Patents by Inventor Yuanyan GU

Yuanyan GU 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).

  • Publication number: 20190382631
    Abstract: Disclosed is a hot melt adhesive composition that includes a first amorphous alpha-olefin copolymer derived from propylene and at least one olefin comonomer other than propylene, the first amorphous alpha-olefin copolymer having a viscosity from 750 centipoise (cP) to less than 50,000 centipoise at 190° C., a second polyolefin derived from propylene and optionally a comonomer, the second polyolefin exhibiting a heat of fusion from 15 Joules per gram (J/g) to no greater than 50 J/g, a hydrogenated styrenic block copolymer that includes styrene polymer blocks and at least one hydrogenated conjugated diene polymer block, tackifying agent, and liquid plasticizer.
    Type: Application
    Filed: June 12, 2019
    Publication date: December 19, 2019
    Inventors: Yuanyan Gu, Carol A. Deshler, Haiying Zhou, Kevin P. Davis, Steven R. Vaughan
  • Publication number: 20190382630
    Abstract: A hot melt adhesive composition that includes at least 5% by weight of a first amorphous alpha-olefin copolymer derived from propylene and at least one olefin comonomer other than propylene, the first amorphous alpha-olefin copolymer having a viscosity of less than 50,000 cP at 190° C., from 1% by weight to 20% by weight of a second polyolefin derived from propylene and optionally an alpha-olefin comonomer, the second polyolefin exhibiting a heat of fusion from 15 Joules per gram (J/g) to no greater than 90 J/g, a third polyolefin derived from propylene and optionally an alpha-olefin comonomer other than propylene, the third polyolefin being different from the first amorphous alpha-olefin copolymer and the second polyolefin and exhibiting a melt flow rate of no greater than 100 grams/10 minute and a density of no greater than 0.880 g/cm3, tackifying agent, and liquid plasticizer.
    Type: Application
    Filed: June 12, 2019
    Publication date: December 19, 2019
    Inventors: Haiying Zhou, Kevin P. Davis, Carlos Briseno, Yuanyan Gu
  • Patent number: 10383972
    Abstract: A hot melt wetness indicator composition that includes a water insoluble thermoplastic polymer, an anionic surfactant, a leuco dye, and a component selected from the group consisting of acid, rosin-based tackifying agent, plasticizer and combinations thereof, and is homogeneous is disclosed. The hot melt wetness indicator composition exhibits a color change after contact with water.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 20, 2019
    Assignee: H.B. Fuller Company
    Inventors: Yuanyan Gu, Ryan T. Gleason, Michael C. Krzoska, Steven R. Vaughan, Carlos Briseno, Kevin P. Davis
  • Patent number: 10265225
    Abstract: This invention claims a disposable article including at least two bonded regions, one of the regions has elastic properties; the other region is different from the first.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: April 23, 2019
    Assignee: H.B. Fuller Company
    Inventors: Kristy J. Beckman, David B. Malcolm, Kevin P. Davis, Yuanyan Gu, Peter Remmers, Thomas Wittkopf, Mark S. Kroll
  • Publication number: 20160287742
    Abstract: A hot melt wetness indicator composition that includes a water insoluble thermoplastic polymer, an anionic surfactant, a leuco dye, and a component selected from the group consisting of acid, rosin-based tackifying agent, plasticizer and combinations thereof, and is homogeneous is disclosed. The hot melt wetness indicator composition exhibits a color change after contact with water.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 6, 2016
    Inventors: Yuanyan Gu, Ryan T. Gleason, Michael C. Krzoska, Steven R. Vaughan, Carlos Briseno, Kevin P. Davis
  • Publication number: 20160068721
    Abstract: This invention claims hot melt adhesive compositions that can be used to form elastic composites that are useful in disposable absorbent articles. The compositions have good elastic recovery and high peel adhesion at a viscosity of less than about 15,000 cps at 177° C. (350° F.). The low viscosity makes it possible to apply the hot melt adhesive at a high line speed and target application to only those areas requiring elastic performance.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 10, 2016
    Inventors: David B. Malcolm, Kevin P. Davis, Yuanyan Gu, Peter Remmers, Thomas Wittkopf, Kristy J. Beckman, Mark S. Kroll
  • Publication number: 20160067117
    Abstract: This invention claims a disposable article including at least two bonded regions, one of the regions has elastic properties; the other region is different from the first.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 10, 2016
    Inventors: Kristy J. Beckman, David B. Malcolm, Kevin P. Davis, Yuanyan Gu, Peter Remmers, Thomas Wittkopf, Mark S. Kroll
  • Publication number: 20160067116
    Abstract: This invention claims disposable garments comprising a stretchy laminate and methods of making the same.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 10, 2016
    Inventors: Kristy J. BECKMAN, Kevin P. DAVIS, David B. MALCOLM, Yuanyan GU