发明授权
- 专利标题： Crystalline modification of mixtures of a nickel-quencher and a benzophenone and process for its preparation
- 专利标题（中）： 镍猝灭剂和二苯甲酮的混合物的结晶改性及其制备方法
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申请号： US09673683申请日： 2000-12-19
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公开(公告)号： US06620867B1公开(公告)日： 2003-09-16
- 发明人: Carlo Neri , Luciano Pallini , Giovanni Sandre
- 申请人： Carlo Neri , Luciano Pallini , Giovanni Sandre
- 优先权： ITMI98A0863 19980423
- 主分类号： C08K546
- IPC分类号： C08K546
摘要：
Crystalline modification of mixtures comprising (a) a nickel-quencher corresponding to [2,2′-thio-bis(4-t-octylphenolate)-n-butylamine Nickel (II)] and (b) a 2-hydroxy-4-alkyloxybenzophenone corresponding to 2-hydroxy-4-n-octyloxybenzophenone wherein it has two diffraction lines at angles 2{acute over (ø)}=6.291 and 2{acute over (ø)}=6.888 in the X-Ray diffraction spectrum from powders. The said crystalline modification can be used as a light stabilizer for agricultural films based on polyolefins or polyolefinic copolymers.