Patents by Inventor Nancy Birbiglia Lange

Nancy Birbiglia Lange 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: 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: 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
  • 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: 6720073
    Abstract: An absorbent composite that can handle complex fluids and maintain high absorbent capacity under high loads even after the material has been subjected to rigorous processing conditions. The absorbent composite includes an inhomogeneously crosslinked superabsorbent polymer having a highly crosslinked outer shell. The surface of the superabsorbent polymer includes a protective fibrous coating material and an association agent.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 13, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Nancy Birbiglia Lange, William Grover Reeves, Shannon Kathleen Melius
  • Publication number: 20040063367
    Abstract: Disclosed are absorbent composites, useful in an absorbent article, having high liquid intake rates. The absorbent composites may also have a rapid liquid lock-up. Absorbent composites of this invention have an intake rate of at least about 1.9 cc liquid/second at an 80% absorbent composite saturation level and a liquid lock-up fraction of at least about 0.70 at 50% superabsorbent material saturation. The absorbent composites of this invention can be a freeze-dried composite, an airformed absorbent composite, or other fibrous or non-fibrous absorbent composites.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 1, 2004
    Inventors: Richard Norris Dodge, Nancy Birbiglia Lange, Jayant Chakravarty, Jian Qin, Sridhar Ranganathan, Fu-Jya Daniel Tsai, Cathleen M. Uttecht, Xiaomin Zhang
  • Patent number: 6689934
    Abstract: Disclosed are absorbent composites, useful in an absorbent article, having high liquid intake rates. The absorbent composites may also have a rapid liquid lock-up. Absorbent composites of this invention have an intake rate of at least about 1.9 cc liquid/second at an 80% absorbent composite saturation level and a liquid lock-up fraction of at least about 0.70 at 50% superabsorbent material saturation. The absorbent composites of this invention can be a freeze-dried composite, an airformed absorbent composite, or other fibrous or non-fibrous absorbent composites.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: February 10, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard Norris Dodge, II, Nancy Birbiglia Lange, Jayant Chakravarty, Jian Qin, Sridhar Ranganathan, Fu-Jya Daniel Tsai, Cathleen M. Uttecht, Xiaomin Zhang
  • Publication number: 20030139712
    Abstract: An absorbent composite, useful in an absorbent article, having a high liquid intake rate. The absorbent composite may also have a rapid liquid lock-up. Absorbent composites of this invention have an intake rate of at least about 1.9 cc liquid/second at an 80% absorbent composite saturation level and a liquid lock-up fraction of at least about 0.70 at 50% superabsorbent material saturation. The absorbent composites of this invention can be a freeze-dried composite, an airformed absorbent composite, or other fibrous or non-fibrous absorbent composites.
    Type: Application
    Filed: December 14, 2001
    Publication date: July 24, 2003
    Inventors: Richard Norris Dodge, Nancy Birbiglia Lange, Jayant Chakravarty, Jian Qin, Sridhar Ranganathan, Fu-Jya Daniel Tsai, Cathleen M. Uttecht, Xiaomin Zhang
  • Publication number: 20030139715
    Abstract: Disclosed are absorbent composites, useful in an absorbent article, having a superabsorbent material having a high stiffness and a fast absorption rate. The superabsorbent materials of the absorbent composites of this invention have a stiffness index of greater than about 0.87 and a vortex time of less than about 40 seconds. Absorbent composites of this invention can have a high liquid intake rate and a rapid liquid lock-up. Absorbent composites of this invention can have an intake rate of at least about 1.9 cubic centimeter liquid/second at an 80% absorbent composite saturation level and a liquid lock-up fraction of at least about 0.70 at 50% superabsorbent material saturation. The absorbent composites of this invention can be a freeze-dried composite, an airformed absorbent composite, or other fibrous or non-fibrous absorbent composites.
    Type: Application
    Filed: November 8, 2002
    Publication date: July 24, 2003
    Inventors: Richard Norris Dodge, Nancy Birbiglia Lange, Jayant Chakravarty, Jian Qin, Sridhar Ranganathan, Fu-Jya Daniel Tsai, Cathleen M. Uttecht, Xiaomin Zhang
  • Publication number: 20030130640
    Abstract: Disclosed are absorbent composites, useful in an absorbent article, having high liquid intake rates. The absorbent composites may also have a rapid liquid lock-up. Absorbent composites of this invention have an intake rate of at least about 1.9 cc liquid/second at an 80% absorbent composite saturation level and a liquid lock-up fraction of at least about 0.70 at 50% superabsorbent material saturation. The absorbent composites of this invention can be a freeze-dried composite, an airformed absorbent composite, or other fibrous or non-fibrous absorbent composites.
    Type: Application
    Filed: November 8, 2002
    Publication date: July 10, 2003
    Inventors: Richard Norris Dodge, Nancy Birbiglia Lange, Jayant Chakravarty, Jian Qin, Sridhar Ranganathan, Fu-Jya Daniel Tsai, Cathleen M. Uttecht, Xiaomin Zhang
  • Publication number: 20020150761
    Abstract: An absorbent composite that can handle complex fluids and maintain high absorbent capacity under high loads even after the material has been subjected to rigorous processing conditions. The absorbent composite includes an inhomogeneously crosslinked superabsorbent polymer having a highly crosslinked outer shell. The surface of the superabsorbent polymer includes a protective fibrous coating material and an association agent.
    Type: Application
    Filed: December 21, 2001
    Publication date: October 17, 2002
    Inventors: Nancy Birbiglia Lange, William Grover Reeves, Shannon Kathleen Melius