HEAT EXCHANGE METHOD USING FLUORINATED COMPOUNDS HAVING A LOW GWP

    公开(公告)号:WO2020127771A1

    公开(公告)日:2020-06-25

    申请号:PCT/EP2019/086361

    申请日:2019-12-19

    Abstract: The present invention relates to a method for exchanging heat with an electronic computing equipment comprising using a heat transfer fluid which: - has a Prandtl number of from 3 to 100 at 40°C and 1atm pressure - comprises one or more chemical compounds having the general formula: Ph(OR f ) x (I) wherein Ph is an aromatic ring linked to one or more ether groups -OR f where each -R f : - is a monovalent fluorinated alkyl group comprising at least one C-F bond, - has a carbon chain, preferably a C 1 -C 10 carbon chain, which can be linear or can comprise branches and/or cycles, and, optionally, can comprise in chain heteroatoms selected from O, N or S, and wherein, when X>1, the –R f groups on the same molecule can be equal to or different from each other.

    FLUOROPOLYMER COMPOSITION
    23.
    发明申请
    FLUOROPOLYMER COMPOSITION 审中-公开
    氟聚合物组合物

    公开(公告)号:WO2015193321A1

    公开(公告)日:2015-12-23

    申请号:PCT/EP2015/063486

    申请日:2015-06-16

    Abstract: The invention pertains to a fluoropolymer composition comprising: - at least one fluoropolymer [polymer (A)]; - at least one benzoxazine compound [compound (B)] of formula (I), wherein each of R a , equal to or different at each occurrence, is H or a C 1 -C 12 alkyl group; R b is a C 1 -C 36 hydrocarbon group, possibly comprising heteroatoms, optionally comprising at least one benzoxazine group; j is zero or an integer of 1 to 4; each of R c , equal or different at each occurrence, is a halogen or a C 1 -C 36 hydrocarbon group, possibly comprising heteroatoms, optionally comprising at least one benzoxazine group; - at least one aromatic polyimide polymer [polymer (PI)]; - at least one organic solvent [solvent (S)], and to a method for coating a surface, specifically a metal surface, with a fluoropolymer, using said fluoropolymer composition.

    Abstract translation: 本发明涉及含氟聚合物组合物,其包含: - 至少一种含氟聚合物[聚合物(A)]; - 式(I)的至少一种苯并恶嗪化合物[化合物(B)],其中每次出现时等于或不同的R a各自为H或C 1 -C 12烷基; Rb是可能包含杂原子的C1-C36烃基,任选地包含至少一个苯并恶嗪基团; j为0或1〜4的整数; R c在每次出现时相同或不同的是卤素或C 1 -C 36烃基,可能包含杂原子,任选地包含至少一个苯并恶嗪基团; - 至少一种芳族聚酰亚胺聚合物[聚合物(PI)]; - 至少一种有机溶剂[溶剂(S)],以及使用所述含氟聚合物组合物与含氟聚合物一起涂覆表面,特别是金属表面的方法。

    TETRAFLUOROETHYLENE COPOLYMERS
    25.
    发明申请
    TETRAFLUOROETHYLENE COPOLYMERS 审中-公开
    四氢氟乙烯共聚物

    公开(公告)号:WO2013189824A1

    公开(公告)日:2013-12-27

    申请号:PCT/EP2013/062246

    申请日:2013-06-13

    CPC classification number: C08F14/26 C08F214/262 C08F2/24

    Abstract: The invention pertains to a tetrafluoroethylene (TFE) copolymer comprising recurring units derived from at least one perfluoroalkyl(oxy)vinylether of formula CF 2 =CF-O-R f , wherein R f is a C 1 -C 6 perfluoroalkyl radical possibly comprising one or more ethereal oxygen atoms [monomer (F)], in an amount of 0.005 to 0.025 % moles, with respect to the total moles of the copolymer, wherein a particular relation between monomer content and amorphous index is satisfied, and to a process for its manufacture by emulsion polymerization in the presence of certain cyclic surfactants.

    Abstract translation: 本发明涉及包含衍生自式CF2 = CF-O-Rf的至少一种全氟烷基(氧)乙烯基醚的重复单元的四氟乙烯(TFE)共聚物,其中Rf是可能包含一个或多个醚氧原子的C 1 -C 6全氟烷基 相对于共聚物的总摩尔数为0.005〜0.025摩尔%的[单体(F)],其中满足单体含量与无定形指数之间的特定关系,以及其通过乳液聚合制造方法 在某些环状表面活性剂的存在下。

Patent Agency Ranking