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公开(公告)号：US4360671A
公开(公告)日：1982-11-23
申请号：US308635
申请日：1981-10-05
IPC分类号： C07D251/32 , C07D251/36
CPC分类号： C07D251/32 , C07D251/36
摘要： A highly pure cyanuric acid produced by pyrolyzing a nitrogenous containing material capable of yielding cyanuric acid, such as urea, in an alkyl dinitrile solvent such as adiponitrile, at elevated temperatures, is disclosed. The overall process converts substantially all of the urea to cyanuric acid and cyanuric acid derivatives which are capable of being converted into trichloroisocyanuric acid and similar compounds, while allowing substantially complete recovery of the nitrile solvent for reuse.
摘要翻译： 公开了通过在高温下将能够产生氰尿酸的含氮材料如尿素在烷基二腈溶剂如己二腈溶解热产生的高纯度的三聚氰酸。 总体方法将基本上所有的尿素转化为能够转化为三氯异氰脲酸和类似化合物的氰尿酸和氰尿酸衍生物，同时允许腈溶剂基本上完全回收再利用。
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公开(公告)号：US4396766A
公开(公告)日：1983-08-02
申请号：US372510
申请日：1982-04-28
IPC分类号： C07D213/89
CPC分类号： C07D213/89
摘要： Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and containing substantially no undesired 2-hydroxypyridine-N-oxide or metal salt complexes thereof, by(1) making sodium pyrithione by reacting a 2-halopyridine-N-oxide with sodium hydrosulfide and sodium carbonate (or a mixture of sodium carbonate and sodium hydroxide) under selected addition temperatures and reaction temperatures and in selected mole ratios; followed by(2) making zinc pyrithione by reacting the sodium pyrithione with a zinc salt.
摘要翻译： 公开了一种制备具有可接受的白色或灰白色并且基本上不含有不需要的2-羟基吡啶-N-氧化物或金属盐络合物的吡啶硫酮锌产物的方法，通过（1）通过使2-卤代吡啶 -N-氧化物与氢硫化钠和碳酸钠（或碳酸钠和氢氧化钠的混合物）在选定的加成温度和反应温度下以选择的摩尔比进行; 然后（2）通过使吡啶硫酮钠与锌盐反应制备吡啶硫酮锌。
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公开(公告)号：US4395453A
公开(公告)日：1983-07-26
申请号：US301160
申请日：1981-09-11
CPC分类号： B32B15/12 , E04B1/94 , Y10S428/92 , Y10S428/921 , Y10T428/24967 , Y10T428/24975 , Y10T428/31692 , Y10T428/31982
摘要： A fire and heat resistant partition having a plurality of lamina between a first side and an opposing second side is provided to protect an object adjacent the first side from a fire or heat generating source adjacent the second side, the first lamina being formed at least partially of aluminum. The first lamina is bonded to at least one ply that is formed from multiple laminae of fibrous material which are bonded to an intermediate lamina of predetermined thickness formed at least partially of aluminum.
摘要翻译： 提供了一种在第一侧和相对的第二侧之间具有多个层板的防火和隔热隔板，用于将邻近第一侧的物体与邻近第二侧的火或发热源保护，第一层至少部分地形成 的铝。 第一层结合至至少一层由多层纤维材料形成的层，该层与至少部分由铝形成的预定厚度的中间层结合。
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14.发明授权
公开(公告)号：US4533736A
公开(公告)日：1985-08-06
申请号：US626951
申请日：1984-07-02
IPC分类号： C07D213/89 , C07F3/06 , A61K31/44
CPC分类号： C07F3/06 , C07D213/89
摘要： Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and preventing or reducing discoloration of sodium pyrithione solutions by treating said sodium pyrithione solutions (which are precursors to zinc pyrithione) with an effective amount of a selected reducing agent to prevent or reduce the discoloration, said reducing agent selected from the class consisting of alkali metal sulfites, alkali metal bisulfites, hydrazine, and mixtures thereof.
摘要翻译： 公开了一种制备具有可接受的白色或灰白色颜色的吡啶硫酮锌产品的方法，通过用有效量的选择的还原剂处理所述吡啶硫酮钠溶液（其是吡啶硫酮锌的前体）来预防或减少吡啶硫酮钠溶液的变色 所述还原剂选自碱金属亚硫酸盐，碱金属亚硫酸氢盐，肼及其混合物。
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15.发明授权Process for the prevention or reduction of discoloration of sodium or zinc pyrithione 失效用于预防或减少吡啶硫酮钠或锌的变色的方法
公开(公告)号：US4482715A
公开(公告)日：1984-11-13
申请号：US352813
申请日：1982-02-26
IPC分类号： C07D213/89 , C07F3/00
CPC分类号： C07F3/003 , C07D213/89 , Y10S514/852
摘要： Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and preventing or reducing discoloration of sodium pyrithione solutions by treating said sodium pyrithione solutions (which are precursors to zinc pyrithione) with an effective amount of a selected reducing agent to prevent or reduce the discoloration, said reducing agent selected from the class consisting of alkali metal sulfites, alkali metal bisulfites, hydrazine, and mixtures thereof.
