Patents Assigned to Fushimi Pharmaceutical Company, Limited
  • Patent number: 8470902
    Abstract: A continuous pore elastomer featured by being made of a polyurethane, having a three dimensional network pore structure of which skeletons have an average thickness of 20 ?m or less and 80% or more of the skeletons have a thickness within the range of 2 to 20 ?m, having an apparent density of 0.2 to 0.4 g/cm3, containing a surfactant with a HLB value of 8 or more, and being capable of absorbing water instantly; a process for producing the continuous pore elastomer, comprising a step of extracting out the pore generation agent from the molding with water; and a water-absorbing roller and a swab obtained by using the continuous pore elastomer.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: June 25, 2013
    Assignee: Fushimi Pharmaceutical Company, Limited
    Inventors: Yoshiaki Ito, Katsuyoshi Watanabe