发明授权
US5620838A Photographic elements containing directly dispersible UV absorbing
polymers and method of making such elements and polymers
失效
含有直接分散的UV吸收聚合物的照相元件和制备这些元素和聚合物的方法
- 专利标题： Photographic elements containing directly dispersible UV absorbing polymers and method of making such elements and polymers
- 专利标题（中）： 含有直接分散的UV吸收聚合物的照相元件和制备这些元素和聚合物的方法
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申请号： US361276申请日： 1994-12-21
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公开(公告)号： US5620838A公开(公告)日： 1997-04-15
- 发明人: Tienteh Chen , Hwei-Ling Yau , Edward Schofield
- 申请人： Tienteh Chen , Hwei-Ling Yau , Edward Schofield
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： C07D249/20
- IPC分类号： C07D249/20 ; G03C1/005 ; G03C1/815 ; C07D249/16 ; C07D403/00
摘要：
A polymeric UV absorbing compound which comprises UV absorbing monomeric units of at least 0.05 weight percent of ionic units which have an ionizable group which is ionized at all pH values between 5 to 10. Photographic elements which contain such polymeric compounds and methods of making such polymers and photographic elements, are also provided. The polymeric UV absorbing compounds are directly dispersible in water.
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