发明申请
- 专利标题: METHOD FOR PURIFYING CONTAMINATED POLYMERS
- 专利标题(中): 净化污染聚合物的方法
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申请号: PCT/US2016/038867申请日: 2016-06-23
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公开(公告)号: WO2017003798A1公开(公告)日: 2017-01-05
- 发明人: LAYMAN, John, Moncrief , GUNNERSON, Maggie , SCHONEMANN, Hans , WILLIAMS, Kara
- 申请人: THE PROCTER & GAMBLE COMPANY
- 申请人地址: One Procter & Gamble Plaza Cincinnati, Ohio 45202 US
- 专利权人: THE PROCTER & GAMBLE COMPANY
- 当前专利权人: THE PROCTER & GAMBLE COMPANY
- 当前专利权人地址: One Procter & Gamble Plaza Cincinnati, Ohio 45202 US
- 代理机构: KREBS, Jay A.
- 优先权: US62/186,500 20150630
- 主分类号: C08J11/08
- IPC分类号: C08J11/08 ; C08F6/00 ; B29B17/02
摘要:
A method for purifying a reclaimed polymer, such as a polymer reclaimed from post-consumer use or post-industrial use, is disclosed. The method involves obtaining the reclaimed polymer and dissolving it in a solvent at an elevated temperature and pressure to produce a polymer solution, which is purified at an elevated temperature and pressure by contacting the polymer solution with solid media to produce a purer polymer solution. A purer polymer is then separated from the purer polymer solution.