-
公开(公告)号:US06629419B1
公开(公告)日:2003-10-07
申请号:US09675498
申请日:2000-09-29
IPC分类号: F25D2500
CPC分类号: C09K5/045 , C09K2205/12 , C09K2205/42
摘要: A refrigerant composition comprising a hydrofluorocarbon component including 1,1,1,2-tetrafluoroethane (HFC 134a), the composition further comprising an additive selected from a saturated hydrocarbon or mixture thereof boiling in the range −5 to +70° C.
摘要翻译: 一种包含含有1,1,1,2-四氟乙烷(HFC 134a)的氢氟烃组分的制冷剂组合物,该组合物还包含选自在-5至+ 70℃范围内沸腾的饱和烃或其混合物的添加剂。
-
公开(公告)号:US06604368B1
公开(公告)日:2003-08-12
申请号:US09678473
申请日:2000-10-02
IPC分类号: F25D2500
CPC分类号: C09K5/045 , C09K2205/12 , C09K2205/42
摘要: A refrigerant composition comprising 1,1,1,2-tetafluoroethane (R134a) butane and pentane wherein the weights of butane, pentane and R134a are in the range: Pentane and butane 1-5% R134a 99-95%
摘要翻译: 包含1,1,1,2-四氟乙烷(R134a)丁烷和戊烷的制冷剂组合物,其中丁烷,戊烷和R134a的重量在以下范围内:
-
公开(公告)号:US6117356A
公开(公告)日:2000-09-12
申请号:US242807
申请日:1999-05-07
CPC分类号: C09K5/045 , C09K2205/106 , C09K2205/22 , C09K2205/42
摘要: ?PPA composition is described which comprises carbon dioxide (CO2), at least one hydrofluorocarbon selected from the group consisting of 1,1,1,2tetrafluoroethane (R-134a), 1,1,2,2-tetrafluoroethane (R-134) and 1,1difluoroethane (R-152a), and at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3,3-hexafluoropropane (R-236fa) and 1,1,1,2,3,3-hexafluoropropane (R-236ea). The composition may additionally comprise at least one hydrocarbon and can be used as a replacement for refrigerant R-12 in automobile air conditioning and domestic refrigeration systems.
摘要翻译: PCT No.PCT / GB97 / 02198 Sec。 371日期1999年5月7日 102(e)日期1999年5月7日PCT 1997年8月18日PCT公布。 第WO98 / 08912号公报 日期:1998年3月5日描述了一种组合物,其包含二氧化碳(CO 2),至少一种选自1,1,1,2-四氟乙烷(R-134a),1,1,2,2-四氟乙烷 (R-134)和1,1-二氟乙烷(R-152a),和至少一种选自1,1,1,3,3,3-六氟丙烷(R-236fa)和1,1,1 ,2,3,3-六氟丙烷(R-236ea)。 该组合物可另外包含至少一种烃,并可用作汽车空调和家用制冷系统中制冷剂R-12的替代物。
-
公开(公告)号:US5254772A
公开(公告)日:1993-10-19
申请号:US849604
申请日:1992-03-12
申请人: Wolfgang W. Dukat , John H. Holloway , Eric G. Hope , Matthias Rieland , Paul J. Townson , Richard L. Powell
发明人: Wolfgang W. Dukat , John H. Holloway , Eric G. Hope , Matthias Rieland , Paul J. Townson , Richard L. Powell
CPC分类号: C07C17/10 , C07C17/208
摘要: A process for the preparation of an alkane containing fluorine by contacting a halogenated alkane containing at least one hydrogen atom and at least one halogen atom selected from chlorine, bromine and iodine with a transition metal fluoride selected from osmium hexafluoride, iridium hexafluoride, rhenium hexafluoride, ruthenium pentafluoride, chromium pentafluoride, vanadium pentafluoride, rhenium heptafluoride and uranium hexafluoride, whereby to replace at least one hydrogen atom or at least one chlorine, bromine or iodine atom in said halogenated alkane starting material by a fluorine atom.Use of certain of the defined transition metal fluorides, e.g. OsF.sub.6, IrF.sub.6 and ReF.sub.6 allows the selective replacement of halogen by fluorine, while others, e.g. UF.sub.6, VF.sub.5 and ReF.sub.7 allow selective replacement of hydrogen by fluorine.
-
公开(公告)号:US5113013A
公开(公告)日:1992-05-12
申请号:US515509
申请日:1990-04-26
IPC分类号: B01J23/72 , C07B39/00 , C07B61/00 , C07C51/04 , C07C51/353 , C07C51/363 , C07C63/70 , C07C201/12 , C07C205/11 , C07C205/12
CPC分类号: C07C51/363 , C07C201/12
摘要: A method for the preparation of a fluorine-containing organic compound which comprises reacting a sulphonyl halide of the formula:RfSO.sub.2 Xwhere Rf represents a fluorinated organic radical and X represents a halogen atom, with a reactive organic halide in the presence of a metal known to complex with fluorinated organic radicals.
