Patents by Inventor Patricia H. Calhoun

Patricia H. Calhoun 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: 20230098239
    Abstract: An elastomeric bicomponent fiber, including at least one sheath and a core, with non-blocking properties and a garment-like feel is provided. The core includes two or more polypropylene based elastomers and a secondary amide, and the sheath includes a non-elastomeric polyethylene. Further, the sheath can be present as a small portion of the total elastomeric composition, and the secondary amide can be present as a small portion of the core, while forming a bicomponent fiber with non-blocking properties and a garment-like feel, while maintaining good strength characteristics.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 30, 2023
    Inventors: Shawn E. Jenkins, Jeffrey Krueger, John D. Tucker, Wade R. Thompson, Fang Wang, Mehdi Gholipour, Simon Poruthoor, Glynis A. Walton, Patricia H. Calhoun, Ray Sterling
  • Publication number: 20230094829
    Abstract: A wettable barrier fabric is provided that exhibits barrier function to dry particles and splashed liquids while also exhibiting wettability and wicking properties. A garment formed from a wettable barrier fabric that has good absorption properties and that retains good barrier properties is also provided.
    Type: Application
    Filed: April 13, 2020
    Publication date: March 30, 2023
    Inventors: KyoungRock Kim, HoMyung Yang, YoonJae Park, J. David Tucker, Shawn Jenkins, Fang Wang, Patricia H. Calhoun
  • Publication number: 20230087539
    Abstract: An elastomeric bicomponent fiber, including at least one sheath and a core, with non-blocking properties and a garment-like feel is provided. The core includes an elastomer and a secondary amide, and the sheath includes a non-elastomeric polyethylene. Further, the sheath can be present as a small portion of the total elastomeric composition, and the secondary amide can be present as a small portion of the core, while forming a bicomponent fiber with non-blocking properties and a garment-like feel.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 23, 2023
    Inventors: Shawn E. Jenkins, Simon Poruthoor, John D. Tucker, Ray Sterling, Jeffrey Krueger, Wade R. Thompson, Fang Wang, Mehdi Gholipour, Glynis A. Walton, Patricia H. Calhoun
  • Publication number: 20230089861
    Abstract: Methods and (articles of manufacture therefrom) including forming an elastic film from a polymer composition; tensioning the elastic film to a stretch ratio of between 2 and 6 in the MD; laminating the elastic film to an extensible facing to provide an elastomeric laminate having a CD hysteresis loss of 70% or less and an MD hysteresis loss of 50% or less.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 23, 2023
    Inventors: John D. Tucker, Glynis A. Walton, Shawn E. Jenkins, Patricia H. Calhoun, Jeffrey Krueger, Wade R. Thompson, Fang Wang, Mehdi Gholipour, Simon Poruthoor, Ray Sterling
  • Patent number: 9724248
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from a multi-layered, elastic film laminated to a nonwoven web facing. Latent elasticity is imparted to the composite through the use of at least one base layer that contains a thermoplastic elastomer and at least one skin layer that contains a propylene/?-olefin copolymer. During formation, the film is stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the propylene/?-olefin copolymer. The stretched elastic film may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated at or above the softening point of the copolymer) to soften the crystalline domains and allow the chains to return to their unoriented state.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: August 8, 2017
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Janis W. Hughes, Glynis A. Walton, Patricia H. Calhoun, Oomman P. Thomas
  • Publication number: 20140142527
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from a multi-layered, elastic film laminated to a nonwoven web facing. Latent elasticity is imparted to the composite through the use of at least one base layer that contains a thermoplastic elastomer and at least one skin layer that contains a propylene/?-olefin copolymer. During formation, the film is stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the propylene/?-olefin copolymer. The stretched elastic film may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated at or above the softening point of the copolymer) to soften the crystalline domains and allow the chains to return to their unoriented state.
