中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

27 records (took 0.021 seconds)

    1.
    发明专利
    未知

    公开(公告)号：AT133928T

    公开(公告)日：1996-02-15

    申请号：AT92114980

    申请日：1992-09-02

    Applicant: HOECHST AG

    Inventor： BOEHME-KOVAC JOZEF ,  GIRG FRIEDRICH ,  MANN HEINZ-JOSEF

    IPC: C04B24/22 ,  C04B24/02 ,  C04B24/12 ,  C04B24/20 ,  C04B24/26 ,  C04B24/30 ,  C04B24/38 ,  C04B28/02 ,  E04F13/02

    Abstract: The invention relates to an additive combination for water-containing building material mixtures, the combination containing a) at least 65 % by weight, preferably 65 to 98 % by weight, of a water-soluble cellulose ether or a derivative, b) 1 to 15 % by weight of polyacrylamide, c) 1 to 20 % by weight of alkali metal salt or ammonium salt of a crosslinked polyacrylate which may have been grafted with starch, d) 0-20 % by weight of a starch ether and e) 0 to 15 % by weight of a water-soluble alkali metal salt, alkaline earth metal salt or ammonium salt of arylsulphonic acid/ formaldehyde condensation products or of a sulphonic-acid-modified polycondensation product of melamine and formaldehyde, and to building material mixtures which contain this additive combination. The additive combinations according to the invention are suitable for all water-containing building material mixtures, in particular for plasters, mortars, adhesive mortars and filler compounds.

    3.
    发明专利
    未知

    公开(公告)号：DE1495748A1

    公开(公告)日：1969-11-13

    申请号：DE1495748

    申请日：1963-09-28

    Applicant: HOECHST AG

    Inventor： GUIDO LORENTZ DR ,  GERHART SCHULTZ DR ,  GIRG FRIEDRICH

    IPC: B01D19/04 ,  C04B24/00 ,  C04B28/02 ,  C08J3/03 ,  C08K1/26

    Abstract: Additive for mortar and concrete. Aqueous, synthetic resinous or natural latex dispersion consisting of water, a finely dispersed polymer, an emulsifier and a de-foaming agent comprising a mixture of at least two ethoxylated cpds. that are adducts of ethylene oxide to alkyl phenols, aliphatic alcohols, amines or acids, these ethoxylated cpds. containing identical or different hydrophobic residues and having different degrees of oxethylation.

    Artificial brickwork prodn. using perforated bricks - and thin-layer mortar applied on a passage between perforations and margins with flat sponge
    7.
    发明专利
    Artificial brickwork prodn. using perforated bricks - and thin-layer mortar applied on a passage between perforations and margins with flat sponge 未知

    公开(公告)号：DE3035040A1

    公开(公告)日：1982-04-29

    申请号：DE3035040

    申请日：1980-09-17

    Applicant: HOECHST AG

    Inventor： GIRG FRIEDRICH ,  KNITTEL VOLKER DIPL CHEM DR ,  SLEBOS GERHARD

    IPC: E04B2/14 ,  E04G21/20 ,  E04G21/22

    Abstract: In brickwork prodn. by superimposing a thin mortar layer on highly perforated artificial bricks or blocks, opt. of light- or aerated concrete, the mortar is applied on the stone or block side bearing the perforation openings, on the passages between the perforations, and the margin. The mortar pref. contains a hydraulic or porous binder, aggregate, water, a water-soluble hydro-colloid and opt. resin binder and/or fibres. The equipment (claimed) contains a sheet-like sponge for pressing the thin mortar layer on the passages and margin of the bricks or blocks. The sponge is pref. made of foamed rubber, polyurethane, polyamide, plasticised PVC, viscose, polystyrene, or natural sponge. The brickwork is used in buildings or building units. Material loss is prevented. The mortar is easily absorbed and released by the sponge and adheres well to bricks and blocks and can reach compressive strength at least 10 N/sq.mm. after 28 days.

    10.
    发明专利
    未知

    公开(公告)号：MX9205038A

    公开(公告)日：1993-07-30

    申请号：MX9205038

    申请日：1992-09-02

    Applicant: HOECHST AG

    Inventor： DOHME-KOVAC JOZEF ,  GIRG FRIEDRICH ,  MANN HEINZ-JOSEF

    IPC: C04B24/02 ,  C04B24/22 ,  C04B24/12 ,  C04B24/20 ,  C04B24/26 ,  C04B24/30 ,  C04B24/38 ,  C04B28/02 ,  E04F13/02

    Abstract: The invention relates to an additive combination for water-containing building material mixtures, the combination containing a) at least 65 % by weight, preferably 65 to 98 % by weight, of a water-soluble cellulose ether or a derivative, b) 1 to 15 % by weight of polyacrylamide, c) 1 to 20 % by weight of alkali metal salt or ammonium salt of a crosslinked polyacrylate which may have been grafted with starch, d) 0-20 % by weight of a starch ether and e) 0 to 15 % by weight of a water-soluble alkali metal salt, alkaline earth metal salt or ammonium salt of arylsulphonic acid/ formaldehyde condensation products or of a sulphonic-acid-modified polycondensation product of melamine and formaldehyde, and to building material mixtures which contain this additive combination. The additive combinations according to the invention are suitable for all water-containing building material mixtures, in particular for plasters, mortars, adhesive mortars and filler compounds.

Patent Agency Ranking