INORGANIC FOAMS
    1.
    发明申请
    INORGANIC FOAMS 审中-公开
    无机福祉

    公开(公告)号:US20100127203A1

    公开(公告)日:2010-05-27

    申请号:US12597340

    申请日:2008-04-23

    IPC分类号: E04B1/74 C09K13/00

    摘要: A process for producing a silicate foam having a low density, which comprises the following steps: (a) partial hydrolysis of an aqueous dispersion of SiO2 particles which have an average particle diameter in the range from 1 to 100 nm by means of a strong base, (b) addition of a surfactant and a blowing agent and dispersion of the blowing agent at temperatures below 50° C., (c) foaming of the mixture by heating to a temperature in the range from 35 to 100° C. or by depressurization, (d) stabilization of the foam obtained in step c) by means of a hardener, (e) sintering of the foam at a temperature above 500° C.

    摘要翻译: 一种低密度硅酸盐泡沫的制造方法,包括以下步骤:(a)通过强碱将平均粒径在1〜100nm范围内的SiO 2颗粒的水分散液部分水解 ,(b)在低于50℃的温度下加入表面活性剂和发泡剂和发泡剂的分散体,(c)通过加热至35℃至100℃的温度或通过 减压,(d)通过硬化剂稳定步骤c)中获得的泡沫,(e)在500℃以上的温度下烧结泡沫。

    MELAMINE-RESIN FOAMS COMPRISING HOLLOW MICROBEADS
    2.
    发明申请
    MELAMINE-RESIN FOAMS COMPRISING HOLLOW MICROBEADS 有权
    包含中空麦芽糖的MELAMINE-RESIN FOAMS

    公开(公告)号:US20120225965A1

    公开(公告)日:2012-09-06

    申请号:US13510487

    申请日:2010-11-16

    摘要: The invention relates to foam comprising hollow microbeads and intended for sound absorption, comprising from 40 to 85% by weight of open-cell polymer foam and from 15 to 60% by weight of hollow microbeads with flexible external layer, where the D50 value of the hollow microbeads is at least 70 μm and at most 250 μm, based on the total weight of polymer foam and hollow microbeads, and also to a process for producing the same, comprising the following steps: I) impregnation of an open-cell polymer foam with a liquid dispersion comprising expandable hollow microbeads, II) if appropriate, pressing/compression and/or drying of the polymer foam, and Ill) heat-treatment of the impregnated polymer foam at a temperature above the expansion temperature and below the decomposition temperature of the expandable hollow microbeads, for the expansion of the hollow microbeads.

    摘要翻译: 本发明涉及包含中空微珠并用于吸声的泡沫,其包含40至85重量%的开孔聚合物泡沫和15至60重量%的具有柔性外层的中空微珠,其中D50值 基于聚合物泡沫和中空微珠的总重量,中空微珠的至少70μm和至多250μm,以及其制备方法,包括以下步骤:I)浸渍开孔聚合物泡沫 具有包含可膨胀中空微珠的液体分散体,II)如果合适的话,聚合物泡沫体的压制/压缩和/或干燥,以及III)在高于膨胀温度并低于膨胀温度的温度下浸渍的聚合物泡沫体的热处理 可膨胀的中空微珠,用于中空微珠的膨胀。

    Melamine-resin foams comprising hollow microbeads
    3.
    发明授权
    Melamine-resin foams comprising hollow microbeads 有权
    三聚氰胺树脂泡沫包括中空微珠

    公开(公告)号:US09056961B2

    公开(公告)日:2015-06-16

    申请号:US13510487

    申请日:2010-11-16

    摘要: The invention relates to foam comprising hollow microbeads and intended for sound absorption, comprising from 40 to 85% by weight of open-cell polymer foam and from 15 to 60% by weight of hollow microbeads with flexible external layer, where the D50 value of the hollow microbeads is at least 70 μm and at most 250 μm, based on the total weight of polymer foam and hollow microbeads, and also to a process for producing the same, comprising the following steps: I) impregnation of an open-cell polymer foam with a liquid dispersion comprising expandable hollow microbeads, II) if appropriate, pressing/compression and/or drying of the polymer foam, and III) heat-treatment of the impregnated polymer foam at a temperature above the expansion temperature and below the decomposition temperature of the expandable hollow microbeads, for the expansion of the hollow microbeads.

    摘要翻译: 本发明涉及包含中空微珠并用于吸声的泡沫,其包含40至85重量%的开孔聚合物泡沫和15至60重量%的具有柔性外层的中空微珠,其中D50值为 基于聚合物泡沫和中空微珠的总重量,中空微珠的至少70μm和至多250μm,以及其制备方法,包括以下步骤:I)浸渍开孔聚合物泡沫 具有包含可膨胀中空微珠的液体分散体,II)如果合适的话,聚合物泡沫体的压制/压缩和/或干燥,以及III)在高于膨胀温度和低于膨胀温度的温度下,浸渍的聚合物泡沫体的热处理 可膨胀的中空微珠,用于中空微珠的膨胀。