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公开(公告)号：US5457248A
公开(公告)日：1995-10-10
申请号：US224345
申请日：1994-04-07
IPC分类号： B01J23/745 , B01J27/128 , C07B61/00 , C07C17/12 , C07C17/38 , C07C17/392 , C07C25/18 , C08K5/02 , C08K5/03 , C08L101/00 , C09K21/08 , C07C17/06 , C07C25/00
CPC分类号： C07C17/12 , C07C17/392
摘要： Described are processes for preparing brominated diphenylalkane products which are far whiter than prior known brominated diphenylalkane products. The resultant white brominated diphenylalkane products also form a part of the present invention, as do formulations incorporating the white brominated diphenylalkane products, and articles prepared therefrom.
摘要翻译： 描述了制备溴化二苯基烷烃产物的方法，其比现有已知的溴化二苯基烷烃产物更白。 得到的白色溴化二苯基烷烃产物也形成本发明的一部分，以及掺入白色溴化二苯基烷烃产物的制剂以及由其制备的制品。
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公开(公告)号：US4754053A
公开(公告)日：1988-06-28
申请号：US48866
申请日：1987-05-12
摘要： Bis(2-ethyl-1-hexyl) tetrabromophthalate produced by the reaction of tetrabromophthalic anhydride with 2-ethyl-1-hexanol in the presence of titanium isopropoxide catalyst may be purified by contacting the reaction mixture with sodium carbonate decahydrate with agitation for a time and at a temperature sufficient to enhance product quality, followed by isolation of bis(2-ethyl-1-hexyl) tetrabromophthalate.
摘要翻译： 在异丙醇钛催化剂存在下通过四溴邻苯二甲酸酐与2-乙基-1-己醇的反应制备的双（2-乙基-1-己基）四溴邻苯二甲酸酯可以通过将反应混合物与碳酸钠十水合物搅拌一段时间 并在足以提高产品质量的温度下，然后分离双（2-乙基-1-己基）四溴邻苯二甲酸酯。
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公开(公告)号：US5637757A
公开(公告)日：1997-06-10
申请号：US420125
申请日：1995-04-11
CPC分类号： C07C67/32
摘要： A method of preparing tetrabromobenzoate compounds from tetrabromophthalic anhydride by reacting tetrabromophthalic anhydride with alcohol in the presence of a decarboxylation catalyst. The reaction may be carried out in an excess of alcohol, or with a near stoichiometric amount of alcohol by performing the reaction in an inert solvent.
摘要翻译： 一种通过在脱羧催化剂存在下使四溴邻苯二甲酸酐与醇反应从四溴邻苯二甲酸酐制备四溴苯甲酸酯化合物的方法。 反应可以在过量的醇中，或者通过在惰性溶剂中进行反应，接近化学计量的醇进行。
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公开(公告)号：US4966946A
公开(公告)日：1990-10-30
申请号：US473317
申请日：1990-02-02
IPC分类号： C08F8/20 , C08F297/04
CPC分类号： C08F8/20
摘要： A block copolymer of polyalkylene and halogenated polystyrene comprises the formula:S'--A--(A--S').sub.min which m is 0, 1, 2, 3 or 4, A is a saturated polyalkylene, and S' is a nuclear brominated polystyrene having from about 0.5 to about 5 bromines per styrene unit. The polystyrene blocks are substantially free of halogen other than bromine and chlorine, and the polyalkylene is substantially free of halogen. The compositions retain the elastomeric properties of the non-halogenated form of the compounds while having significantly reduced flammability.
摘要翻译： 聚亚烷基和卤代聚苯乙烯的嵌段共聚物包括式：S'-A-（A-S'）m，其中m为0,1,2,3或4，A为饱和聚亚烷基，S'为核 每个苯乙烯单元具有约0.5至约5个溴的溴化聚苯乙烯。 聚苯乙烯嵌段基本上不含溴和氯以外的卤素，聚亚烷基基本上不含卤素。 组合物保持了非卤化形式的化合物的弹性体性质，同时具有显着降低的可燃性。
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5.发明授权Perbromination of phenol and diphenyl ether at elevated temperature using bromine as the reaction medium 失效使用溴作为反应介质，在升高的温度下苯酚和二苯醚的溴化
公开(公告)号：US4287373A
公开(公告)日：1981-09-01
申请号：US81035
申请日：1979-10-01
CPC分类号： C07C41/22 , C07C37/62 , Y02P20/582
摘要： A process for the perbromination of phenol and diphenyl ether by brominating the corresponding compound in bromine as the sole reaction medium using metal and metal-containing catalysts at an elevated initial reaction temperature of at least about 35.degree. C., preferably at least about 45.degree. C., substantially enhances reaction productivity without adversely affecting product yield or quality.
