- 专利标题: Hydrogel object and method of manufacturing hydrogel object
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申请号: US16557570申请日: 2019-08-30
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公开(公告)号: US11904058B2公开(公告)日: 2024-02-20
- 发明人: Hiroshi Iwata , Tatsuya Niimi , Yoshihiro Norikane , Takashi Matsumura
- 申请人: RICOH COMPANY, LTD.
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Grüneberg and Myers PLLC
- 优先权: JP 15144653 2015.07.22 JP 15144803 2015.07.22 JP 15145162 2015.07.22
- 主分类号: A61L15/60
- IPC分类号: A61L15/60 ; B33Y70/00 ; C08K5/05 ; B29C64/112 ; C08K5/053 ; B33Y80/00 ; G09B23/30 ; B33Y10/00 ; B29L31/00 ; B29C64/40
摘要:
A hydrogel object includes a polymer and water, wherein the rate of mass loss is not greater than 20 percent by mass when the hydrogel object is left undone for one week at 25 degrees C. and relative humidity of 50 percent.
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