Patents by Inventor Hu Yang

Hu Yang 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: 7341619
    Abstract: In one embodiment, we disclose hardened olefin waxes and processes for preparing them. In another embodiment, we disclose oxidized olefin waxes having low viscosity and processes for preparing them. The waxes are suitable for use as polishes, coatings, or inks, among other uses.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: March 11, 2008
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Hu Yang, Eduardo J. Baralt, Willie J. Isom, Ronald G. Abbott
  • Publication number: 20080051434
    Abstract: The present invention provides compounds having formula (I): and additionally provides methods for the synthesis thereof and methods for the use thereof in the treatment of cancer, wherein R1-R7, X1, X2, R, Q, and n are as defined herein.
    Type: Application
    Filed: February 2, 2007
    Publication date: February 28, 2008
    Applicant: EISAI CO., LTD.
    Inventors: James Kowalczyk, Galina Kuznetsov, Shawn Schiller, Boris Seletsky, Mark Spyvee, Hu Yang
  • Patent number: 7288593
    Abstract: Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group. Preferably, the modified EVOH comprises structures IV, V, and VI: wherein x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, z is an integer greater than or equal to 1, and R comprises a cycloalkenyl group. The modified EVOH is useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article. Also disclosed are methods of modifying ethylene vinyl alcohol polymers, and using the modified EVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: October 30, 2007
    Assignee: Cryovac, Inc.
    Inventors: Hu Yang, Ta Yen Ching, Gangfeng Cai
  • Patent number: 7247390
    Abstract: Herein is disclosed an oxygen barrier composition comprising an oxygen barrier polymer and an oxygen scavenging polymer. Preferably, the oxygen barrier polymer is selected from polymers or copolymers of vinyl alcohol, polyesters, polymers or copolymers of vinylidene dichloride, polymers or copolymers of epoxies, polysulfones, polymers or copolymers of acrylonitrile, polymers or copolymers of isocyanates, or polyamides other than MXD6; and the oxygen scavenging polymer either comprises an ethylenic backbone and a cyclic olefinic pendant group of structure I, or a polyester group of structure II or structure III: wherein q1, q2, q3, q4, and r are independently selected from hydrogen, methyl, or ethyl; m is —(CH2)n—, wherein n is an integer from 0 to 4, inclusive; X is null or a linking group; and, when r is hydrogen, at least one of q1, q2, q3, and q4 is also hydrogen. The oxygen barrier composition can be formed into an oxygen barrier layer of a packaging article.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: July 24, 2007
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Hu Yang, Ta Yen Ching, Gangfeng Cai
  • Publication number: 20070095723
    Abstract: An oxidized olefin wax useful as a pour point depressant for hydrocarbon compositions and/or additive to reduce the wax particle size of wax precipitates in hydrocarbon compositions is described. Method for reducing the pour point and/or wax particle size of hydrocarbon composition with an oxidized olefin wax are described.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 3, 2007
    Inventors: Eduardo Baralt, Hu Yang
  • Patent number: 7192972
    Abstract: The present invention provides compounds having formula (I): and additionally provides methods for the synthesis thereof and methods for the use thereof in the treatment of cancer, wherein R1–R7, X1, X2, R, Q, and n are as defined herein.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: March 20, 2007
    Assignee: Eisai Co., Ltd.
