Patents by Inventor Yingxia He

Yingxia He 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).

  • Amphoteric polymer for treating hard surfaces
    Patent number: 8741831
    Abstract: The present invention is directed to the use of hydrophilic terpolymers in hard surface cleaners which provide easier cleaning for surface soils such as hard water stains, soap scum, limescale, mud, food, toilet stains, oil, grease, particulates and the like as well as anti-fog effects on hard surfaces such as glass, mirrors, ceramic and plastic by causing water droplets to coalesce into a film.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: June 3, 2014
    Assignee: BASF SE
    Inventors: Bingham Scott Jaynes, Zhiqiang Song, Xian-Zhi Zhou, Yingxia He
  • AMPHOTERIC POLYMER FOR TREATING HARD SURFACES
    Publication number: 20090324964
    Abstract: The present invention is directed to the use of hydrophilic terpolymers in hard surface cleaners which provide easier cleaning for surface soils such as hard water stains, soap scum, limescale, mud, food, toilet stains, oil, grease, particulates and the like as well as anti-fog effects on hard surfaces such as glass, mirrors, ceramic and plastic by causing water droplets to coalesce into a film.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 31, 2009
    Inventors: Bingham Scott Jaynes, Zhiqiang Song, Xian-Zhi Zhou, Yingxia He
  • 2,9-dichloro-quinacridone as ?-quinacridone crystal phase inhibitor
    Patent number: 7419542
    Abstract: The invention is directed to a method or use of 2,9-dichloro-quinacridone as an alpha crystal phase inhibitor and optionally, 4,11-dichloroquinacridone during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction processes. The invention is also directed to solid solutions of quinacridone comprising about 98 to about 80 weight % gamma or beta-quinacridone, about 0.1 to about 10 weight % 2,9-dichloroquinacridone and about 0.1 to about 10 weight % 4,11-dichloroquinacridone.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: September 2, 2008
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Yingxia He, Colin Dennis Campbell, Gordian Schilling, Rhonda Carter, Melissa Wagner, James Thomas Will, Kevin Rodney Gerzevske
  • 2,9-Dichloro-quinacridone as alpha-quinacridone crystal phase inhibitor
    Publication number: 20070034117
    Abstract: The invention is directed to a method or use of 2,9-dichloro-quinacridone as an alpha crystal phase inhibitor and optionally, 4,11-dichloroquinacridone during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction processes. The invention is also directed to solid solutions of quinacridone comprising about 98 to about 80 weight % gamma or beta-quinacridone, about 0.1 to about 10 weight % 2,9-dichloroquinacridone and about 0.1 to about 10 weight % 4,11-dichloroquinacridone.
    Type: Application
    Filed: July 18, 2006
    Publication date: February 15, 2007
    Inventors: Yingxia He, Colin Campbell, Gordian Schilling, Rhonda Carter, Melissa Wagner
  • Process for aqueous milling of quinacridone pigments
    Patent number: 7122081
    Abstract: The present invention is directed to an aqueous process for reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant, optionally a defoamer, optionally an additive, and greater than about 10 wt. % water, and isolating the organic pigment.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: October 17, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Yingxia He, Colin D. Campbell
  • 2,9-Dichloro-quinacridone as alpha-quinacridone crystal phase inhibitor
    Patent number: 7101428
    Abstract: The invention is directed to a method or use of 2,9-dichloro-quinacridone as a crystal phase inhibitor during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction processes. 2,9-dichloroquinacridone is added to the milling composition of the crude gamma or crude beta quinacridone.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: September 5, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Yingxia He, Colin Campbell, Gordian Schilling, Rhonda Carter
  • Synthesis of small particle size quinacridone of beta crystal phase
    Patent number: 6987186
    Abstract: The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: January 17, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Damien Thurber Cole, Suruliappa Gowder Jeganathan, Yingxia He
  • 2,9-Dichloro-quinacridone as alpha-quinacridone crystal phase inhibitor
    Publication number: 20050183635
    Abstract: The invention is directed to a method or use of 2,9-dichloro-quinacridone as a crystal phase inhibitor during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction processes.
    Type: Application
    Filed: November 12, 2004
    Publication date: August 25, 2005
    Inventors: Yingxia He, Colin Campbell, Gordian Schilling, Rhonda Carter
  • Process for aqueous milling of quinacridone pigments
    Publication number: 20050187313
    Abstract: The present invention is directed to an aqueous process for reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant, optionally a defoamer, optionally an additive, and greater than about 10 wt. % water, and isolating the organic pigment.
    Type: Application
    Filed: November 12, 2004
    Publication date: August 25, 2005
    Inventors: Yingxia He, Colin Campbell
  • Synthesis of small particle size quinacridone of beta crystal phase
    Publication number: 20040229057
    Abstract: The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.
    Type: Application
    Filed: January 7, 2004
    Publication date: November 18, 2004
    Inventors: Damien Thurber Cole, Suruliappa Gowder Jeganathan, Yingxia He