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    1.
    发明专利
    未知

    公开(公告)号：DE3114492A1

    公开(公告)日：1982-10-28

    申请号：DE3114492

    申请日：1981-04-10

    Applicant: DEGUSSA

    Inventor： MUELLER KARL-HANS DIPL CHEM DR ,  NEUMUELLER MATTHIAS ,  TUERK GUENTER DIPL CHEM DR

    IPC: A61K8/00 ,  A61K8/25 ,  A61K8/86 ,  A61Q11/00 ,  A61K7/16

    Abstract: A dental-care composition having improved shelf life in respect of rheology and abrasiveness, which as a novel feature, contains, as a cleansing agent, a bifunctional (thickening and abrasive) precipitated silica characterized by the following physico-chemical properties: -Pendulum - roller - mill Jet mill -BET surface area m2/g 15-110 15-110 -Tamped density g/l 150-750 90-650 -Secondary particle size FIG. 1 FIG. 2 -distribution according to -Coulter Counter -"ALPINE" screen % by 63 mu m weight -Cu abrasion in 10% mg 5-30 5-30 -strength glycerol disper- -sion -Lightness value A % 86-96 90-96 -Viscosity in a 30% 30,000-60,000 30,000-60,000 -strength dispersion in a -1:1 glycerol/water -mixture, Brookfield RTV, -Sp5 - The dental-care composition may additionally contain 0.5-5% by weight of polyethylene glycol or 2-14% by weight of a precipitated silica which in 15% strength dispersion in a glycerol/water mixture has a viscosity of not less than 30,000 mPa.s. Pyrogenic silica can also be employed successfully to regulate the viscosity of the product.

    2.
    发明专利
    未知

    公开(公告)号：DE2755450A1

    公开(公告)日：1979-06-21

    申请号：DE2755450

    申请日：1977-12-13

    Applicant: DEGUSSA

    Inventor： MUELLER KARL-HANS DIPL CHEM DR ,  BARTHEL WALTER ,  OELMUELLER ROLF

    IPC: C08L95/00 ,  C04B26/26 ,  C08K3/36 ,  E01C7/18 ,  E01C7/26

    Abstract: There is provided a process for improving mineral asphaltic coatings for streets and roadways comprising preparing a mixture to be used as the base mineral asphalt coating material, homogeneously mixing in 0.1 to 10 weight % of silica which is either (1) a precipitated silica, (2) a precipitated and spray dried silica or (3) a pyrogenically produced silica and further working this mixture into a mineral asphalt coating for streets and roadways.

    5.
    发明专利
    未知

    公开(公告)号：DE3036537A1

    公开(公告)日：1982-04-22

    申请号：DE3036537

    申请日：1980-09-27

    Applicant: DEGUSSA

    Inventor： MUELLER KARL-HANS DIPL CHEM DR ,  BARTHEL WALTER

    IPC: C08K3/34 ,  C08K7/26 ,  C08L95/00 ,  E01C7/22

    Abstract: A mastic asphalt composition is disclosed which comprises, in addition to the mastic asphalt, 0.2 to 5 wt. % of a crystalline, powdered, synthetic zeolite or zeolite mixture. In addition, the mastic asphalt composition may further contain precipitated silica.

    6.
    发明专利
    未知

    公开(公告)号：DE3028365A1

    公开(公告)日：1982-02-18

    申请号：DE3028365

    申请日：1980-07-26

    Applicant: DEGUSSA

    Inventor： MUELLER KARL-HANS DIPL CHEM DR ,  BARTHEL WALTER

    IPC: C08L95/00 ,  C08K5/54 ,  E01C7/18

    Abstract: Bituminous binders are disclosed which contain at least one silane and show excellent improvement of adhesion. The bituminous binder containing silane is manufactured by heating The bituminous binder to a temperature of 120 DEG -230 DEG C. and stirring in the silane. All known silanes can be used as the silane. The resulting compositions can be used for the production of street surfacings, industrial floors, floorings, building protective paints, roof coating masses, undercoatings for motor vehicles and rail vehicles, and cable covering compounds.

    7.
    发明专利
    未知

    公开(公告)号：DE3001573A1

    公开(公告)日：1981-07-23

    申请号：DE3001573

    申请日：1980-01-17

    Applicant: DEGUSSA

    Inventor： MUELLER KARL-HANS DIPL CHEM DR ,  TAILFER ROLAND ING GRAD ,  TUERK GUENTER DIPL CHEM DR

    IPC: B01D19/04 ,  C09C1/30

    Abstract: Precipitated, jet ground silica with specific physical-chemical properties is mixed with silicone oil, homogenized and heated to produce an antifoam agent. This type of antifoam agent can be used in pharmacy, in producing foam stopping latex emulsion, in the food field, in washing formulations, in the textile industry as well as in the pigment and varnish industries.

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