    Inventors: James J. Kowalczyk, Galina Kuznetsov, Shawn Schiller, Boris M. Seletsky, Mark Spyvee, Hu Yang
  • Patent number: 7186464
    Abstract: Herein is disclosed an oxygen barrier composition comprising an oxygen barrier polymer and an oxygen scavenging polymer. The composition can be in the form of a physical blend or a cross-linked blend, and can further comprise a compatibilizer, a transesterification catalyst, or both. Preferably, the oxygen barrier polymer is poly(ethylene/vinyl alcohol) (EVOH), polyethylene terephthalate (PET), or polyamide other than MXD6. Preferably, the oxygen scavenging polymer comprises an ethylenic backbone and a pendant cyclic olefinic group, or the oxygen scavenging polymer is a polyamide derived at least in part from a xylene diamine-based monomer. The oxygen barrier composition can be formed into an oxygen barrier layer of a packaging article. Such layers and articles, and methods for making same, are also disclosed.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: March 6, 2007
    Assignee: Chevron Phillips Chemical Co. LP
    Inventors: Raymond Laplante, Hu Yang, Ta Yen Ching, Gangfeng Cai
  • Publication number: 20060251841
    Abstract: Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group. Preferably, the modified EVOH comprises structures IV, V, and VI: wherein x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, z is an integer greater than or equal to 1, and R comprises a cycloalkenyl group. The modified EVOH is useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article. Also disclosed are methods of modifying ethylene vinyl alcohol polymers, and using the modified EVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.
    Type: Application
    Filed: July 10, 2006
    Publication date: November 9, 2006
    Inventors: Hu Yang, Ta Ching, Gangfeng Cai
  • Patent number: 7087277
    Abstract: Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group. Preferably, the modified EVOH comprises structures IV, V, and VI: wherein x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, z is an integer greater than or equal to 1, and R comprises a cycloalkenyl group. The modified EVOH is useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article. Also disclosed are methods of modifying ethylene vinyl alcohol polymers, and using the modified EVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: August 8, 2006
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Hu Yang, Ta Yen Ching, Gangfeng Cai
  • Publication number: 20060154872
    Abstract: The present invention provides compounds having formula (I): and additionally provides methods for the synthesis thereof and methods for the use thereof in the treatment of cancer, wherein R1-R7, X1, X2, R, Q, and n are as defined herein.
    Type: Application
    Filed: January 26, 2006
    Publication date: July 13, 2006
    Inventors: Silvio Campagna, Francis Fang, James Kowalczyk, Shawn Schiller, Boris Seletsky, Mark Spyvee, Hu Yang
  • Patent number: 7064211
    Abstract: The present invention provides compounds having formula (I): and additionally provides methods for the synthesis thereof and methods for the use thereof in the treatment of cancer, wherein R1–R7, X1, X2, R, Q, and n are as defined herein.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: June 20, 2006
    Assignee: Eisai Co., Ltd.
    Inventors: James J. Kowalczyk, Galina Kuznetsov, Shawn Schiller, Boris M. Seletsky, Mark Spyvee, Hu Yang
  • Patent number: 7056565
    Abstract: Rigid containers are provided comprising oxygen scavenger compositions that produce only low levels of volatiles or by-products as a consequence of oxygen scavenging. In particular, a family of polymers containing selected cyclic olefinic pendent groups are used in the rigid containers to achieve oxygen scavenging that is associated with minimal or no organoleptic by-products after oxidation.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: June 6, 2006
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Gangfeng Cai, Ta Yen Ching, Hu Yang
  • Publication number: 20060107867
    Abstract: In one embodiment, we disclose hardened olefin waxes and processes for preparing them. In another embodiment, we disclose oxidized olefin waxes having low viscosity and processes for preparing them. The waxes are suitable for use as polishes, coatings, or inks, among other uses.
    Type: Application
    Filed: January 27, 2005
    Publication date: May 25, 2006
    Inventors: Hu Yang, Eduardo Baralt, Willie Isom, Ronald Abbott
  • Publication number: 20060107866
    Abstract: In one embodiment, we disclose hardened olefin waxes and processes for preparing them. In another embodiment, we disclose oxidized olefin waxes having low viscosity and processes for preparing them. The waxes are suitable for use as polishes, coatings, or inks, among other uses.
