发明授权
- 专利标题: Process for removing contaminants from polycarbonate solutions
- 专利标题(中): 从聚碳酸酯溶液中除去污染物的方法
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申请号: US508948申请日: 1974-09-24
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公开(公告)号: US3939118A公开(公告)日: 1976-02-17
- 发明人: Alfred Horbach , Hugo Vernaleken
- 申请人: Alfred Horbach , Hugo Vernaleken
- 申请人地址: DT Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DT Leverkusen
- 优先权: DT2350327 19731006
- 主分类号: C08G63/00
- IPC分类号: C08G63/00 ; B01D15/00 ; C08G63/90 ; C08G64/40 ; C08J3/00 ; C08G63/74 ; C08G63/62
摘要:
The contaminating inorganic compounds such as alkali metal salts or alkali metal hydroxides which remain in a polycarbonate solution prepared by reacting phosgene with a dihydroxy-aryl compound are removed by contacting the solution with a molecular sieve.
公开/授权文献
- US5628088A Multistage adjustable device for trunk bracket 公开/授权日:1997-05-13
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