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    Block copolymer emulsion and a method of manufacturing the same
    1.
    发明专利
    Block copolymer emulsion and a method of manufacturing the same 失效

    公开(公告)号：JP3591126B2

    公开(公告)日：2004-11-17

    申请号：JP10326396

    申请日：1996-03-29

    Applicant: Jsr株式会社

    Inventor： 芳孝 山川 ,  信夫 川橋 ,  浩司 志保 ,  明彦 森川 ,  恭子 黒田

    IPC: A61L15/16 ,  C08G69/42 ,  C08G77/42 ,  C08G77/455

    Abstract: PROBLEM TO BE SOLVED: To obtain a block copolymer useful as a wound covering material, excellently absorbing a percolation liquid of organism, not holding the percolation liquid between a wound and the wound covering material, comprising specific plural block components. SOLUTION: This block copolymer comprises (A) a block component composed of a poly-α-amino acid and (B) a block component composed of a polymer consisting essentially of a polydiorganosiloxane. When the copolymer is bonded in the form of the component A-the component B-the component A and has about 5,000-1,000,000 molecular weight, this compound is obtained by subjecting an α-amino acid N-carbonic acid anhydride to emulsion polymerization in the presence of an amino group-containing prepolymer.

    Wound dressing
    4.
    发明专利
    Wound dressing 失效

    公开(公告)号：JP3823367B2

    公开(公告)日：2006-09-20

    申请号：JP10326296

    申请日：1996-03-29

    Applicant: Jsr株式会社

    Inventor： 芳孝 山川 ,  信夫 川橋 ,  浩司 志保 ,  明彦 森川 ,  恭子 黒田

    IPC: A61L15/16

    Abstract: PROBLEM TO BE SOLVED: To provide an adhesive plaster capable of absorbing adequately exudate from the wound and aiding effectively the heal up of new skin by forming the plaster with a film or sheet like polymer substrate layer and an adhesive layer containing poly-alpha-amino acid particle of which average diameter is writhin specified extent. SOLUTION: This adhesive plaster suitable to apply on and heal the wound such like cut, scratch, burn and bedsore is composed of a film or sheet like polymer substrate layer and an adhesive layer containing poly-alpha-amino acid particle of which average diameter is within 0.1-100μm, concurrently forming the polymer substrate layer with porous material. Applied for the polymer substrate should be a polymer composed of, for example, polyurethane, polytetrafluoroethylene or polydimethylsiloxane with the thickness basically 5-1000μm. Vapor permeability of the applied substrate layer should fall within 3,000-10,000g/m .24h. Applied suitably for the adhesive agent in the layer is a rubber-based adhesive polymer.

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