Patents by Inventor Whei-Neen Hsu

Whei-Neen Hsu 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: 8466228
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: June 18, 2013
    Assignee: Evonik Corporation
    Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank, Michael M. Azad
  • Patent number: 8021998
    Abstract: An absorbent structure made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least 575×10?9 cm2. In another embodiment, the absorbent structure is made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g, an absorbency under load (AUL) at 0.9 psi as determined by an Absorbency Under Load Test of at least 18 and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least about 350×10?9 cm2.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: September 20, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Sandra Marie Rogers, Michael John Niemeyer, Kenneth Raymond Schueler, Jr., Steven Michael Hurley, Lawrence Howell Sawyer, Whei-Neen Hsu, Mark C. Joy, Scott J. Smith, Markus Frank, Nancy Birbiglia Lange
  • Publication number: 20100311578
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.
    Type: Application
    Filed: August 6, 2010
    Publication date: December 9, 2010
    Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank, Michael M. Azad
  • Publication number: 20100261812
    Abstract: An absorbent structure made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least 575×10?9 cm2. In another embodiment, the absorbent structure is made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g, an absorbency under load (AUL) at 0.9 psi as determined by an Absorbency Under Load Test of at least 18 and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least about 350×10?9 cm2.
    Type: Application
    Filed: May 26, 2010
    Publication date: October 14, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Jian Qin, Sandra Marie Rogers, Michael John Niemeyer, Kenneth Raymond Schueler, JR., Steven Michael Hurley, Lawrence Howell Sawyer, Whei-Neen Hsu, Mark C. Joy, Scott J. Smith, Markus Frank, Nancy Birbiglia Lange
  • Patent number: 7795345
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: September 14, 2010
    Assignee: Evonik Stockhausen, LLC
    Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank, Michael M. Azad
  • Patent number: 7615579
    Abstract: The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt. % of internal crosslinking agent; wherein the wherein the composition has a degree of neutralization of more than about 20%; and from about 0.05 to about 10.0 wt. % of an encapsulated blowing agent.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: November 10, 2009
    Assignee: Evonik Stockhausen, Inc.
    Inventors: Mark C. Joy, Whei-Neen Hsu
  • Publication number: 20070167560
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.
    Type: Application
    Filed: November 22, 2006
    Publication date: July 19, 2007
    Inventors: Scott Smith, Mark Joy, Whei-Neen Hsu, Markus Frank
  • Publication number: 20070088093
    Abstract: The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt. % of internal crosslinking agent; wherein the wherein the composition has a degree of neutralization of more than about 20%; and from about 0.05 to about 10.0 wt. % of an encapsulated blowing agent.
    Type: Application
    Filed: December 14, 2006
    Publication date: April 19, 2007
    Inventors: Mark Joy, Whei-Neen Hsu
  • Patent number: 7169843
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: January 30, 2007
    Assignee: Stockhausen, Inc.
    Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank
  • Patent number: 7163966
    Abstract: The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt. % of internal crosslinking agent; wherein the wherein the composition has a degree of neutralization of more than about 20%; and from about 0.05 to about 10.0 wt. % of an encapsulated blowing agent.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: January 16, 2007
    Assignee: Stockhausen, Inc.
    Inventors: Mark C. Joy, Whei-Neen Hsu
  • Publication number: 20050256469
    Abstract: An absorbent structure made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least 575×10?9 cm2. In another embodiment, the absorbent structure is made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g, an absorbency under load (AUL) at 0.9 psi as determined by an Absorbency Under Load Test of at least 18 and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least about 350×10?9 cm2.
    Type: Application
    Filed: June 15, 2005
    Publication date: November 17, 2005
    Applicant: Kimberly-Clark Worldwide Inc.
    Inventors: Jian Qin, Sandra Rogers, Michael Niemeyer, Kenneth Schueler, Steven Hurley, Lawrence Sawyer, Whei-Neen Hsu, Mark Joy, Scott Smith, Markus Frank, Nancy Lange
  • Publication number: 20050137546
    Abstract: The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt. % of internal crosslinking agent; wherein the wherein the composition has a degree of neutralization of more than about 20%; and from about 0.05 to about 10.0 wt.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Inventors: Mark Joy, Whei-Neen Hsu
  • Publication number: 20040214946
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank
  • Publication number: 20040214499
    Abstract: An absorbent structure made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least 575×10−9 cm2. In another embodiment, the absorbent structure is made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g, an absorbency under load (AUL) at 0.9 psi as determined by an Absorbency Under Load Test of at least 18 and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least about 350×10−9 cm2.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Sandra Marie Rogers, Michael John Niemeyer, Kenneth Raymond Schueler, Steven Michael Hurley, Lawrence Howell Sawyer, Whei-Neen Hsu, Mark C. Joy, Scott J. Smith, Markus Frank, Nancy Birbiglia Lange
  • Patent number: 6565981
    Abstract: A composite of a substrate having an application of superabsorbent polymer. The composite is made by applying, directly onto the substrate, an application of a polymer that will, upon being subjected to radiation, convert to a superabsorbent polymer. The substrate with applied polymer is subjected to radiation, such as being heated at a sufficient temperature for a sufficient time, to obtain the composite of substrate with superabsorbent polymer adhered to it.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: May 20, 2003
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Bernfried Messner, Whei-Neen Hsu, Robert Agne
  • Patent number: 6482344
    Abstract: A method for providing improved absorbency against pressure characteristics to non-surface crosslinked superabsorbent polymer fibers.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: November 19, 2002
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Bernfried A. Messner, Whei-Neen Hsu, Mark C. Joy
  • Patent number: 6245252
    Abstract: In the prevention of the spread of fires and for directly fighting fires, a cross-linked, water-swellable additive polymer in water/oil emulsion produced by an inverse phase polymerization reaction to be added to the firefighting water is disclosed. The additive has the properties of absorbing large quantities of water, high viscosity for adherence to vertical and horizontal surfaces, and retention of sufficient fluidity to be educted in standard firefighting equipment. The method of adding this additive to the firefighting water by eduction or by a batch addition to the water source is also disclosed.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: June 12, 2001
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Robert David Hicks, Jane Elisabeth Mills, Whei-Neen Hsu, Robert Andrew Agne
  • Patent number: 6124391
    Abstract: A particulate material composition of superabsorbent polymer particles, wherein less than about 60% by weight of the superabsorbent polymer particles will pass through a U.S. Standard 50 mesh sieve. The composition has anti-caking properties and also reduced dusting. The composition can be produced by mixing the superabsorbent polymer particles with an inorganic powder, such as clay.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: September 26, 2000
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Fang Sun, Heather S. Jones, Thomas A. Kaiser, Whei-Neen Hsu, Ronald L. Molen, Peter A. Deaton, Bernfried A. Messner
  • Patent number: 5989446
    Abstract: In the prevention of the spread of fires and for directly fighting fires, a cross-linked, water-swellable additive polymer in water/oil emulsion produced by an inverse phase polymerization reaction to be added to the firefighting water is disclosed. The additive has the properties of absorbing large quantities of water, high viscosity for adherence to vertical and horizontal surfaces, and retention of sufficient fluidity to be educted in standard firefighting equipment. The method of adding this additive to the firefighting water by eduction or by a batch addition to the water source is also disclosed.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: November 23, 1999
    Assignee: Stockhausen, Inc.
    Inventors: Robert David Hicks, Jane Elisabeth Mills, Whei-Neen Hsu