摘要翻译： 通过使用含金属和金属的催化剂在升高的初始反应温度至少约35℃，优选至少约45℃下溴化溴中的相应化合物作为唯一反应介质，使苯酚和二苯基醚溴化的方法 C.大大提高了反应生产率，而不会不利地影响产品产量或质量。
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公开(公告)号：US4160112A
公开(公告)日：1979-07-03
申请号：US877189
申请日：1978-02-13
CPC分类号： C07C37/70
摘要： A process for isolating crude pentabromophenol containing occluded bromine and hydrogen bromide as impurities comprising the steps of contacting the crude pentabromophenol with a strong acid such as hydrobromic acid, sulfuric acid, hydrochloric acid and phosphoric acid; heating the mixture in order to remove excess bromine; and recovering of the pentabromophenol, whereby formation of carbonyl-group-containing impurities during isolation is minimized.
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公开(公告)号：USRE35308E
公开(公告)日：1996-07-30
申请号：US432109
申请日：1995-03-13
IPC分类号： C08F8/20 , C08F297/04 , C08F297/08
CPC分类号： C08F8/20
摘要： A block copolymer of polyalkylene and halogenated polystyrene comprises the formula:S'--A--(A--S').sub.min which m is 0, 1, 3 or 4, A is a saturated polyalkylene, and S' is a nuclear brominated polystyrene having from about 0.5 to about 5 bromines per styrene unit. The polystyrene blocks are substantially free of halogen other than bromine and chlorine, and the polyalkylene is substantially free of halogen. The compositions retain the elastomeric properties of the non-halogenated form of the compounds while having significantly reduced flammability.
摘要翻译： 聚亚烷基和卤代聚苯乙烯的嵌段共聚物包括式：S'-A-（A-S'）m，其中m为0,1,3或4，A为饱和聚亚烷基，S'为核溴化聚苯乙烯 每个苯乙烯单元具有约0.5至约5个溴。 聚苯乙烯嵌段基本上不含溴和氯以外的卤素，聚亚烷基基本上不含卤素。 组合物保持了非卤化形式的化合物的弹性体性质，同时具有显着降低的可燃性。
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公开(公告)号：US4835322A
公开(公告)日：1989-05-30
申请号：US110154
申请日：1987-10-19
CPC分类号： C07C41/22
摘要： 4,4'-dibromodiphenyl ether may be obtained in high yield and purity by the uncatalyzed "neat" bromination of diphenyl oxide, followed by methanol digestion.
摘要翻译： 可以通过未催化的二苯基氧化的“纯”溴化，然后甲醇消化，以高产率和纯度获得4,4'-二溴二苯醚。
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公开(公告)号：US3931274A
公开(公告)日：1976-01-06
申请号：US345435
申请日：1973-03-27
摘要： The compounds bis(2,3-dibromopropyl carbonate) of tetrabromobisphenol A and bis(2,3-dibromopropyl carbonate) of tetrachlorobisphenol A are effective fire retardants and impart enhanced fire-retardant properties to normally-combustible polymers by incorporation therein of a fire-retardant amount of one of said compounds or a mixture thereof. The fire retardancy of such polymer composition is further enhanced by incorporation therein of an additional flame-retardant material, e.g., an arsenic, antimony, or bismuth compound, preferably antimony oxide. Such polymer compositions of enhanced fire-retardancy incorporating a compound of the invention.
摘要翻译： 四溴双酚A的双（2,3-二溴丙基碳酸酯）化合物和四氯双酚A的双（2,3-二溴丙基碳酸酯）化合物是有效的阻燃剂，并且通常在其中加入耐火材料，赋予通常可燃性聚合物更好的阻燃性能， 所述化合物之一或其混合物的阻燃剂量。 通过加入另外的阻燃材料，例如砷，锑或铋化合物，优选氧化锑，进一步提高了这种聚合物组合物的阻燃性。 包含本发明化合物的增强的阻燃性的这种聚合物组合物。
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