利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.01 秒)

    PROCEDE DE PREPARATION D'UNE COMPOSITION D'AEROGEL MONOLITHIQUE ORGANIQUE SUPER ISOLANT THERMIQUE, CETTE COMPOSITION ET SON UTILISATION.
    2.
    发明公开
    PROCEDE DE PREPARATION D'UNE COMPOSITION D'AEROGEL MONOLITHIQUE ORGANIQUE SUPER ISOLANT THERMIQUE, CETTE COMPOSITION ET SON UTILISATION. 审中-公开
    用于生产单片方法，极端的热ENDS有机气凝胶，这样的组合物及使用

    公开(公告)号：EP3129432A1

    公开(公告)日：2017-02-15

    申请号：EP14722264.0

    申请日：2014-04-11

    申请人： Hutchinson SA

    发明人： HUILLET, Cédric ,  FANNECHERE, Florian ,  SWOBODA, Benjamin ,  DUFOUR, Bruno ,  POUPA, Nadine

    IPC分类号： C08J9/28 ,  B01J13/00 ,  C08G8/20 ,  C08J9/00

    CPC分类号： C08J9/28 ,  B01J13/0091 ,  C08J9/0061 ,  C08J2205/026 ,  C08J2361/04 ,  C08J2361/12 ,  C08J2479/02 ,  F16L59/028

    摘要： The invention relates to a method for preparing a gelled, dried composition that forms a monolithic aerogel having heat conductivity less than or equal to 40 mW.m
    -1 .K
    -1 and is made from a resin made of polyhydroxybenzene(s) and formaldehyde(s). The invention also relates to said aerogel composition and to the use thereof. Said method includes: a) polymerizing, in an aqueous solvent, said polyhydroxybenzene(s) and formaldehyde(s) in the presence of an acid or base catalyst so as to obtain a solution made from said resin; b) gelling the solution resulting from Step a) so as to obtain a gel from the resin; and c) drying the gel so as to obtain a dried gel. According to the invention, Step a) is implemented in the presence of a cationic polyelectrolyte dissolved in said solvent, and the method also includes a Step d) for heat-treating, under inert gas, the dried gel resulting from Step c) at temperatures between 150°C et 500°C so as to obtain the non-pyrolyzed aerogel having heat conductivity that is substantially unchanged after exposure to a humid atmosphere.

    摘要翻译： 。根据本发明，步骤a）中在该溶剂中溶解的阳离子聚电解质的存在下进行的，因此该方法在之间的温度的步骤包括热处理的步骤d）根据在步骤c得到的干燥凝胶的惰性气体） 150℃和500℃，得到非热解气凝胶谁的热传导性基本不变，甚至在暴露于潮湿的气氛之后。