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    • 4. 发明授权
    • Non-azeotropic refrigerant compositions comprising difluoromethane or
1,1,1-trifluoroethane
    • 包含二氟甲烷或1,1,1-三氟乙烷的非共沸混合制冷剂组合物
    • US6113803A
    • 2000-09-05
    • US20662
    • 1998-02-09
    • Robert G. RichardIan Robert ShanklandRajiv Ratna Singh
    • Robert G. RichardIan Robert ShanklandRajiv Ratna Singh
    • C09K5/04F25B1/00
    • C09K5/045C09K2205/106C09K2205/12C09K2205/134C09K2205/22C09K2205/34
    • The present invention provides refrigerant blends which are replacements for chlorodifluoromethane (HCFC-22). The present blends have refrigeration characteristics which are similar to HCFC-22. The blends comprise from about 10 to about 90 weight percent of a first component selected from the group consisting of 1,1,1-trifluoroethane, difluoromethane, propane, and mixtures thereof; from about 1 to about 50 weight percent of a second component selected from the group consisting of hydrofluorocarbon having 1 to 3 carbon atoms, fluorocarbon having 1 to 3 carbon atoms, inorganic compound, and mixtures thereof having a boiling point at atmospheric pressure in the range from about -90 degrees C to less than -50 degrees C; and from about 1 to about 50 weight percent of a third component which is hydrofluorocarbon having 1 to 3 carbon atoms, other than 1,1,1-trifluoroethane, having a boiling point at atmospheric pressure in the range from about -50 degrees C to about -10 degrees C. The refrigerant compositions have a vapor pressure substantially equal to the vapor pressure of HCFC-22.
    • 本发明提供了用于二氯甲烷(HCFC-22)的替代物的制冷剂共混物。 本发明共混物具有类似于HCFC-22的制冷特性。 共混物包含约10至约90重量%的选自1,1,1-三氟乙烷,二氟甲烷,丙烷及其混合物的第一组分; 约1至约50重量%的选自碳原子数1〜3的氢氟烃,第1至3个碳原子的碳氟化合物的第二组分,无机化合物及其在大气压下的沸点范围内的混合物 从-90℃到低于-50℃; 和约1至约50重量%的第三组分,其是具有1至3个碳原子的氢氟烃,不同于1,1,1-三氟乙烷,其沸点在大气压下在约-50℃至 约-10℃。制冷剂组合物的蒸气压基本上等于HCFC-22的蒸气压。
    • 7. 发明申请
    • COMPOSITIONS CONTAINING SULFUR HEXAFLUORIDE AND USES THEREOF
    • 含有硫化氢的组合物及其用途
    • US20110232939A1
    • 2011-09-29
    • US13156825
    • 2011-06-09
    • Matthew H. LulyRajiv R. SinghRobert G. Richard
    • Matthew H. LulyRajiv R. SinghRobert G. Richard
    • H05K5/00
    • H01B3/16A62C99/0018H01H2033/566
    • A method for suppressing an electric arc or corona discharge includes providing a device capable of storing, transmitting, or generating an electrical current or field; and enveloping at least a portion of said device with a dielectric gas consisting essentially of: sulfur hexafluoride; a second component selected from the group consisting of nitrous oxide; carbon dioxide; trifluoromethane (R32); trifluoroiodomethane; octafluoropropane (R218); 1,1,1,2,2-pentafluoroethane (R125); propane (R290); 1,1,1,2-tetrafluoropropene (HFO-1234yf); 1,2,3,3-tetrafluoro-2-propene (HFO-1234yc); 1,1,3,3-tetrafluoro-2-propene (HFO-1234zc); 1,1,1,3-tetrafluoro-2-propene (HFO-1234ze); 1,1,2,3-tetrafluoro-2-propene (HFO-1234ye); 1,1,1,2,3-pentafluoropropene (HFO-1225ye); 1,1,2,3,3-pentafluoropropene (HFO-1225yc); 1,1,1,3,3-pentafluoropropene (HFO-1225zc); (Z)1,1,1,3-tetrafluoropropene (HFO-1234zeZ); (Z)1,1,2,3-tetrafluoro-2-propene (HFO-1234yeZ); (E)1,1,1,3-tetrafluoropropene (HFO-1234zeE); (E)1,1,2,3-tetrafluoro-2-propene (HFO-1234yeE); (Z)1,1,1,2,3-pentafluoropropene (HFO-1225yeZ); (E)1,1,1,2,3-pentafluoropropene (HFO-1225yeE) and combinations of two or more of these; and optionally, an additive selected from the group consisting of stabilizers, metal passivators, corrosion inhibitors, and lubricants.
    • 抑制电弧或电晕放电的方法包括提供能够存储,传输或产生电流或场的装置; 以及用基本上由六氟化硫组成的介电气体包封所述装置的至少一部分; 选自由一氧化二氮组成的组的第二组分; 二氧化碳; 三氟甲烷(R32); 三氟碘甲烷 八氟丙烷(R218); 1,1,1,2,2-五氟乙烷(R125); 丙烷(R290); 1,1,1,2-四氟丙烯(HFO-1234yf); 1,2,3,5-四氟-2-丙烯(HFO-1234yc); 1,1,3,3-四氟-2-丙烯(HFO-1234zc); 1,1,1,3-四氟-2-丙烯(HFO-1234ze); 1,1,2,3-四氟-2-丙烯(HFO-1234ye); 1,1,1,2,3-五氟丙烯(HFO-1225ye); 1,1,2,3,3-五氟丙烯(HFO-1225yc); 1,1,1,3,3-五氟丙烯(HFO-1225zc); (Z)1,1,1,3-四氟丙烯(HFO-1234zeZ); (Z)1,1,2,3-四氟-2-丙烯(HFO-1234yeZ); (E)1,1,1,3-四氟丙烯(HFO-1234zeE); (E)1,1,2,3-四氟-2-丙烯(HFO-1234yeE); (Z)1,1,1,2,3-五氟丙烯(HFO-1225yeZ); (E)1,1,1,2,3-五氟丙烯(HFO-1225yeE)及其两种或多种的组合; 和任选的选自稳定剂,金属钝化剂,腐蚀抑制剂和润滑剂的添加剂。