Patents Assigned to Omrova Solutions Inc.
  • Patent number: 6987153
    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: Grant
    Filed: May 26, 2004
    Date of Patent: January 17, 2006
    Assignee: Omrova Solutions Inc.
    Inventors: David F. Diehl, Carla B. Dittman McBain