-
公开(公告)号：US4375453A
公开(公告)日：1983-03-01
申请号：US334719
申请日：1981-12-28
CPC分类号： C01F17/0081 , C01F17/0012 , C01F17/0043 , C01G15/00 , C01P2004/61 , C01P2006/80
摘要： Gd.sub.2 O.sub.3 and Ga.sub.2 O.sub.3 are currently used for the fabrication of Gd.sub.3 Ga.sub.5 O.sub.12 (GGG) wafers which are employed as substrates for bubble domain memory devices. In the processing, in the order of 25% of the starting material ends up as process "saw kerf" contaminated with variable amounts of iron, nickel, magnesium, aluminum, zirconium, iridium and silicon. A process is described whereby the "saw kerf" can be reprocessed in sufficient purity to be re-used in the process, thereby improving the economics of production of GGG wafers significantly. Gadolinium and gallium oxides are recovered and separated from transition metal impurities introduced during fabrication of GGG wafers. The process "saw kerf" produced from slicing the crystal boule is dissolved in HCl, treated with H.sub.2 SO.sub.4, and the resulting sulfates separated. Metathesis with (NH.sub.4).sub.2 C.sub.2 O.sub.4 results in conversion of the sulfates to the ammonium oxalates which were calcined at 850.degree. C. to form Ga.sub.2 O.sub.3 and Gd.sub.2 O.sub.3 of purity >99.99%. The process can be extended to include purification and re-use of by-products generated in other grinding and polishing operations which may result in the recycling of the order of 80% of the generated by-products.
摘要翻译： Gd2O3和Ga2O3目前用于制造用作气泡域记忆装置底物的Gd 3 Ga 5 O 12（GGG）晶片。 在加工过程中，以可变量的铁，镍，镁，铝，锆，铱和硅污染的工艺“锯切”为起始原料的25％。 描述了一种方法，其中“锯切”可以以足够的纯度重新加工以在该过程中重新使用，从而显着提高了GGG晶片的生产经济性。 钆和镓氧化物被回收并与制造GGG晶片期间引入的过渡金属杂质分离。 将从晶体棒上切下的方法“锯切”溶解在HCl中，用H 2 SO 4处理，所得到的硫酸盐分离。 （NH 4）2 C 2 O 4的复分解导致硫酸盐转化成草酸铵，其在850℃下煅烧以形成纯度> 99.99％的Ga 2 O 3和Gd 2 O 3。 该方法可以扩展到包括在其它研磨和抛光操作中产生的副产物的纯化和再利用，这可能导致生成的副产物的80％的量级的再循环。
-
2.发明授权Polyoxyalkylene glycol refrigeration lubricants having pendant, non-terminal perfluoroalkyl groups 失效具有侧基，非末端全氟烷基的聚氧亚烷基二醇制冷润滑剂
公开(公告)号：US5100569A
公开(公告)日：1992-03-31
申请号：US621163
申请日：1990-11-30
IPC分类号： C10M107/38 , C10M171/00
CPC分类号： C10M171/008 , C10M107/38
摘要： The present invention provides a composition for use in refrigeration and air-conditioning comprising: (a) at least one refrigerant selected from the group consisting of hydrofluorocarbon, hydrochlorofluorocarbon, fluorocarbon, and chlorofluorocarbon; and (b) a sufficient amount to provide lubrication of at least one polyoxyalkylene glycol. The polyoxyalkylene glycol has at least one pendant non-terminal perfluorinated alkyl group on its hydrocarbon polymer backbone. The polyoxyalkylene glycol is terminated with a group selected from the group consisting of hydrogen, alkyl, and fluoroalkyl. The polyoxyalkylene glycol has a molecular weight of about 300 to about 4,000 and a viscosity of about 5 to about 300 centistokes at 37.degree. C. The polyoxyalkylene glycol is miscible in combination with the refrigerant in the range between about -40.degree. C. and at least about +20.degree. C.
