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    • 1. 发明授权
    • Process for preparing polycarbonates
    • 聚碳酸酯的制备方法
    • US4330481A
    • 1982-05-18
    • US177030
    • 1980-08-11
    • John F. TimberlakeDaniel W. Baugh, Jr.Bobby Burkes
    • John F. TimberlakeDaniel W. Baugh, Jr.Bobby Burkes
    • C08G64/02C08G64/18C08G64/30C07C69/96
    • C08G64/305C08G64/0208C08G64/18
    • Polycarbonate type nonionic surfactant compositions comprising monohydroxy alcohols capped with polycarbonate groups. More specifically, the surfactant compositions comprise aliphatic, nonaromatic cycloaliphatic or aromatic alcohols which have been capped with block polycarbonate groups formed by the reaction of the alcohols with ethylene carbonate in the presence of an alkali metal salt catalyst. The surfactant properties of the compositions may be varied by first reacting the alcohols with ethylene oxide to form a block polyether group cap on the alcohols before the reaction with ethylene carbonate or by further reacting the polycarbonate capped alcohols with ethylene oxide to form a terminal polyether block group. The surfactants formed are a random distribution mixture of compositions wherein 2 to 20 moles of ethylene carbonate and 3 to 50 moles of ethylene oxide per mole of the alcohols are reacted together.
    • 包含用聚碳酸酯基封端的一羟基醇的聚碳酸酯型非离子表面活性剂组合物。 更具体地说,表面活性剂组合物包括脂肪族,非芳族的脂环族或芳族醇,其已经用碱金属盐催化剂存在下通过醇与碳酸亚乙酯的反应形成的嵌段聚碳酸酯基封端。 组合物的表面活性剂性质可以通过首先使醇与环氧乙烷反应来改变,以在与碳酸亚乙酯反应之前在醇上形成嵌段聚醚基帽,或通过使聚碳酸酯封端的醇与环氧乙烷进一步反应形成末端聚醚嵌段 组。 所形成的表面活性剂是一种组合物的随机分布混合物,其中每摩尔醇将2至20摩尔碳酸亚乙酯和3至50摩尔环氧乙烷反应。
    • 2. 发明授权
    • Polycarbonate type nonionic surfactants
    • 聚碳酸酯型非离子表面活性剂
    • US4415502A
    • 1983-11-15
    • US327375
    • 1981-12-04
    • John F. TimberlakeDaniel W. Baugh, Jr.Bobby Burkes
    • John F. TimberlakeDaniel W. Baugh, Jr.Bobby Burkes
    • C08G64/02C08G64/18C08G64/30C07C69/96
    • C08G64/0208C08G64/18C08G64/305Y10S516/01
    • Polycarbonate type nonionic surfactant compositions comprising monohydroxy alcohols capped with polycarbonate groups. More specifically, the surfactant compositions comprise aliphatic, nonaromatic cycloaliphatic or aromatic alcohols which have been capped with block polycarbonate groups formed by the reaction of the alcohols with ethylene carbonate in the presence of an alkali metal salt catalyst. The surfactant properties of the compositions may be varied by first reacting the alcohols with ethylene oxide to form a block polyether group cap on the alcohols before the reaction with ethylene carbonate or by further reacting the polycarbonate capped alcohols with ethylene oxide to form a terminal polyether block group. The surfactants formed are a random distribution mixture of compositions wherein 2 to 20 moles of ethylene carbonate and 3 to 50 moles of ethylene oxide per mole of the alcohols are reacted together.
