发明授权
US5846214A PVA hydrogel, hydrogel laminate using the same and hydrogel
wound-dressing material using the same
失效
PVA水凝胶，使用其的水凝胶层压体和使用其的水凝胶伤口敷料材料
- 专利标题： PVA hydrogel, hydrogel laminate using the same and hydrogel wound-dressing material using the same
- 专利标题（中）： PVA水凝胶，使用其的水凝胶层压体和使用其的水凝胶伤口敷料材料
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申请号： US824564申请日： 1997-03-26
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公开(公告)号： US5846214A公开(公告)日： 1998-12-08
- 发明人: Keizo Makuuchi , Fumio Yoshii , Yasuaki Kitazaki , Kotohiko Shinozaki , Kazuki Isobe , Yuko Nishisako
- 申请人： Keizo Makuuchi , Fumio Yoshii , Yasuaki Kitazaki , Kotohiko Shinozaki , Kazuki Isobe , Yuko Nishisako
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Nichiban Company Limited,Japan Atomic Energy Research Institute
- 当前专利权人： Nichiban Company Limited,Japan Atomic Energy Research Institute
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX8-077592 19960329; JPX8-077631 19960329; JPX8-077923 19960329
- 主分类号： A61L15/22
- IPC分类号： A61L15/22 ; A61L15/60 ; A61F13/00
摘要：
Disclosed are a PVA hydrogel which comprises being obtained by irradiating a polyvinyl alcohol aqueous solution containing a polymer selected from the group consisting of polyvinyl pyrrolidone, a methyl vinyl ether-maleic anhydride copolymer and an isobutylene-maleic anhydride copolymer, with ionizing radiations, a process for preparing the PVA hydrogel, a hydrogel laminate using the PVA hydrogel, a process for preparing the hydrogel laminate, and a hydrogel wound-dressing material using the PVA hydrogel.
公开/授权文献
- US5254201A Method of stripping off wafer-protective sheet 公开/授权日：1993-10-19