-
公开(公告)号:US4942203A
公开(公告)日:1990-07-17
申请号:US217226
申请日:1988-07-11
摘要: A polymer composition comprising (1) a polyether polyol which is a product obtained by the free radical addition of a fluoro-olefin of the general formula: ##STR1## wherein Y represents F or fluoroalkyl and Z represents Cl or F(CF.sub.2)m--wherein m is an integer from 0 to 10 or Y and Z together form a (CH.sub.2)p--chain wherein p represents an integer from 2 to 4, to a polytetramethylene gylcol having a molecular weight in the range 162 to 5000 and (2) at least one acrylic polymer. The composition is useful for coating compositions or for the fabrication of films.
-
公开(公告)号:US4559154A
公开(公告)日:1985-12-17
申请号:US636272
申请日:1984-07-31
申请人: Richard L. Powell
发明人: Richard L. Powell
CPC分类号: C09K5/047
摘要: An absorption heat pump system wherein the working fluid is a saturated fluorohydrocarbon or fluorohydrocarbon ether having from 3 to 5 carbon atoms.
摘要翻译: 一种吸收热泵系统,其中工作流体是具有3至5个碳原子的饱和氟代烃或氟代烃醚。
-
公开(公告)号:US06606868B1
公开(公告)日:2003-08-19
申请号:US09677948
申请日:2000-10-02
IPC分类号: F25D2500
CPC分类号: C09K5/045 , C09K2205/12 , C09K2205/42
摘要: A refrigerant composition comprising a hydrofluorocarbon component including 1,1,1,2-tetrafluoroethane (HCFC 134a), the composition further comprising an additive selected from a saturated hydrocarbon or mixture thereof boiling in the range −5 to +70° C.
摘要翻译: 包含含有1,1,1,2-四氟乙烷(HCFC134a)的氢氟烃组分的制冷剂组合物,该组合物还包含选自在-5至+ 70℃范围内沸腾的饱和烃或其混合物的添加剂。
-
公开(公告)号:US5591032A
公开(公告)日:1997-01-07
申请号:US409336
申请日:1995-03-23
申请人: Richard L. Powell , W. Joe Jacobsen
发明人: Richard L. Powell , W. Joe Jacobsen
IPC分类号: F41G3/26
CPC分类号: F41G3/2683
摘要: A laser weapon simulator apparatus for practice in the shooting of a firearm at a target having reflective material thereon. The apparatus includes a laser beam transmitter that is actuable to emit a laser beam of short duration, a laser beam receiver for collecting and processing a reflected portion of the laser beam, circuitry for detecting the emission of the laser beam by the transmitter, and a visual display. The receiver includes circuitry adapted to produce a "hit" signal upon receiving the reflected portion of the laser beam and the detecting circuitry is adapted to produce a "try" signal in response to the emission of the laser beam. The visual display produces an output "hit" display signal upon the concurrent receipt of a "hit" signal from the receiver and a "try" signal from the detecting circuitry.
摘要翻译: 一种激光武器模拟装置,用于在其上具有反光材料的目标枪上射击枪械。 该装置包括可致动以发射短持续时间的激光束的激光束发射器,用于收集和处理激光束的反射部分的激光束接收器,用于检测由发射器发射激光束的电路,以及 视觉显示。 接收机包括适于在接收到激光束的反射部分时产生“命中”信号的电路,并且检测电路适于响应于激光束的发射而产生“尝试”信号。 视觉显示器在从接收器同时接收“命中”信号和来自检测电路的“尝试”信号时产生输出“命中”显示信号。
-
公开(公告)号:US5495056A
公开(公告)日:1996-02-27
申请号:US355306
申请日:1994-12-12
IPC分类号: B01J27/12 , B01J27/125 , B01J27/132 , C07B61/00 , C07C17/361 , C07C19/08
CPC分类号: C07C17/361
摘要: A process for the production of hydrofluorocarbons, in particular hydrofluoroalkanes such as difluoromethane, which comprises contacting an .alpha.-fluoro-ether, in particular a fluorinated dialkyl ether such as bis(fluoromethyl)ether in the liquid phase with a Lewis acid such as a fluoride of Nb, Sb, B, Ta, Al or Ti.
摘要翻译: 一种用于生产氢氟烃,特别是诸如二氟甲烷的氢氟烷烃的方法,其包括使α-氟醚,特别是氟化二烷基醚如液体中的双(氟甲基)醚与路易斯酸如氟化物 的Nb,Sb,B,Ta,Al或Ti。
-
-
-
-
-
-
-
-
-