    Type: Application
    Filed: January 24, 2014
    Publication date: May 22, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Janis W. Hughes, Glynis A. Walton, Patricia H. Calhoun, Oomman P. Thomas
  • Patent number: 8709191
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from a multi-layered, elastic film laminated to a nonwoven web facing. Latent elasticity is imparted to the composite through the use of at least one base layer that contains a thermoplastic elastomer and at least one skin layer that contains a propylene/?-olefin copolymer. During formation, the film is stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the propylene/?-olefin copolymer. The stretched elastic film may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated at or above the softening point of the copolymer) to soften the crystalline domains and allow the chains to return to their unoriented state.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: April 29, 2014
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Janis Wilson Hughes, Glynis Alicia Walton, Patricia H. Calhoun, Oomman P. Thomas
  • Patent number: 8328780
    Abstract: An absorbent article incorporates a material having a base layer of a generally fluid permeable material and at least two strips or regions of elastomeric material attached to the base layer material with a space therebetween such that a center region of the base layer material is bordered on at least two sides by composite regions of the elastomeric materials and the base layer material. The center region of base layer material remains generally non-elastic and the composite regions are stretchable in at least a first direction as a result of tensioning and necking-in the base layer material prior to attaching the elastomeric materials. The material may be incorporated as a bodyside liner in the absorbent article.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: December 11, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr
  • Patent number: 7938921
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from an elastic strand layer laminated to a nonwoven web facing. Latent elasticity may be imparted to the elastic strand layer through the combination of a thermoplastic elastomer and a polyolefin capable of forming semi-crystalline domains among the elastomeric chains. More specifically, the elastic strand layer may be stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the polyolefin. The stretched elastic strand layer may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated) to shrink the elastic strand layer and provide it with “latent” stretchability.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: May 10, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Wing-Chak Ng, Janis Wilson Hughes, Patricia H. Calhoun, Glynis Allicia Walton
  • Publication number: 20090286444
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from a multi-layered, elastic film laminated to a nonwoven web facing. Latent elasticity is imparted to the composite through the use of at least one base layer that contains a thermoplastic elastomer and at least one skin layer that contains a propylene/?-olefin copolymer. During formation, the film is stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the propylene/?-olefin copolymer. The stretched elastic film may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated at or above the softening point of the copolymer) to soften the crystalline domains and allow the chains to return to their unoriented state.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Janis W. Hughes, Glynis A. Walton, Patricia H. Calhoun, Oomman P. Thomas
  • Patent number: 7582178
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from an elastic film laminated to a nonwoven web facing. Latent elasticity may be imparted to the elastic film through the combination of a thermoplastic elastomer and a polyolefin capable of forming semi-crystalline domains among the amorphous elastomeric chains. More specifically, the elastic film may be stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the polyolefin. The stretched elastic film may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated) to shrink the elastic film and provide it with “latent” stretchability.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: September 1, 2009
    Assignee: Kimberly-Clark worldwide, Inc.
    Inventors: Janis W. Hughes, Wing-Chak Ng, Patricia H. Calhoun, Glynis A. Walton
  • Publication number: 20080119102
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from an elastic film laminated to a nonwoven web facing. Latent elasticity may be imparted to the elastic film through the combination of a thermoplastic elastomer and a polyolefin capable of forming semi-crystalline domains among the amorphous elastomeric chains. More specifically, the elastic film may be stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the polyolefin. The stretched elastic film may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated) to shrink the elastic film and provide it with “latent” stretchability.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 22, 2008
    Inventors: Janis W. Hughes, Wing-Chak Ng, Patricia H. Calhoun, Glynis A. Walton
  • Publication number: 20080119103
    Abstract: A nonwoven composite that exhibits latent elastic properties is provided. The composite is formed from an elastic strand layer laminated to a nonwoven web facing. Latent elasticity may be imparted to the elastic strand layer through the combination of a thermoplastic elastomer and a polyolefin capable of forming semi-crystalline domains among the elastomeric chains. More specifically, the elastic strand layer may be stretched in one or more directions to orient the elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the chains may be held in place by the relatively stiff semi-crystalline domains of the polyolefin. The stretched elastic strand layer may subsequently be relaxed and bonded to a nonwoven web facing to form the composite. The composite may be later activated (e.g., heated) to shrink the elastic strand layer and provide it with “latent” stretchability.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 22, 2008
    Inventors: Wing-Chak Ng, Janis Wilson Hughes, Patricia H. Calhoun, Glynis Allicia Walton
  • Patent number: 7294593
    Abstract: A material is provided that is particularly suited for use in absorbent articles. The material has a base layer of a generally non-elastic material and at least two strips or regions of elastomeric material attached to the base layer material with a space therebetween such that a center region of the base layer material is bordered on at least two sides by composite regions of the elastomeric materials and the base layer material. The center region of base layer material remains generally non-extensible and the composite regions are stretchable in at least a first direction as a result of tensioning and necking-in the base layer material prior to attaching the elastomeric materials. The invention includes methods for making the material, as well as absorbent articles incorporating the materials.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: November 13, 2007
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr
  • Publication number: 20040102754
    Abstract: A material is provided that is particularly suited for use in absorbent articles. The material has a base layer of a generally non-elastic material and at least two strips or regions of elastomeric material attached to the base layer material with a space therebetween such that a center region of the base layer material is bordered on at least two sides by composite regions of the elastomeric materials and the base layer material. The center region of base layer material remains generally non-extensible and the composite regions are stretchable in at least a first direction as a result of tensioning and necking-in the base layer material prior to attaching the elastomeric materials. The invention includes methods for making the material, as well as absorbent articles incorporating the materials.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 27, 2004
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr
  • Publication number: 20040102755
    Abstract: An absorbent article incorporates a material having a base layer of a generally fluid permeable material and at least two strips or regions of elastomeric material attached to the base layer material with a space therebetween such that a center region of the base layer material is bordered on at least two sides by composite regions of the elastomeric materials and the base layer material. The center region of base layer material remains generally non-elastic and the composite regions are stretchable in at least a first direction as a result of tensioning and necking-in the base layer material prior to attaching the elastomeric materials. The material may be incorporated as a bodyside liner in the absorbent article.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 27, 2004
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr