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).
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Patent number: 8466228Abstract: 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: GrantFiled: August 6, 2010Date of Patent: June 18, 2013Assignee: Evonik CorporationInventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank, Michael M. Azad
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Patent number: 8021998Abstract: 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: GrantFiled: May 26, 2010Date of Patent: September 20, 2011Assignee: 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
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Publication number: 20100311578Abstract: 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: ApplicationFiled: August 6, 2010Publication date: December 9, 2010Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank, Michael M. Azad
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Publication number: 20100261812Abstract: 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: ApplicationFiled: May 26, 2010Publication date: October 14, 2010Applicant: 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
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Patent number: 7795345Abstract: 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: GrantFiled: November 22, 2006Date of Patent: September 14, 2010Assignee: Evonik Stockhausen, LLCInventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank, Michael M. Azad
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Patent number: 7615579Abstract: 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: GrantFiled: December 14, 2006Date of Patent: November 10, 2009Assignee: Evonik Stockhausen, Inc.Inventors: Mark C. Joy, Whei-Neen Hsu
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Publication number: 20070167560Abstract: 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: ApplicationFiled: November 22, 2006Publication date: July 19, 2007Inventors: Scott Smith, Mark Joy, Whei-Neen Hsu, Markus Frank
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Publication number: 20070088093Abstract: 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: ApplicationFiled: December 14, 2006Publication date: April 19, 2007Inventors: Mark Joy, Whei-Neen Hsu
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Patent number: 7169843Abstract: 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: GrantFiled: April 25, 2003Date of Patent: January 30, 2007Assignee: Stockhausen, Inc.Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank
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Patent number: 7163966Abstract: 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: GrantFiled: December 19, 2003Date of Patent: January 16, 2007Assignee: Stockhausen, Inc.Inventors: Mark C. Joy, Whei-Neen Hsu
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Publication number: 20050256469Abstract: 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: ApplicationFiled: June 15, 2005Publication date: November 17, 2005Applicant: 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
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Publication number: 20050137546Abstract: 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: ApplicationFiled: December 19, 2003Publication date: June 23, 2005Inventors: Mark Joy, Whei-Neen Hsu
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Publication number: 20040214946Abstract: 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: ApplicationFiled: April 25, 2003Publication date: October 28, 2004Inventors: Scott J. Smith, Mark C. Joy, Whei-Neen Hsu, Markus Frank
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Publication number: 20040214499Abstract: 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: ApplicationFiled: April 25, 2003Publication date: October 28, 2004Applicant: 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
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Patent number: 6565981Abstract: 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: GrantFiled: March 30, 1999Date of Patent: May 20, 2003Assignee: Stockhausen GmbH & Co. KGInventors: Bernfried Messner, Whei-Neen Hsu, Robert Agne
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Patent number: 6482344Abstract: A method for providing improved absorbency against pressure characteristics to non-surface crosslinked superabsorbent polymer fibers.Type: GrantFiled: August 23, 2000Date of Patent: November 19, 2002Assignee: Stockhausen GmbH & Co. KGInventors: Bernfried A. Messner, Whei-Neen Hsu, Mark C. Joy
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Patent number: 6245252Abstract: 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: GrantFiled: June 29, 1999Date of Patent: June 12, 2001Assignee: Stockhausen GmbH & Co. KGInventors: Robert David Hicks, Jane Elisabeth Mills, Whei-Neen Hsu, Robert Andrew Agne
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Patent number: 6124391Abstract: 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: GrantFiled: August 18, 1998Date of Patent: September 26, 2000Assignee: Stockhausen GmbH & Co. KGInventors: Fang Sun, Heather S. Jones, Thomas A. Kaiser, Whei-Neen Hsu, Ronald L. Molen, Peter A. Deaton, Bernfried A. Messner
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Patent number: 5989446Abstract: 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: GrantFiled: May 12, 1998Date of Patent: November 23, 1999Assignee: Stockhausen, Inc.Inventors: Robert David Hicks, Jane Elisabeth Mills, Whei-Neen Hsu