Process for producing foamed material from waste paper and the like
    1.
    发明授权
    Process for producing foamed material from waste paper and the like 失效
    从废纸等制造泡沫材料的方法

    公开(公告)号:US5707579A

    公开(公告)日:1998-01-13

    申请号:US729984

    申请日:1996-10-11

    CPC分类号: D21F11/002 D21F5/167 D21J1/06

    摘要: A process for the production of foamed material from waste paper and the like, such as paper, cardboard, waste cardboard or materials with similar properties, are usable in the same way as raw material, either sorted by type of material or as a raw material mixture. First, a liquid-containing pulp is prepared from the raw materials. The foaming and hardening of this pulp takes place under the action of microwave radiation. By using suitable molds permitting an unobstructed access of the radiation to the liquid-containing mass and unhindered expulsion of the resulting vapor, it is possible to manufacture any type of shaped bodies in a continuous or batch-wise process.

    摘要翻译: 用于从诸如纸,纸板,废纸板或具有相似性质的材料的废纸等生产泡沫材料的方法可以以与材料类型或原料分开的原料相同的方式使用 混合物。 首先,从原料制备含液体的纸浆。 这种纸浆的发泡和硬化在微波辐射的作用下进行。 通过使用合适的模具,允许辐射无阻碍地进入含液体的物质并且不受阻碍地排出所得的蒸汽,可以以连续或间歇的方式制造任何类型的成形体。

    Process for producing foam bodies containing cellulose-containing
mixtures and foam bodies produced therefrom
    2.
    发明授权
    Process for producing foam bodies containing cellulose-containing mixtures and foam bodies produced therefrom 失效
    含有含纤维素的混合物和泡沫体的泡沫体的制造方法

    公开(公告)号:US5725733A

    公开(公告)日:1998-03-10

    申请号:US640055

    申请日:1996-04-30

    IPC分类号: C08J9/00 B29B67/20

    摘要: A process produces foam bodies having various properties and containing cellulose-containing materials broken up and/or partially broken up and/or not broken up, and additives, if need be. The cellulose-containing starting materials are first processed further for forming a moist pulp and subsequently subjected to a heat treatment by microwave radiation. The properties of the foam bodies so produced are predetermined by admixing certain substances intensifying the formation of gas in the pulp, increasing the adhesive bond between the particles in the pulp, or which completely or partially convert into a gas either under the influence of heat or of moisture, thus supporting the foaming. Furthermore, other residual and waste materials can be added during the production process, which may be materials of a silicate nature as well, preferably with the objective of reusing such materials in a useful way and of predetermining at the same time certain product properties of the foam bodies.

    摘要翻译: 一种方法产生具有各种性质的泡沫体,并含有分解和/或部分分解和/或不破碎的含纤维素材料,以及添加剂。 首先对含纤维素的起始材料进行进一步处理以形成湿纸浆,然后通过微波辐射进行热处理。 这样制造的泡沫体的性质通过混合某些强化气体在纸浆中形成的物质,增加纸浆中的颗粒之间的粘合剂粘合剂,或在热的影响下完全或部分转化为气体, 的水分,从而支持发泡。 此外,在生产过程中可以添加其它残留物和废料,其可以是硅酸盐性质的材料,优选地以有用的方式重复使用这些材料并且同时预先确定某些产品性质 泡沫体。