- 专利标题: Method for recovering dimethyl sulfoxide from recovered resist remover
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申请号: US16630630申请日: 2018-07-31
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公开(公告)号: US11028047B2公开(公告)日: 2021-06-08
- 发明人: Kunio Mayahara , Koji Tamura , Akinobu Takeda
- 申请人: KURARAY CO., LTD.
- 申请人地址: JP Kurashiki
- 专利权人: KURARAY CO., LTD.
- 当前专利权人: KURARAY CO., LTD.
- 当前专利权人地址: JP Kurashiki
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JPJP2017-149846 20170802
- 国际申请: PCT/JP2018/028539 WO 20180731
- 国际公布: WO2019/026868 WO 20190207
- 主分类号: B01D3/34
- IPC分类号: B01D3/34 ; C07C315/06 ; C07C29/80
摘要:
A method for recovering dimethyl sulfoxide, including a step of contacting a recovered resist remover containing at least one compound selected from the group consisting of glycol ether, glycol and triol, and dimethyl sulfoxide with water and performing distillation.
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