Patents by Inventor Carla Dittman McBain

Carla Dittman McBain 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).

  • Latex binder for nonwoven fibers and article made therewith
    Publication number: 20030105190
    Abstract: The invention relates to a latex that may be utilized as a binder for nonwoven applications to form a permeable sublayer of personal hygiene articles. The latex is prepared by a process including the steps of (1) polymerizing a monomer mixture comprising styrene, itaconic acid, surfactant and water soluble free radical initiator to form a seed; (2) sequentially adding equal increments of a monomer mixture of styrene, butadiene and acrylic acid to the seed under emulsion polymerization conditions to form a styrene-butadiene-acrylic acid copolymer; and then (3) neutralizing the styrene-butadiene-acrylic acid copolymer to a pH of about 4.5 to 7 to form the latex.
    Type: Application
    Filed: July 29, 2002
    Publication date: June 5, 2003
    Inventors: David F. Diehl, Carla Dittman McBain
  • Latex binder for nonwoven fibers and article made therewith
    Patent number: 6425978
    Abstract: A latex as a binder for nonwoven applications to form a permeable sublayer of personal hygiene articles. The latex is prepared by a process including the steps of (1) polymerizing a monomer mixture comprising styrene, itaconic acid, surfactant and water soluble free radical initiator to form a seed; (2) sequentially adding equal increments of a monomer mixture of styrene, butadiene and acrylic acid to the seed under emulsion polymerization conditions to form a styrene-butadiene-acrylic acid copolymer; and then (3) neutralizing the styrene-butadiene-acrylic acid copolymer to a pH of about 4.5 to 7 to form the latex.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: July 30, 2002
    Assignee: Omnova Solutions Inc.
    Inventors: David F. Diehl, Carla Dittman McBain
  • Latex binder for nonwoven fibers and article made therewith
    Publication number: 20020028858
    Abstract: The invention relates to a latex that may be utilized as a binder for nonwoven applications to form a permeable sublayer of personal hygiene articles. The latex is prepared by a process including the steps of (1) polymerizing a monomer mixture comprising styrene, itaconic acid, surfactant and water soluble free radical initiator to form a seed; (2) sequentially adding equal increments of a monomer mixture of styrene, butadiene and acrylic acid to the seed under emulsion polymerization conditions to form a styrene-butadiene-acrylic acid copolymer; and then (3) neutralizing the styrene-butadiene-acrylic acid copolymer to a pH of about 4.5 to 7 to form the latex.
    Type: Application
    Filed: August 2, 2001
    Publication date: March 7, 2002
    Inventors: David F. Diehl, Carla Dittman McBain
  • Latex binder for nonwoven fibers and article made therewith
    Patent number: 6337359
    Abstract: A latex as a binder for nonwoven applications to form a permeable sublayer of personal hygiene articles. The latex is prepared by a process including the steps of (1) polymerizing a monomer mixture comprising styrene, itaconic acid, surfactant and water soluble free radical initiator to form a seed; (2) sequentially adding equal increments of a monomer mixture of styrene, butadiene and acrylic acid to the seed under emulsion polymerization conditions to form a styrene-butadiene-acrylic acid copolymer; and then (3) neutralizing the styrene-butadiene-acrylic acid copolymer to a pH of about 4.5 to 7 to form the latex.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: January 8, 2002
    Assignee: Gencorp Inc.
    Inventors: David F. Diehl, Carla Dittman McBain