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2. 发明授权

US5498345A Aqueous dispersion of sparingly soluble UV absorbers 失效
标题翻译：微溶紫外线吸收剂的水分散体
公开(公告)号：US5498345A
公开(公告)日：1996-03-12
申请号：US200892
申请日：1994-02-22
申请人： Martin Jollenbeck , Alfred J. Neukom
发明人： Martin Jollenbeck , Alfred J. Neukom
IPC分类号： B01J13/00 , C09B67/22 , C09K3/00 , D06P1/642 , D06P1/651 , D06P3/52 , D06P3/54 , F21V9/04 , D06P5/02
CPC分类号： D06P1/65112 , D06P1/6426
摘要： Aqueous stable dispersions of a mixture of sparingly soluble UV absorbers, which comprises(a) 5 to 50% by weight of a mixture of a benzotriazole of formula ##STR1## and a 2-hydroxybenzophenone of formula ##STR2## wherein R is halogen, C.sub.1 -C.sub.12 alkyl, lower alkoxy, lower alkoxycarbonyl, cycloalkyl, aryl, C.sub.1 -C.sub.12 alkylaryl or aralkyl, and the rings A and B, each independently of the other, may be further substituted by halogen, hydroxy, lower alkyl, lower alkoxy or lower alkoxycarbonyl,R.sub.1 is hydrogen, hydroxy, C.sub.1 -C.sub.14 alkoxy or phenoxy,R.sub.2 is hydrogen, halogen or lower alkyl,R.sub.3 is hydrogen, hydroxy or lower alkoxy, andR.sub.4 is hydrogen or hydroxy,(b) 2 to 18% by weight of an anionic compound, and(c) 0 to 10% by weight of a nonionic compound.These dispersions of a mixture of UV absorbers are excellent compositions for enhancing the lightfastness of dyeings on synthetic fibers and, in particular, on polyester fibers or acid-modified fibers.
摘要翻译：包含（a）5至50重量％的式（I）的苯并三唑和式（2）的2-羟基二苯甲酮的混合物的微溶紫外线吸收剂的混合物的水稳定分散体，其中R为卤素，C 1 -C 12烷基，低级烷氧基，低级烷氧基羰基，环烷基，芳基，C 1 -C 12烷基芳基或芳烷基，环A和B各自独立地可以进一步被卤素，羟基，低级烷基，低级烷氧基或低级烷氧基羰基，R 1为氢，羟基，C 1 -C 14烷氧基或苯氧基，R 2为氢，卤素或低级烷基，R 3为氢，羟基或低级烷氧基，R 4为氢或羟基，（b）2至18％的阴离子化合物，和（c）0〜10重量％的非离子化合物。 UV吸收剂的混合物的这些分散体是用于提高合成纤维上的染色耐光性的优异组合物，特别是聚酯纤维或酸改性纤维上的染色剂的耐光性。

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