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).
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Publication number: 20230098239Abstract: 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: ApplicationFiled: March 31, 2021Publication date: March 30, 2023Inventors: 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
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Publication number: 20230094829Abstract: 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: ApplicationFiled: April 13, 2020Publication date: March 30, 2023Inventors: KyoungRock Kim, HoMyung Yang, YoonJae Park, J. David Tucker, Shawn Jenkins, Fang Wang, Patricia H. Calhoun
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Publication number: 20230087539Abstract: 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: ApplicationFiled: March 31, 2021Publication date: March 23, 2023Inventors: 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
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Publication number: 20230089861Abstract: 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: ApplicationFiled: March 31, 2021Publication date: March 23, 2023Inventors: 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
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Patent number: 9724248Abstract: 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: GrantFiled: January 24, 2014Date of Patent: August 8, 2017Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Janis W. Hughes, Glynis A. Walton, Patricia H. Calhoun, Oomman P. Thomas
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Publication number: 20140142527Abstract: 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: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: Kimberly-Clark Worldwide, Inc.Inventors: Janis W. Hughes, Glynis A. Walton, Patricia H. Calhoun, Oomman P. Thomas
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Patent number: 8709191Abstract: 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: GrantFiled: May 15, 2008Date of Patent: April 29, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Janis Wilson Hughes, Glynis Alicia Walton, Patricia H. Calhoun, Oomman P. Thomas
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Patent number: 8328780Abstract: 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: GrantFiled: November 21, 2002Date of Patent: December 11, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr
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Patent number: 7938921Abstract: 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: GrantFiled: November 22, 2006Date of Patent: May 10, 2011Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Wing-Chak Ng, Janis Wilson Hughes, Patricia H. Calhoun, Glynis Allicia Walton
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Publication number: 20090286444Abstract: 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: ApplicationFiled: May 15, 2008Publication date: November 19, 2009Applicant: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Janis W. Hughes, Glynis A. Walton, Patricia H. Calhoun, Oomman P. Thomas
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Patent number: 7582178Abstract: 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: GrantFiled: November 22, 2006Date of Patent: September 1, 2009Assignee: Kimberly-Clark worldwide, Inc.Inventors: Janis W. Hughes, Wing-Chak Ng, Patricia H. Calhoun, Glynis A. Walton
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Publication number: 20080119102Abstract: 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: ApplicationFiled: November 22, 2006Publication date: May 22, 2008Inventors: Janis W. Hughes, Wing-Chak Ng, Patricia H. Calhoun, Glynis A. Walton
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Publication number: 20080119103Abstract: 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: ApplicationFiled: November 22, 2006Publication date: May 22, 2008Inventors: Wing-Chak Ng, Janis Wilson Hughes, Patricia H. Calhoun, Glynis Allicia Walton
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Patent number: 7294593Abstract: 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: GrantFiled: November 21, 2002Date of Patent: November 13, 2007Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr
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Publication number: 20040102754Abstract: 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: ApplicationFiled: November 21, 2002Publication date: May 27, 2004Applicant: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr
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Publication number: 20040102755Abstract: 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: ApplicationFiled: November 21, 2002Publication date: May 27, 2004Applicant: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Michael T. Morman, Patricia H. Calhoun, James M. Carr