摘要翻译： 本发明提供一种用于制冷和空调的组合物，包括：（a）至少一种选自氢氟碳化合物，氢氯氟烃，氟碳化合物和氯氟烃的制冷剂; 和（b）足够的量以提供至少一种聚氧亚烷基二醇的润滑。 聚氧亚烷基二醇在其烃聚合物主链上具有至少一个侧链的非末端全氟化烷基。 聚氧亚烷基二醇用选自氢，烷基和氟代烷基的基团封端。 聚氧亚烷基二醇的分子量为约300至约4,000，在37℃下的粘度为约5至约300厘沲。聚氧亚烷基二醇可与制冷剂混合在约-40℃和 至少约+20℃
-
公开(公告)号：US4584184A
公开(公告)日：1986-04-22
申请号：US612282
申请日：1984-05-21
CPC分类号： C01G43/01 , C01G39/00 , C01G39/02 , C01G43/00 , C22B34/34 , C22B60/0247 , C22B7/008 , C01P2006/80 , Y02P10/234
摘要： A method for treating process waste consisting of uranium hexafluoride, UF.sub.6, molybdenum hexafluoride, MoF.sub.6 and molybdenum oxytetrafluoride, MoOF.sub.4 is provided wherein the foregoing mixture is hydrolyzed in an aqueous solution of ammonium carbonate and ammonium hydroxide. The resulting mother liquor is digested at 60.degree.-80.degree. C. to drive off carbon dioxide and convert the ammonium uranyl carbonate, (NH.sub.4).sub.4 UO.sub.2 (CO.sub.3).sub.3 to ammonium diuranate, (NH.sub.4).sub.2 U.sub.2 O.sub.7. The pH is maintained above 9 to prevent premature precipitation of the molybdenum values as molybdic acid or uranyl molybdate.The ammonium diuranate which forms as a yellow solid is filtered, slurried in aqueous ammonium hydroxide, filtered and dried. The yield is quantitative. Pyrolysis results in conversion of the diuranate salt to uranium oxide, U.sub.3 O.sub.8, of suitable purity to be recycled in the uranium hexafluoride production process. The combined filtrates which contain the molybdenum values and ammonium fluoride by-product are diluted, and stirred, with 95% ethanol to precipitate white, crystalline, ammonium molybdate, (NH.sub.4).sub.2 MoO.sub.4. The ammonium fluoride remains soluble. The ammonium molybdate is filtered, dried and calcined at 600.degree. C. for 2 hours to yield molybdenum trioxide, MoO.sub.3 in >90% yield and essentially free of uranium contamination. Fluoride contamination in either of the reprocessed materials is minimal.
摘要翻译： 一种用于处理由六氟化铀，UF 6，六氟化钼，MoF 6和四氟化钼组成的处理废物的方法，其中上述混合物在碳酸铵和氢氧化铵的水溶液中水解。 将得到的母液在60°-80℃下消化以除去二氧化碳，并将碳酸铀酸铵（NH4）4UO2（CO3）3转化成二氢铀酸铵（NH4）2U2O7。 pH值保持在9以上，以防止钼值过早沉淀为钼酸或钼酸铀。 过滤形成黄色固体的二异氰酸铵，在氢氧化铵水溶液中浆化，过滤并干燥。 产量是定量的。 热解导致将二铀酸盐转化为具有合适纯度的氧化铀U3O8，以在六氟化铀生产过程中再循环。 将含有钼值和氟化铵副产物的合并滤液稀释，并用95％乙醇搅拌，沉淀出白色，结晶，钼酸铵（NH 4）2 OO 4。 氟化铵保持溶解。 将钼酸铵过滤，干燥并在600℃下煅烧2小时，得到三氧化钼，MoO 3> 90％产率，基本上不含铀污染物。 任何一种后处理材料中的氟化物污染最小。
-
4.发明授权Refrigeration lubricants prepared by polymerizing alkene having a perfluoroalkyl group on one end thereof 失效通过在其一端聚合具有全氟烷基的烯烃制备的制冷润滑剂
公开(公告)号：US5534176A
公开(公告)日：1996-07-09
申请号：US380470
申请日：1995-01-30
IPC分类号： C09K5/04 , C10M107/38 , C10M171/00
CPC分类号： C09K5/045 , C10M107/38 , C10M171/008 , C09K2205/124 , C09K2205/24 , C10M2211/022 , C10M2211/06 , C10M2213/02 , C10M2213/062 , C10N2240/00 , C10N2240/22 , C10N2240/30 , C10N2240/50 , C10N2240/52 , C10N2240/54 , C10N2240/56 , C10N2240/58 , C10N2240/60 , C10N2240/66
摘要： The present invention provides a composition for use in refrigeration and air-conditioning comprising: (a) at least one refrigerant selected from the group consisting of hydrofluorocarbon, hydrochlorofluorocarbon, fluorocarbon, and chlorofluorocarbon; and (b) a sufficient amount to provide lubrication of at least one lubricant prepared by polymerizing alkene having a perfluoroalkyl group on one end thereof. The lubricant has a molecular weight of about 300 to about 3,000 and a viscosity of about 5 to about 150 centistokes at 37.degree. C. The lubricant is miscible in combination with the refrigerant in the range between about -40.degree. C. and at least about +20.degree. C.
摘要翻译： 本发明提供一种用于制冷和空调的组合物，包括：（a）至少一种选自氢氟碳化合物，氢氯氟烃，氟碳化合物和氯氟烃的制冷剂; 和（b）足够的量来提供通过在其一端聚合具有全氟烷基的烯烃制备的至少一种润滑剂的润滑。 润滑剂的分子量为约300至约3,000，在37℃下的粘度为约5至约150厘沲。润滑剂可与制冷剂混合在约-40℃至约约 +20℃
-
公开(公告)号：US4548881A
公开(公告)日：1985-10-22
申请号：US699765
申请日：1985-02-08
CPC分类号： H01M4/5835 , H01M6/16
摘要： A cell which employs an active metal anode such as lithium and a liquid organic electrolyte that is improved by the use of a cathode comprised of carbon fluoride chloride is described.The cathode comprises a carbon fluoride chloride of the general formula (C.sub.y F.sub.x Cl.sub.z).sub.n wherein y is 1 to 2, x is greater than 0 to 1.2, z is .ltoreq.0.1 and n defines the number of repeating units occurring in the carbon fluoride chloride molecule of high molecular weight. The resulting battery has improved discharge and shelf-life characteristics.
摘要翻译： 描述了使用通过使用由氟化碳氟化物构成的阴极改善的活性金属阳极例如锂和液体有机电解质的电池。 阴极包含通式为（CyFxClz）n的氟化碳氟化物，其中y为1至2，x大于0至1.2，z为<= 0.1，n为在氟化碳氯化物中存在的重复单元数 高分子量分子。 所得的电池具有改善的放电和保质期特性。
-
6.发明授权Use of low global warming potential (LGWP) solvents for finger print development applications 有权使用低全球变暖潜能（LGWP）溶剂进行指纹开发应用公开(公告)号：US08652244B2
公开(公告)日：2014-02-18
申请号：US13078152
申请日：2011-04-01
CPC分类号： G03C1/73 , A61B5/117 , G06K2009/00946
摘要： Developing compositions are provided herein for use in producing a visibly detectable image of a latent physiological biometric. The developing compositions include a carrier solvent that includes at least one C3-C4 hydrofluorocarbon olefin or at least one hydrochlorofluorocarbon olefin.
