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    12.
    发明专利
    未知

    公开(公告)号：DE59003709D1

    公开(公告)日：1994-01-13

    申请号：DE59003709

    申请日：1990-12-28

    Applicant: DEGUSSA

    Inventor： SEXTL GERHARD DR ,  REUTER ROLAND ,  STRACK HANS DR ,  KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

    IPC: B32B7/02 ,  B32B5/16 ,  B32B27/08 ,  B65D81/18 ,  B65D81/38 ,  C04B14/36 ,  C04B38/00 ,  E04B1/80 ,  F16L59/00 ,  F16L59/02 ,  F25D23/06

    Abstract: Element, preferably in panel form, for use as thermal insulation, comprising …… a) a finely dispersed, pulverulant or fibrous substance, … b) a microporous covering and … c) a gas-tight and water-proof metal-free covering. …… The element is produced by drying the pulverulant or fibrous substance, if appropriate, introducing it into a microporous covering, if appropriate, compressing it, if appropriate, and then drying it, if appropriate. After that, the pulverulant substance with the microporous covering is introduced into a gas-tight and water-proof, metal-free covering. If appropriate, this gas-tight and water-proof covering is evacuated and sealed. … …

    AQUEOUS SUSPENSION FOR COATING PRODUCTS THAT CONTAIN PYROGENIC SILICA
    16.
    发明专利
    AQUEOUS SUSPENSION FOR COATING PRODUCTS THAT CONTAIN PYROGENIC SILICA 未知

    公开(公告)号：DE3268847D1

    公开(公告)日：1986-03-13

    申请号：DE3268847

    申请日：1982-09-28

    Applicant: DEGUSSA

    Inventor： SCHMIDT SABINE ,  KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

    IPC: C04B30/02 ,  C04B32/02 ,  C04B41/65 ,  C04B41/70

    Abstract: There is prepared an aqueous suspension which in addition to water, consists of 2 to 50 weight % of a mixture of bentonite and inorganic fibers, with the portion of inorganic fiber being 1 to 30 weight % and the portion of bentonite being 1 to 30 weight % and wherein the total amount of solids does not exceed 50 weight %. With the suspension there is attained an improvement of the mechanical properties of thermal insulating molded objects which are employed for thermal insulation and which for example, contain pyrogenically produced silica as a filler by delivery of this suspension on the thermal insulating plate. The suspension can also be delivered on thermal insulating molded bodies on which there is pressed a fiber net or a fiber felt. After applying the suspension several thermal insulating molded bodies can be joined together where the coating formed consisting of bentonite and inorganic fibers acts as binder. The heat insulating molded article in addition to this layer, can have one or more additional coatings based on organic or inorganic lacquer systems, silicone compositions or low melting glazes.

    19.
    发明专利
    未知

    公开(公告)号：DE2931810A1

    公开(公告)日：1981-02-19

    申请号：DE2931810

    申请日：1979-08-06

    Applicant: DEGUSSA

    Inventor： KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

    IPC: C09K21/02 ,  C01B13/22 ,  C01B33/00 ,  C01B33/18 ,  C04B14/04 ,  C04B30/00 ,  C04B32/00 ,  C04B35/14 ,  C04B38/00 ,  C01B33/12

    Abstract: There is prepared pyrogenically produced silicon dioxide-mixed oxide having a BET surface area of 50 to 400 m2/g which contains as a constituent of the mixed oxide: 0.01 to 10 weight % zirconium dioxide or 0.01 to 10 weight % iron oxide (ferric oxide) or 0.01 to 9.9 weight % titanium dioxide. Because of the doping with the foreign oxide the silicon dioxide-mixed oxide is more temperature stable than the undoped silicon dioxide. The product can be used as thermal insulation either as unpressed material in free bulk form or as a compacted mixture.

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