发明授权
- 专利标题: Benzofuranyl-benzimidazoles
- 专利标题(中): BENZOFURANYL-BENZIMIDAZOLES
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申请号: US815889申请日: 1977-07-15
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公开(公告)号: US4146725A公开(公告)日: 1979-03-27
- 发明人: Hans R. Meyer , Kurt Weber
- 申请人: Hans R. Meyer , Kurt Weber
- 申请人地址: NY Ardsley
- 专利权人: Ciba-Geigy Corporation
- 当前专利权人: Ciba-Geigy Corporation
- 当前专利权人地址: NY Ardsley
- 优先权: LUX75458 19760726; LUX77216 19770427
- 主分类号: D06L3/12
- IPC分类号: D06L3/12 ; C07D405/04 ; C07D493/04 ; C09B57/00
摘要:
Disclosed are novel benzofuranyl benzimidazoles and a method for their preparation. The novel benzofuranyl benzimidazoles are useful as optical brighteners for optically brightening a wide variety of synthetic, regenerated or natural organic materials or substances, which contain such organic materials.
公开/授权文献
- US5227559A Process for preparing alkyl-subtituted aromatic hydrocarbons 公开/授权日:1993-07-13
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