    • 包含用聚碳酸酯基封端的一羟基醇的聚碳酸酯型非离子表面活性剂组合物。 更具体地说,表面活性剂组合物包括脂肪族,非芳族的脂环族或芳族醇,其已经用碱金属盐催化剂存在下通过醇与碳酸亚乙酯的反应形成的嵌段聚碳酸酯基封端。 组合物的表面活性剂性质可以通过首先使醇与环氧乙烷反应来改变,以在与碳酸亚乙酯反应之前在醇上形成嵌段聚醚基帽,或通过使聚碳酸酯封端的醇与环氧乙烷进一步反应形成末端聚醚嵌段 组。 所形成的表面活性剂是一种组合物的随机分布混合物,其中每摩尔醇将2至20摩尔碳酸亚乙酯和3至50摩尔环氧乙烷反应。
    • 7. 发明授权
    • Actinide sulfite tetrahydrate and actinide oxysulfite tetrahydrate
    • 锕系亚硫酸四水合物和锕系氧化亚硫酸氢盐四水合物
    • US4211757A
    • 1980-07-08
    • US830751
    • 1977-09-06
    • George W. WattDaniel W. Baugh, Jr.
    • George W. WattDaniel W. Baugh, Jr.
    • C01G43/00C01G56/00
    • C01G56/008C01G43/00C01G56/004C01G56/005C01P2006/80C01P2006/82
    • An actinide dioxide, e.g. uranium dioxide, plutonium dioxide, neptunium dioxide, etc., is prepared by reacting the actinide nitrate hexahydrate with sodium dithionite as a first step; the reaction product from this first step is a novel composition of matter comprising the actinide sulfite tetrahydrate. The reaction product resulting from this first step is then converted to the actinide dioxide by heating it in the absence of an oxygen-containing atmosphere (e.g. nitrogen) to a temperature of about 500.degree. to about 950.degree. C. for about 15 to about 135 minutes. If the reaction product resulting from the first step is, prior to carrying out the second heating step, exposed to an oxygen-containing atmosphere such as air, the resultant product is a novel composition of matter comprising the actinide oxysulfite tetrahydrate which can also be readily converted to the actinide dioxide by heating it in the absence of an oxygen-containing atmosphere (e.g. nitrogen) at a temperature of about 400.degree. to about 900.degree. C. for about 30 to about 150 minutes. Further, the actinide oxysulfite tetrahydrate can be partially dehydrated at reduced pressures (and in the presence of a suitable dehyrating agent such as phosphorus pentoxide). The partially dehydrated product may be readily converted to the dioxide form by heating it in the absence of an oxygen-containing atmosphere (e.g. nitrogen) at a temperature of about 500.degree. to about 900.degree. C. for about 30 to about 150 minutes.
    • 二氧化, 作为第一步,通过使硝酸锕系六水合物与连二亚硫酸钠反应来制备二氧化铀,二氧化钚,二氧化,等。 来自该第一步骤的反应产物是包含锕系亚硫酸盐四水合物的新物质组合物。 然后将由该第一步产生的反应产物在不含氧气氛(例如氮气)的条件下加热至约500℃至约950℃的温度加热至约135℃至约135℃ 分钟。 如果由第一步产生的反应产物在进行第二加热步骤之前暴露于含氧气氛如空气中,则所得产物是包含锕系亚硫酸亚铁盐四水合物的新型组合物,其也可容易地 通过在约400℃至约900℃的温度下在不存在含氧气氛(例如氮气)的条件下将其加热至约30至约150分钟而转化为二氧化锕。 此外,锕系亚硫酸氢四水合物可以在减压下(和在合适的脱氢剂如五氧化二磷存在下)部分脱水。 通过在约500℃至约900℃的温度下在不存在含氧气氛(例如氮气)的条件下加热部分脱水产物可容易地转化为二氧化物形式约30至约150分钟。
    • 9. 发明授权
    • Process for the preparation of uranium dioxide
    • 二氧化铀的制备方法
    • US4012489A
    • 1977-03-15
    • US579494
    • 1975-05-21
    • George W. WattDaniel W. Baugh, Jr.
    • George W. WattDaniel W. Baugh, Jr.
