发明授权
- 专利标题: Process for purifying impure diphenols
- 专利标题(中): 净化不纯二酚的方法
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申请号: US755983申请日: 1976-12-30
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公开(公告)号: US4107443A公开(公告)日: 1978-08-15
- 发明人: Victor Mark , Charles Vernon Hedges
- 申请人: Victor Mark , Charles Vernon Hedges
- 申请人地址: MA Pittsfield
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: MA Pittsfield
- 主分类号: C07C37/70
- IPC分类号: C07C37/70 ; C07C27/00 ; C07C37/84 ; C07C39/15 ; C07C67/00 ; C07C37/22 ; C07C37/24
摘要:
A process for improving the quality of diphenols by recrystallization from aqueous solvent systems.
公开/授权文献
- US5837990A Portable optical scanning system including ring and track 公开/授权日:1998-11-17
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