Patents by Inventor Angela Lang

Angela Lang 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: 20080021130
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, 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 compatibility to affix to a thermoplastic material.
    Type: Application
    Filed: October 2, 2007
    Publication date: January 24, 2008
    Inventors: Stan McIntosh, Scott Smith, Angela Lang, David Bergman
  • Publication number: 20070265405
    Abstract: A flexible superabsorbent binder polymer composition including a monoethylenically unsaturated polymer, such as carboxylic acid, sulphonic acid, or phosphoric acid, or salts thereof, and an acrylate or methacrylate ester that contains an alkoxysilane functionality, or a monomer capable of co-polymerization with a compound containing a trialkoxysilane functional group and subsequent reaction with water to form a silanol group wherein the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer of less than about 1000 ppm. The flexible superabsorbent binder polymer composition is particularly suitable for use in manufacturing absorbent articles. A method of making the flexible superabsorbent binder polymer composition includes preparing a monomer solution, adding the monomer solution to an initiator system, and activating a polymerization initiator within the initiator system.
    Type: Application
    Filed: July 27, 2007
    Publication date: November 15, 2007
    Inventors: Angela Lang, Dave Soerens, Iqbal Ahmed, Scott Smith
  • Publication number: 20070135554
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, 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 compatibility to affix to a thermoplastic material.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Inventors: Stan McIntosh, Scott Smith, Angela Lang, David Bergman
  • Publication number: 20070135785
    Abstract: An absorbent article comprises a topsheet, a backsheet which may be joined to the topsheet, and an absorbent core positioned between the topsheet and the backsheet. Additionally, the absorbent core comprises at least a superabsorbent polymer material comprising from about 55 to about 99.9% by weight of polymerizable unsaturated acid group containing monomer, and from about 0.001 to about 5% by weight of internal crosslinking agent which are polymerized and prepared into superabsorbent polymer particles and which further include surface additives. The superabsorbent polymer material can also have a degree of neutralization of greater than about 25%. The result is an absorbent article which exhibits improved performance as well as greater comfort and confidence among the user.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Inventors: Jian Qin, Scott Smith, Stan McIntosh, Angela Lang, David Bergman
  • Publication number: 20070129697
    Abstract: An absorbent article comprises a backsheet and an absorbent layer, where the absorbent layer comprises a flexible superabsorbent binder polymer composition positioned adjacent to the backsheet. The absorbent layer may additionally include a substrate, and the article may additionally include a topsheet. The flexible superabsorbent binder polymer composition may be made from the reaction product of a monomer solution including at least 15% by weight monoethylenically unsaturated monomer, an acrylate or methacrylate ester that contains an alkoxysilane functionality, a copolymerizable hydrophilic glycol containing an ester monomer, an initiator system, and a neutralizing agent. The result is an absorbent article which exhibits improved performance as well as greater comfort and confidence among the user.
    Type: Application
    Filed: December 2, 2005
    Publication date: June 7, 2007
    Inventors: Dave Soerens, Angela Lang, Iqbal Ahmed, Scott Smith
  • Publication number: 20070129517
    Abstract: A process of making the flexible superabsorbent binder polymer composition includes preparing a preneutralized monomer solution having at least about 40 mol % degree of neutralization, preparing a monomer solution including monoethylenically unsaturated monomers, one of which includes an alkyloxysilane functionality, preparing initiator system solutions and adding the solutions to the monomer solution, mixing the foregoing solutions into a polymerization solution, cooling the polymerization solution, and post neutralizing the polymer.
    Type: Application
    Filed: November 17, 2006
    Publication date: June 7, 2007
    Inventors: Angela Lang, Dave Soerens, Iqbal Ahmed, Scott Smith, Michael Lostocco, W. Bunyard
  • Publication number: 20070129696
    Abstract: The present invention provides a translucent absorbent composite having a substrate with a light transmittance of at least about 60% and a flexible superabsorbent binder polymer composition applied to the substrate. The polymer composition may be prepared from the reaction product of a monomer solution including at least 15% by mass monoethylenically unsaturated monomer selected from carboxylic acid, carboxylic acid salts, sulphonic acid, sulphonic acid salts, phosphoric acid, or phosphoric acid salts; an acrylate or methacrylate ester that contains an alkoxysilane functionality; a copolymerizable hydrophilic glycol containing an ester monomer; an initiator system; and a neutralizing agent. The unsaturated monomer is neutralized to at least 25 mol % and the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer content of less than about 1000 ppm. The absorbent composite has a light transmittance of at least 45%.
    Type: Application
    Filed: December 2, 2005
    Publication date: June 7, 2007
    Inventors: Dave Soerens, Angela Lang, Iqbal Ahmed, Scott Smith
  • Publication number: 20070129515
    Abstract: A flexible superabsorbent binder polymer composition including a monoethylenically unsaturated polymer, such as carboxylic acid, sulphonic acid, or phosphoric acid, or salts thereof, and an acrylate or methacrylate ester that contains an alkoxysilane functionality, or a monomer capable of co-polymerization with a compound containing a trialkoxysilane functional group and subsequent reaction with water to form a silanol group wherein the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer of less than about 1000 ppm. The flexible superabsorbent binder polymer composition is particularly suitable for use in manufacturing absorbent articles. A method of making the flexible superabsorbent binder polymer composition includes preparing a monomer solution, adding the monomer solution to an initiator system, and activating a polymerization initiator within the initiator system.
    Type: Application
    Filed: December 2, 2005
    Publication date: June 7, 2007
    Inventors: Angela Lang, Dave Soerens, Iqbal Ahmed, Scott Smith