Blowing compositions
    3.
    发明授权
    Blowing compositions 失效
    吹制成分

    公开(公告)号:US5145606A

    公开(公告)日:1992-09-08

    申请号:US716391

    申请日:1991-06-17

    IPC分类号: C08J9/14

    CPC分类号: C08J9/144 Y10S521/91

    摘要: The present invention provides blowing compositions for preparing foamed or expanded products of thermoplastics. Each of the blowing compositions comprises a combination of two of halogenated hydrocarbons.

    摘要翻译: 本发明提供了用于制备热塑性塑料的发泡或膨胀产品的吹塑组合物。 每种发泡组合物包含两种卤代烃的组合。

    Refrigerator and difluoromethane/Pentafluoroethane/1,1,1,2-tetrafluoroethane working fluid
    5.
    发明授权
    Refrigerator and difluoromethane/Pentafluoroethane/1,1,1,2-tetrafluoroethane working fluid 失效
    冰箱和二氟甲烷/五氟乙烷/ 1,1,1,2-四氟乙烷工作液

    公开(公告)号:US06187219B1

    公开(公告)日:2001-02-13

    申请号:US09228654

    申请日:1999-01-12

    IPC分类号: C09K504

    CPC分类号: C09K5/045 C09K2205/22

    摘要: The invention provides a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula ClHmFn  (1) wherein when l is 1, m is an integer of 1 or 2, n is an integer of 2 or 3 and m+n=4; when l is 2, m is an integer of 1 to 4, n is an integer of 2 to 5 and m+m=6; and when l is 3, m is an integer of 1 to 3, n is an integer of 5 to 7 and m+n=8.

    摘要翻译: 本发明提供一种制冷剂,其包含三种选自以下组中的三种化合物的混合物,所述三种化合物由式(Ⅳ)所示的氢氟烷代表,当l为1时,m为1或2的整数,n为2或3的整数,m + n = 4 ; 当l为2时,m为1〜4的整数,n为2〜5的整数,m + m = 6。 当l为3时,m为1〜3的整数,n为5〜7的整数,m + n = 8。

    Refrigerant
    7.
    发明授权
    Refrigerant 失效
    制冷剂

    公开(公告)号:US06183660B2

    公开(公告)日:2001-02-06

    申请号:US08934208

    申请日:1997-09-19

    IPC分类号: C09K504

    CPC分类号: C09K5/045 C09K2205/22

    摘要: The invention provides a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula ClHmFn  (1) wherein when l is 1, m is an integer of 1 or 2, n is an integer of 2 or 3 and m+n=4; when l is 2, m is an integer of 1 to 4, n is an integer of 2 to 5 and m+m=6; and when l is 3, m is an integer of 1 to 3, n is an integer of 5 to 7 and m+n=8.

    摘要翻译: 本发明提供一种制冷剂,其包含三种选自以下组中的三种化合物的混合物,所述三种化合物由式(Ⅳ)所示的氢氟烷代表,当l为1时,m为1或2的整数,n为2或3的整数,m + n = 4 ; 当l为2时,m为1〜4的整数,n为2〜5的整数,m + m = 6。 当l为3时,m为1〜3的整数,n为5〜7的整数,m + n = 8。