摘要翻译： 本文提供显影组合物用于产生潜在生理学的可见可检测图像。 显影组合物包括载体溶剂，其包含至少一种C 3 -C 4氢氟烃烯烃或至少一种氢氯氟烃烯烃。
-
公开(公告)号：US08524955B2
公开(公告)日：2013-09-03
申请号：US13110974
申请日：2011-05-19
申请人： Andrew Joseph Poss , David Nalewajek , Haridasan K. Nair , Michael Van Der Puy , Rajiv Ratna Singh
发明人： Andrew Joseph Poss , David Nalewajek , Haridasan K. Nair , Michael Van Der Puy , Rajiv Ratna Singh
IPC分类号： C07C17/093
摘要： Disclosed is a process for making hexafluoro-2-butyne comprising the steps of: (a) providing a composition comprising CF3CX═CXCF3, where X=halogen; and (b) treating CF3CX═CXCF3 with a dehalogenation catalyst in the presence of a halogen acceptor compound Y, where Y is not hydrogen. The halogen acceptor compound Y is a material capable of being halogenated, preferably a compound having a multiple bond, such as an alkyne, alkene, allene, or carbon monoxide. Another suitable material capable of being halogenated is a cyclopropane. A catalyst effectively transfers halogen from CF3CX═CXCF3 to the halogen acceptor compound. Since Y is not hydrogen, the formation of CF3CX═CHCF3 is greatly reduced or eliminated.
摘要翻译： 公开了制备六氟-2-丁炔的方法，包括以下步骤：（a）提供包含CF 3 C X = CXCF 3的组合物，其中X =卤素; 和（b）在卤素受体化合物Y的存在下用脱卤催化剂处理CF 3 C X = CXCF 3，其中Y不是氢。 卤素受体化合物Y是能够被卤化的物质，优选具有多重键的化合物，如炔烃，烯烃，烯烃或一氧化碳。 能够被卤化的另一种合适的材料是环丙烷。 催化剂有效地将卤素从CF 3 C X = CXCF 3转移到卤素受体化合物。 由于Y不是氢，CF3CX = CHCF3的形成大大降低或消除。
-
公开(公告)号：US20090149681A1
公开(公告)日：2009-06-11
申请号：US12263848
申请日：2008-11-03
IPC分类号： C07C19/08
CPC分类号： C07C17/206 , C07C17/21 , C07C19/08
摘要： A process for the production of C2-C4 hydrofluorocarbon, such as 1,1,1,3,3-pentafluoropropane, by contacting a non-fluorinated hydrochlorocarbon with a fluorinating agent, such as hydrogen fluoride, in a liquid catalyst system preferably comprising fluorinated superacid catalyst prepared from SbF5, NbF5, TaF5 or TaF5/SnF4 and HF.
摘要翻译： 通过使非氟化氢氯烃与氟化氢如氟化氢接触，在液体催化剂体系中将C2-C4氢氟烃如1,1,1,3,3-五氟丙烷生产的方法优选包括含氟化合物 由SbF5，NbF5，TaF5或TaF5 / SnF4和HF制备的超强酸催化剂。
-
公开(公告)号：US07307137B2
公开(公告)日：2007-12-11
申请号：US10466651
申请日：2001-10-18
申请人： Kreisler Lau , Feng Quan Liu , Paul Apen , Boris Korolev , Emma Brouk , Ruslan Zherebin , David Nalewajek , Roger Leung
发明人： Kreisler Lau , Feng Quan Liu , Paul Apen , Boris Korolev , Emma Brouk , Ruslan Zherebin , David Nalewajek , Roger Leung
IPC分类号： C08G63/78
CPC分类号： C08G61/12 , C07C13/615 , C07C13/64 , C07C15/54 , C07C17/10 , C07C17/269 , C07C2603/74 , C07C2603/90 , C07F7/0805 , C08F238/00 , C08G61/02 , H01L2924/0002 , C07C23/46 , C07C25/22 , H01L2924/00
摘要： The present invention is directed to low dielectric polymers and to methods of producing these low dielectric constant polymers, dielectric materials and layers, and electronic components. In one aspect of the present invention, an isomeric mixture of thermosetting monomers, wherein the monomers have a core structure and a plurality of arms, is provided, and the isomeric mixture of thermosetting monomers is polymerized, wherein polymerization comprises a reaction of an ethynyl group that is located in at least one arm of a monomer. In yet another aspect of the inventive subject matter, spin-on low dielectric constant materials are formed having a first backbone with an aromatic moiety and a first reactive group, and a second backbone with an aromatic moiety and a second reactive group, wherein the first and second backbone are crosslinked via the first and second reactive groups in a crosslinking reaction preferably without an additional crosslinker, and wherein a cage structure having at least eight (8) atoms is covalently bound to at least one of the first and second backbone.
