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1. 发明申请

US20050165231A1 Process for making triazine UV absorbers using Lewis acids and reaction promoters 审中-公开
标题翻译：使用路易斯酸和反应促进剂制备三嗪紫外线吸收剂的方法
公开(公告)号：US20050165231A1
公开(公告)日：2005-07-28
申请号：US11089289
申请日：2005-03-24
申请人： Ram Gupta , Dennis Jakiela , Sampath Venimadhavan , Russell Cappadona , Venkatrao Pai
发明人： Ram Gupta , Dennis Jakiela , Sampath Venimadhavan , Russell Cappadona , Venkatrao Pai
IPC分类号： C07D251/14 , C07B61/00 , C07D251/22 , C07D251/24 , C07D251/00
CPC分类号： C07D251/24 , C07D251/22
摘要： It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at least one reaction promoter. This reaction is also unprecedently general as a variety of aromatics can be used to produce a wide selection of 2-halo-4,6-bisaryl-1,3,5-triazines. The novel approach includes the use of the reaction promoters in combination with at least one Lewis acid under certain reaction conditions to promote the formation of 2-halo-4,6-bisaryl-1,3,5-triazine compounds from cyanuric halide. Preferably, the Lewis acids and reaction promoters are combined to form a complex. 2-Halo-4,6-bisaryl-1,3,5-triazines are key intermediates for making 2-(2-oxyaryl)-4,6-bisaryl-1,3,5-triazine class of UV absorbers.
摘要翻译：现在已经广泛研究出人意料地发现，2-卤代-4,6-二芳基-1,3,5-三嗪可以以前所未有的选择性，效率，温和条件制备，并且通过氰尿酰卤与芳族化合物在至少一种路易斯酸和至少一种反应促进剂的存在下进行。该反应也是前所未有的，因为各种芳族化合物可用于产生广泛选择的2-卤代-4,6-二芳基-1,3,5-三嗪。该新方法包括在某些反应条件下使用反应促进剂与至少一种路易斯酸组合以促进由氰尿酰卤形成2-卤代-4,6-二芳基-1,3,5-三嗪化合物。优选将路易斯酸和反应促进剂组合以形成络合物。 2-卤代-4,6-二芳基-1,3,5-三嗪是制备2-（2-氧芳基）-4,6-双芳基-1,3,5-三嗪类UV吸收剂的关键中间体。

2. 发明申请

US20070015920A1 Process for Making Trisaryl Triazine UV Absorbers Using Lewis Acids and Reaction Promoters 有权
标题翻译：使用路易斯酸和反应促进剂制备三芳基三嗪紫外线吸收剂的方法
公开(公告)号：US20070015920A1
公开(公告)日：2007-01-18
申请号：US11531932
申请日：2006-09-14
申请人： Ram Gupta , Dennis Jakiela , Sampath Venimadhavan , Russell Cappadona , Venkatrao Pai
发明人： Ram Gupta , Dennis Jakiela , Sampath Venimadhavan , Russell Cappadona , Venkatrao Pai
IPC分类号： C07D251/18
CPC分类号： C07D251/24 , C07D251/22
摘要： It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at least one reaction promoter. This reaction is also unprecedently general as a variety of aromatics can be used to produce a wide selection of 2-halo-4,6-bisaryl-1,3,5-triazines. The novel approach includes the use of the reaction promoters in combination with at least one Lewis acid under certain reaction conditions to promote the formation of 2-halo-4,6-bisaryl-1,3,5-triazine compounds from cyanuric halide. Preferably, the Lewis acids and reaction promoter's are combined to form a complex 2-Halo-4,6-bisaryl-1,3,5-triazines are key intermediates for making 2-(2-oxyaryl)-4,6-bisaryl-1,3,5-triazine class of UV absorbers.
摘要翻译：现在已经广泛研究出人意料地发现，2-卤代-4,6-二芳基-1,3,5-三嗪可以以前所未有的选择性，效率，温和条件制备，并且通过氰尿酰卤与芳族化合物在至少一种路易斯酸和至少一种反应促进剂的存在下进行。该反应也是前所未有的，因为各种芳族化合物可用于产生广泛选择的2-卤代-4,6-二芳基-1,3,5-三嗪。该新方法包括在某些反应条件下使用反应促进剂与至少一种路易斯酸组合以促进由氰尿酰卤形成2-卤代-4,6-二芳基-1,3,5-三嗪化合物。优选将路易斯酸和反应促进剂组合以形成络合物2-卤代-4,6-二芳基-1,3,5-三嗪是制备2-（2-氧芳基）-4,6-二芳基-1,3,5-三嗪的关键中间体， 1,3,5-三嗪类紫外线吸收剂。

3. 发明授权

US4292206A Use of hollow glass spheres in conjunction with rehydratable alumina for making low density catalyst support beads 失效
标题翻译：将中空玻璃球与可再水化氧化铝结合使用以制备低密度催化剂载体珠
公开(公告)号：US4292206A
公开(公告)日：1981-09-29
申请号：US180559
申请日：1980-08-22
申请人： Robert E. Barnes, Jr. , Venkatrao Pai
发明人： Robert E. Barnes, Jr. , Venkatrao Pai
IPC分类号： B01D53/86 , B01J21/04 , B01J35/08
CPC分类号： B01D53/86 , B01J21/04 , B01J35/08
摘要： For making low density alumina or silica-alumina beads as catalyst support particles for auto-exhaust catalysts, hollow glass spheres of very small diameter are incorporated in the alumina powder mix before it is formed into beads and calcined. The beads may be finished with a surface coat of alumina without the microspheres to improve resistance to abrasion. Preferred beads are made with rehydratable alumina powder.
摘要翻译：为了制备低密度氧化铝或二氧化硅 - 氧化铝珠作为自动排气催化剂的催化剂载体颗粒，在氧化铝粉末混合物形成珠粒并煅烧之前，将非常小直径的中空玻璃球引入氧化铝粉末混合物中。珠可以用没有微球的氧化铝的表面涂层来完成，以改善耐磨性。优选的珠粒由可再水化的氧化铝粉末制成。

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