METHOD FOR MANUFACTURING LOW-MOLECULAR-WEIGHT POLYTETRAFLUOROETHYLENE

    公开(公告)号:US20230032788A1

    公开(公告)日:2023-02-02

    申请号:US17788721

    申请日:2020-12-21

    IPC分类号: C08F114/26 C08L27/18 C08J3/28

    摘要: The invention relates to a method for manufacturing low-molecular-weight polytetrafluoroethylene, comprising: a) a first step of mixing high-molecular-weight polytetrafluoroethylene with at least one additive selected from the group consisting of ethers having formula R1—O—R2, wherein R1 and R2 are independently selected among C1-C10 straight or branched aliphatic group, C4-C10 alicyclic or heterocyclic groups, C5-C10 aromatic or heteroaromatic groups; (per)fluorinated vinyl ethers; (per)fluorinated olefins; and optionally substituted aromatic hydrocarbons, and b) a second step of irradiating the so obtained mixture with ionizing radiation, said second step b) being carried out substantially in the absence of oxygen.

    STABLE COMPOSITIONS OF TRIFLUOROETHYLENE
    8.
    发明申请
    STABLE COMPOSITIONS OF TRIFLUOROETHYLENE 有权
    稳定的三氟乙烯组合物

    公开(公告)号:US20150017064A1

    公开(公告)日:2015-01-15

    申请号:US14376043

    申请日:2013-01-31

    IPC分类号: C07C17/42 C07C17/23 C07C21/18

    摘要: A trifluoroethylene composition which is safe to handle and which can be safely stored and transported at pressures of up to 5.00 MPa. The composition comprises trifluoroethylene and HCl in a molar ratio trifluoroethylene:HCl from 10:90 to 63:37. When the composition is a compressed gas it has a pressure of from 0.50 to 5.00 MPa.

    摘要翻译: 三氟乙烯组合物,其安全处理,并且可以在高达5.00MPa的压力下安全地储存和运输。 该组合物包含三氟乙烯和HCl,摩尔比为10:90至63:37的三氟乙烯:HCl。 当组合物是压缩气体时,其压力为0.50至5.00MPa。