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88 条记录 (耗时 0.021 秒)

    Non-azeotropic refrigerant compositions comprising difluoromethane; 1,1,1-trifluoroethane; or propane
    2.
    发明授权
    Non-azeotropic refrigerant compositions comprising difluoromethane; 1,1,1-trifluoroethane; or propane 失效
    包含二氟甲烷的非共沸制冷剂组合物; 1,1,1-三氟乙烷; 或丙烷

    公开(公告)号：US06500358B2

    公开(公告)日：2002-12-31

    申请号：US09992999

    申请日：2001-11-06

    申请人： Rajiv Ratna Singh ,  David Paul Wilson

    发明人： Rajiv Ratna Singh ,  David Paul Wilson

    IPC分类号： C09K504

    CPC分类号： C09K5/045 ,  C09K2205/22 ,  C09K2205/34 ,  C09K2205/43

    摘要： 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 31 10 degrees C. The refrigerant compositions have a vapor pressure substantially equal to the vapor pressure of HCFC-22.

    摘要翻译： 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31±10℃。制冷剂组合物的蒸汽压基本上等于HCFC-22的蒸气压。

    COMPOSITIONS FOR DRIP FUMIGATION
    9.
    发明申请
    COMPOSITIONS FOR DRIP FUMIGATION 审中-公开
    DRIP FUMIGATION的组成

    公开(公告)号：US20110252694A1

    公开(公告)日：2011-10-20

    申请号：US12762801

    申请日：2010-04-19

    申请人： Andrew Joseph Poss ,  Rajiv Ratna Singh ,  David Nalewajek ,  Cheryl Cantlon

    发明人： Andrew Joseph Poss ,  Rajiv Ratna Singh ,  David Nalewajek ,  Cheryl Cantlon

    IPC分类号： A01M13/00 ,  A01P13/00 ,  A01P5/00 ,  A01N29/00 ,  A01P3/00

    CPC分类号： A01N29/00 ,  A01N25/04 ,  A01N2300/00

    摘要： Soil fumigation compositions are provided herein that include methyl iodide, at least one fluorocarbon or hydrofluorocarbon, at least one surfactant, and water. The fumigant can be produced by combining the water and surfactant with an initial mixture that is an azeotropic or azeotrope-like mixture of methyl iodide and at least one fluorocarbon or hydrofluorocarbon. The fumigant compositions can be utilized in drip fumigation processes, and have increased volatility as compared to methyl iodide alone, which can reduce the risk of water contamination when utilizing methyl iodide as a fumigant.

    摘要翻译： 本文提供了包括甲基碘，至少一种碳氟化合物或氢氟烃，至少一种表面活性剂和水的土壤熏蒸组合物。 熏蒸剂可以通过将水和表面活性剂与初始混合物（其是甲基碘和至少一种碳氟化合物或氢氟烃的共沸或类共沸混合物）混合来制备。 熏蒸剂组合物可用于滴水熏蒸方法，并且与单独的甲基碘相比具有增加的挥发性，当使用甲基碘作为熏蒸剂时，这可以降低水污染的风险。