    • C01G43/00C01G43/025C01G56/00C01G43/02
    • C01G43/025C01G43/00C01G56/004C01G56/008C01P2006/80
    • An actinide dioxide, e.g., uranium dioxide, plutonium dioxide, neptunium dioxide, etc., is prepared by reacting the actinide nitrate hexahydrate with sodium dithionite as a first step; the reaction product from this first step is a novel composition of matter comprising the actinide sulfite tetrahydrate. The reaction product resulting from this first step is then converted to the actinide dioxide by heating it in the absence of an oxygen-containing atmosphere (e.g., nitrogen) to a temperature of about 500.degree. to about 950.degree. C. for about 15 to about 135 minutes. If the reaction product resulting from the first step is, prior to carrying out the second heating step, exposed to an oxygen-containing atmosphere such as air, the resultant product is a novel composition of matter comprising the actinide oxysulfite tetrahydrate which can also be readily converted to the actinide dioxide by heating it in the absence of an oxygen-containing atmosphere (e.g., nitrogen) at a temperature of about 400.degree. to about 900.degree. C. for about 30 to about 150 minutes. Further, the actinide oxysulfite tetrahydrate can be partially dehydrated at reduced pressures (and in the presence of a suitable dehydrating agent such as phosphorus pentoxide). The partially dehydrated product may be readily converted to the dioxide form by heating it in the absence of an oxygen-containing atmosphere (e.g., nitrogen) at a temperature of about 500.degree. to about 900.degree. C. for about 30 to about 150 minutes.
    • 作为第一步,通过使硝酸锕系六水合物与连二亚硫酸钠反应来制备二氧化act二氧化物,二氧化dioxide二氧化物,二氧化,等。 来自该第一步骤的反应产物是包含锕系亚硫酸盐四水合物的新物质组合物。 然后将由该第一步产生的反应产物在不存在含氧气氛(例如氮气)的条件下加热至约500℃至约950℃的温度约15至约 135分钟。 如果由第一步产生的反应产物在进行第二加热步骤之前暴露于含氧气氛如空气中,则所得产物是包含锕系亚硫酸亚铁盐四水合物的新型组合物,其也可容易地 通过在约400℃至约900℃的温度下在不存在含氧气氛(例如氮气)的条件下将其加热至约30至约150分钟而转化为二氧化锕。 此外,锕系氧化亚硫酸氢盐四水合物可以在减压下(和在合适的脱水剂如五氧化二磷的存在下)部分脱水。 通过在约500℃至约900℃的温度下在不存在含氧气氛(例如氮气)的条件下加热部分脱水产物可容易地转化为二氧化物形式约30至约150分钟。
    • 10. 发明授权
    • Uranium dioxide preparation
    • 二氧化铀制备
    • US4003980A
    • 1977-01-18
    • US579495
    • 1975-05-21
    • George W. WattDaniel W. Baugh, Jr.
    • George W. WattDaniel W. Baugh, Jr.
    • C01G43/025C01G99/00C01G43/02
    • C01G99/006C01G43/025C01P2006/60C01P2006/80
    • An actinide dioxide, e.g. uranium dioxide, is prepared by reacting an actinide nitrate or hydrate or tetrahydrofuranate thereof, e.g. uranyl nitrate, a hydrate of uranyl nitrate or a tetrahydrofuranate of uranyl nitrate with an alkali or alkaline earth metal adduct of a monocyclic or polycyclic hydrocarbon in the presence of an inert organic solvent. Typically, the starting material may be uranyl nitrate dihydrate or uranyl nitrate ditetrahydrofuranate (the latter material is a novel composition of matter) with a reactant such as the sodium adduct of naphthalene in the presence of a solvent such as tetrahydrofuran. The resultant uranium dioxide may be further purified by heating it in the presence of hydrogen.
    • 二氧化, 二氧化铀是通过使硝酸锕系元素或其水合物或四氢呋喃,例如, 硝酸铀酰,硝酸铀酰的水合物或硝酸铀酰的四氢化物与单环或多环烃的碱金属或碱土金属加成物在惰性有机溶剂的存在下进行。 通常,起始原料可以是硝酸铀酰二水合物或硝酸铀酰二硝酸二铀酸盐(后者是物质的新型组合物)与反应物如萘的加合物在溶剂如四氢呋喃的存在下反应。 所得的二氧化铀可以通过在氢存在下加热来进一步纯化。