate; b) a vinyl ester of a branched carboxylic acid monomer; and c) a phosphorus acid monomer. The composition of the present invention provides vinyl ester/phosphorus acid based polymer particles that improve hiding efficiency in pigmented coatings formulations.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: June 13, 2017
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Qiaoqiao Cai, Junyu Chen, Xiangting Dong, Tingke Zhang, James C. Bohling
  • Publication number: 20170101549
    Abstract: 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.
    Type: Application
    Filed: April 17, 2014
    Publication date: April 13, 2017
    Inventors: Han Liu, Xiangting Dong, Qingwei Zhang, Caifeng Wang
  • Publication number: 20160304723
    Abstract: Provided is a process for forming forming an antimicrobial polymer composition comprising: contacting together at least one initiator, at least one promoter, at least one reductant, and at least one monomer, under emulsion polymerization conditions to form a base polymer; and mixing with the base polymer an antimicrobial complex; wherein the at least one initiator is a peroxidic compound and the at least one reductant is an ascorbic compound.
    Type: Application
    Filed: December 25, 2013
    Publication date: October 20, 2016
    Inventors: Han Liu, Xiangting Dong, Qingwei Zhang, Tao Wang
  • Publication number: 20160257837
    Abstract: An aqueous coating composition having acceptable heat-age stability and providing the resultant coating film with good washability.
    Type: Application
    Filed: October 29, 2013
    Publication date: September 8, 2016
    Inventors: Qingwei Zhang, Hongping Xu, Han Liu, Xiangting Dong
  • Publication number: 20160257847
    Abstract: 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.
    Type: Application
    Filed: September 22, 2013
    Publication date: September 8, 2016
    Applicants: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Yuehan Hu, Jinyuan Zhang, Xiangting Dong, Yujiang Wang
  • Publication number: 20160230034
    Abstract: 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.
    Type: Application
    Filed: October 10, 2013
    Publication date: August 11, 2016
    Inventors: Qiaoqiao Cai, Xiangting Dong, Juan Li, Tao Wang, Tingke Zhang
  • Publication number: 20160222246
    Abstract: 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.
    Type: Application
    Filed: October 10, 2013
    Publication date: August 4, 2016
    Applicant: Rohm and Haas Company
    Inventors: Qiaoqiao Cai, Xiangting Dong, Juan Li, Tao Wang, Tingke Zhang
  • Publication number: 20160115349
    Abstract: 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° C. to 80° C.; the polyurethane/acrylic hybrid has a Tg from ?55° C. to 0° C.; and the minimum film formation temperature of the composition is lower than 10° C. The present invention further provides a coating comprising the composition.
    Type: Application
    Filed: May 30, 2013
    Publication date: April 28, 2016
    Inventors: Xiangting DONG, Yawei XU, Yurun YANG, Jinyuan ZHANG, Yangping ZHU
  • Publication number: 20150191589
    Abstract: The present invention relates to a composition of a stable aqueous dispersion of polymer particles comprising structural units of a) vinyl acetate; b) a vinyl ester of a branched carboxylic acid monomer; and c) a phosphorus acid monomer. The composition of the present invention provides vinyl ester/phosphorus acid based polymer particles that improve hiding efficiency in pigmented coatings formulations.
    Type: Application
    Filed: August 2, 2012
    Publication date: July 9, 2015
    Inventors: Qiaoqiao Cai, Junyu Chen, Xiangting Dong, Tingke Zhang, James C. Bohling
  • Patent number: 8858926
    Abstract: An aqueous antibacterial polymer emulsion and coating compositions are provided. The aqueous antibacterial polymer emulsion comprising a polymer A, an oxidant and a metal complexed with a copolymer B comprising heterocyclic containing monomers; wherein the metal is selected from copper, silver, gold, tin, zinc and combinations thereof; and wherein the emulsion is heat stable. The coating compositions made therefrom provide persistent, broad spectrum antibacterial activity without discoloration problem upon exposure to heat and/or sun light.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: October 14, 2014
    Assignee: Rohm and Haas Company
    Inventors: Xiangting Dong, Shuang Liang, Tao Wang, Qingwei Zhang
  • Patent number: 8802765
    Abstract: The present invention relates to an aqueous copolymer dispersion comprising an emulsion copolymer and two hydrophobic aromatic ketones, wherein the aromatic ketones are, based on the dry weight of the copolymer, from 0.1 to 3 wt % benzophenone and from 0.1 to 4 wt % a benzophenone derivative; wherein the dispersion comprises 0 or less than 0.1 wt % hydrophilic aromatic ketone. The copolymer dispersion is suitable for preparation of aqueous coating compositions which yields a relatively hard surface to provide not only short term but also long term dirt pick up resistance effects, after exposure to ultraviolet radiation.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: August 12, 2014
    Assignee: Rohm and Haas Company
    Inventors: Huiling Yang, Xiangting Dong, Siyuan Jiang, Qianqian Li
  • Publication number: 20110243882
    Abstract: An aqueous antibacterial polymer emulsion and coating compositions are provided. The aqueous antibacterial polymer emulsion comprising a polymer A, an oxidant and a metal complexed with a copolymer B comprising heterocyclic containing monomers; wherein the metal is selected from copper, silver, gold, tin, zinc and combinations thereof; and wherein the emulsion is heat stable. The coating compositions made therefrom provide persistent, broad spectrum antibacterial activity without discoloration problem upon exposure to heat and/or sun light.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 6, 2011
    Inventors: Xiangting Dong, Shuang Liang, Tao Wang, Qingwei Zhang