    Type: Application
    Filed: November 23, 2004
    Publication date: May 25, 2006
    Inventors: Hu Yang, Eduardo Baralt, Willie Isom, Ronald Abbott
  • Patent number: 7026417
    Abstract: Herein are disclosed modified vinyl alcohol polymers (mPVOH), wherein the mPVOH can comprise structure VII: and at least one structure comprising structure IX: or structure X: wherein —R can independently comprise an unsubstituted hydrocarbon moiety comprising at least one alpha hydrogen or a substituted hydrocarbon moiety comprising at least one alpha hydrogen. The mPVOH can be useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article. Also disclosed are methods of forming mPVOH and methods of using mPVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: April 11, 2006
    Assignee: Chevron Phillips Chemical Co., LP
    Inventors: Hu Yang, Ta Yen Ching
  • Patent number: 7022258
    Abstract: Herein is disclosed an oxygen scavenging composition, comprising (i) an oxygen scavenging polymer comprising structure I: X—R—X—O—CH2—Ar—CH2—O,??(I) wherein —R— is selected from the group consisting of C1–C24 alkyl, C1–C24 substituted alkyl, C6–C24 aryl, and C6–C24 substituted aryl; —Ar— is selected from the group consisting of C6–C24 aryl and C6–C24 substituted aryl; and —X— is selected from the group consisting of null and —C(?O)—; (ii) a transition metal oxidation catalyst; and (iii) an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm. The oxygen scavenging composition can be used to form an oxygen barrier packaging article.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: April 4, 2006
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Hu Yang, Ta Yen Ching, Steven Woodcock
  • Publication number: 20050239870
    Abstract: The present invention provides compounds having formula (I): and additionally provides methods for the synthesis thereof and methods for the use thereof in the treatment of cancer, wherein R1-R7, X1, X2, R, Q, and n are as defined herein.
    Type: Application
    Filed: March 21, 2003
    Publication date: October 27, 2005
    Applicant: EISAI CO., LTD.,
    Inventors: James Kowalczyk, Galina Kuznetsov, Shawn Schiller, Boris Seletsky, Mark Spyvee, Hu Yang
  • Patent number: 6946175
    Abstract: Herein is disclosed multilayer packaging articles comprising an oxygen barrier layer comprising ethylene/vinyl alcohol copolymer (EVOH) (an “EVOH oxygen barrier layer”); an oxygen scavenging layer adjacent thereto, wherein the oxygen scavenging layer comprises a polymer comprising an ethylenic backbone and a cycloalkenyl group having structure I: wherein q1, q2, q3, q4, and r are independently selected from hydrogen, methyl, or ethyl; m is —(CH2)n—, wherein n is an integer from 0 to 4, inclusive, and, when r is hydrogen, at least one of q1, q2, q3, and q4 is also hydrogen; and a third layer adjacent to the oxygen scavenging layer. In addition to the oxygen scavenging function, the oxygen scavenging layer functions as a tie layer to substantially inhibit delamination of the EVOH oxygen barrier layer from the third layer of the packaging article.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: September 20, 2005
    Assignee: Chevron Phillips Chemical Co., LP
    Inventors: Hu Yang, Ta Yen Ching, Gangfeng Cai
  • Publication number: 20040234791
    Abstract: Multilayer packaging articles contain (i) an oxygen scavenging tie layer which includes polypropylene-graft-acrylic acid (PP-g-AA), polypropylene-graft-maleic anhydride (PP-g-MA), or a mixture thereof; (ii) a second layer; and (iii) a third layer, wherein the oxygen scavenging-tie layer is located between the second layer and the third layer. In addition to the oxygen scavenging function, the oxygen scavenging tie layer functions as a tie layer to inhibit delamination of the second layer from the third layer, or vice versa.
    Type: Application
    Filed: May 19, 2003
    Publication date: November 25, 2004
    Inventors: Ta Yen Ching, James A. Solis, Hu Yang, William A. Diecks
  • Publication number: 20040229819
    Abstract: The present invention provides compounds having formula (I): 1
    Type: Application
    Filed: September 22, 2003
    Publication date: November 18, 2004
    Inventors: James J. Kowalczyk, Galina Kuznetsov, Shawn Schiller, Boris M. Seletsky, Mark Spyvee, Hu Yang