摘要翻译： 本发明涉及低介电聚合物以及生产这些低介电常数聚合物，介电材料和层以及电子元件的方法。 在本发明的一个方面，提供其中单体具有核心结构和多个臂的热固性单体的异构体混合物，并且热固性单体的异构体混合物聚合，其中聚合包括乙炔基 其位于单体的至少一个臂中。 在本发明主题的另一方面，形成旋涂低介电常数材料，其具有具有芳族部分和第一反应性基团的第一主链和具有芳族部分和第二反应性基团的第二主链，其中第一 并且第二主链在交联反应中通过第一和第二反应性基团交联，优选不含另外的交联剂，并且其中具有至少八个（8）原子的笼结构共价结合至第一和第二主链中的至少一个。
-
公开(公告)号：US20060122301A1
公开(公告)日：2006-06-08
申请号：US11006879
申请日：2004-12-08
申请人： Haridasan Nair , David Nalewajek
发明人： Haridasan Nair , David Nalewajek
IPC分类号： C08K3/26
CPC分类号： C08F216/125 , C07C41/06 , C07C43/17 , C07C43/172 , C07C2601/14
摘要： Fluorinated divinyl ethers having structures according to Formula I or II: RfCX═CY—O—Z—O—CH═CH2 (I) RfCX═CY—O—M—O—CY═CXRf (II) wherein Rf is fluorine or a C1-C20 fluorinated alkyl; X and Y are independently hydrogen, a halogen, or a C1-C20 fluorinated alkylene; Z is a C1-C20 alkylene, C3-C10 cycloalkylene, four to ten ring member aromatic and non-aromatic heterocycloalkylene, C6-C15 arylene, or C7-C20 arylalkylene; and M is a C1-C20 alkylene, C3-C18 fluorinated alkylene provided that the chain does not terminate with -CHF- or -CF2-, or a C3-C18 diol having the formula —HO—CH2—(CF2)n—CH2—OH— wherein n is an integer from 1 to 16. Curable compositions, polymers, films, coatings, and optical devices comprising fluorinated divinyl ether compounds are also disclosed as well as processes for producing optical devices from the fluorinated divinyl ether compounds and processes for producing the fluorinated divinyl ethers.
摘要翻译： 具有根据式I或II的结构的氟化二乙烯基醚：<？in-line-formula description =“In-line Formulas”end =“lead”？> R CX-CY-OZO-CH -CH 2（I）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas” end =“lead”？> R CX-CY-OMO-CY-CXR （II）<？in-line-formula description =“In-Line Formulas “end =”tail“？>其中R 1是氟或C 1 -C 20氟代烷基; X和Y独立地是氢，卤素或C 1 -C 20氟代亚烷基; Z是C 1 -C 20亚烷基，C 3 -C 10亚环烷基，4至10个环成员 芳族和非芳族杂环亚烷基，C 6 -C 15亚芳基或C 7 -C 20芳基亚烷基; 并且M是C 1 -C 20亚烷基，C 3 -C 18氟化亚烷基，条件是链 不用-CHF-或-CF 2 - 或具有式-HO-CH 2的C 3 -C 18二醇终止， 其中n是1至16的整数。（2）其中n是1至16的整数。 还公开了包含氟化二乙烯基醚化合物的可固化组合物，聚合物，膜，涂料和光学装置，以及从氟化二乙烯基醚化合物生产光学器件的方法和用于生产氟化二乙烯基醚的方法。
-
-
-
-
-
-
-
-
-
搜索结果
96 条记录 (耗时 0.025 秒)