摘要翻译： 公开了一种制备具有可接受的白色或灰白色颜色的吡啶硫酮锌产品的方法，通过用有效量的选择的还原剂处理所述吡啶硫酮钠溶液（其是吡啶硫酮锌的前体）来预防或减少吡啶硫酮钠溶液的变色 所述还原剂选自碱金属亚硫酸盐，碱金属亚硫酸氢盐，肼及其混合物。
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公开(公告)号：US4405076A
公开(公告)日：1983-09-20
申请号：US412471
申请日：1982-08-30
CPC分类号： B65D3/22 , B32B15/04 , Y10S428/921 , Y10T428/1303 , Y10T428/1314 , Y10T428/1359 , Y10T428/24975 , Y10T428/31692
摘要： A fire and heat resistant container having at least the sidewall partially formed from fibrous material with an inner surface and an outer surface that has a plurality of laminae of predetermined composition and thickness arrayed in a specific manner therebetween is provided to protect an object or substance adjacent the inner surface from a fire or heat generating source adjacent the outer surface. The laminae are bonded together by a fire resistant bonding agent of predetermined thickness.
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17.发明授权
公开(公告)号：US4108792A
公开(公告)日：1978-08-22
申请号：US781372
申请日：1977-03-25
CPC分类号： C01B11/064 , C01B11/06
摘要： The present invention describes a solid calcium hypochlorite composition comprising calcium hypochlorite and about 0.5% to about 50% by weight of substantially water-insoluble and unchlorinated magnesium compounds, said magnesium compounds being derived from impure hydrated lime. Furthermore, the present invention describes a process for making this composition, which is an improvement in the known process for the manufacture of a solid calcium hypochlorite composition wherein an aqueous slurry comprising a hydrated lime, a mixture of hydrated lime and at least one alkali metal hydroxide, or a mixture of hydrated lime and at least one alkali metal hypochlorite, is chlorinated to form an aqueous chlorinated slurry containing calcium hypochlorite and further processing said chlorinated slurry to recover a solid calcium hypochlorite composition.
摘要翻译： 本发明描述了一种包含次氯酸钙和约0.5％至约50％重量的基本上不溶于水和未氯化镁化合物的固体次氯酸钙组合物，所述镁化合物衍生于不纯的熟石灰。 此外，本发明描述了一种制备该组合物的方法，其是制备固体次氯酸钙组合物的已知方法的改进，其中包含熟石灰，熟石灰和至少一种碱金属的混合物 氢氧化物或熟石灰与至少一种碱金属次氯酸盐的混合物被氯化以形成含有次氯酸钙的含水氯化浆料，并进一步处理所述氯化浆料以回收固体次氯酸钙组合物。
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公开(公告)号：US4396142A
公开(公告)日：1983-08-02
申请号：US301243
申请日：1981-09-11
CPC分类号： B32B15/04 , B65D3/22 , Y10S428/921 , Y10T428/1303 , Y10T428/1359 , Y10T428/24975 , Y10T428/31692
摘要： A fire and heat resistant container having at least the sidewall partially formed from fibrous material with an inner surface and an outer surface that has a plurality of laminae of predetermined composition and thickness arrayed in a specific manner therebetween is provided to protect an object or substance adjacent the inner surface from a fire or heat generating source adjacent the outer surface. The laminae are bonded together by a fire resistant bonding agent of predetermined thickness.
摘要翻译： 一种防火耐热容器，至少具有由具有内表面和外表面的纤维材料部分形成的侧壁，所述外表面和外表面具有以特定方式排列的预定组成和厚度的多个层，以保护邻近的物体或物质 来自与外表面相邻的火或发热源的内表面。 通过预定厚度的耐火粘合剂将薄片粘合在一起。
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19.发明授权Process for the preparation of 3-trichloromethyl-5-chloro-1,2,4-thiadiazole 失效制备3-三氯甲基-5-氯-1,2,4-噻二唑的方法
公开(公告)号：US3979403A
公开(公告)日：1976-09-07
申请号：US561765
申请日：1975-03-31
IPC分类号： A01N43/836 , C07D285/08
CPC分类号： C07D285/08
摘要： A process is provided for preparing 3-trichloromethyl-5-chloro-1,2,4-thiadiazole in improved yields by reacting a defined molar excess trichloroacetamidine with trichloromethanesulfenyl chloride while controlling pH of the reaction mixture. The present process may advantageously be employed in a batch or continuous process.
摘要翻译： 提供了一种制备3-三氯甲基-5-氯-1,2,4-噻二唑的方法，通过使定义的摩尔过量的三氯乙酰脒与三氯甲烷磺酰氯反应，同时控制反应混合物的pH，从而提高产率。 本方法可有利地以间歇或连续方法使用。
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