发明授权
US2455674A Light stable compositions comprising polymeric vinylidene chloride and 2-hydroxy-5-chloro-benzophenone-2'-carboxylic acid
失效
包含聚偏二氯乙烯和2-羟基-5-氯 - 二苯甲酮-2'-羧酸的光稳定组合物
- 专利标题: Light stable compositions comprising polymeric vinylidene chloride and 2-hydroxy-5-chloro-benzophenone-2'-carboxylic acid
- 专利标题(中): 包含聚偏二氯乙烯和2-羟基-5-氯 - 二苯甲酮-2'-羧酸的光稳定组合物
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申请号: US79043647申请日: 1947-12-08
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公开(公告)号: US2455674A公开(公告)日: 1948-12-07
- 发明人: HAVENS CARL B
- 申请人: DOW CHEMCIAL COMPANY
- 专利权人: Dow Chemcial Company
- 当前专利权人: Dow Chemcial Company
- 优先权: US79043647 1947-12-08
- 主分类号: C08K5/136
- IPC分类号: C08K5/136
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