公开(公告)号：CA1129896A

公开(公告)日：1982-08-17

申请号：CA296256

申请日：1978-02-03

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  KNITTEL VOLKER

IPC: C04B24/22 ,  C04B24/32 ,  C04B28/02 ,  C04B31/00 ,  C04B11/14 ,  C04B13/24

Abstract: Hoe 77/K 005 (K-2531) PLASTICIZER COMBINATION FOR bUILDING MATERIALS This invention relates to an additive combination, for watercontaining, setting building material, in particular those of cement, based on an anionic polyelectrolyte, and including at least one nonionic, low-foaming surfactant. The invention also relates to a process for plasticizing water-containing, setting building materials.

公开(公告)号：ES2086431T3

公开(公告)日：1996-07-01

申请号：ES91108345

申请日：1991-05-23

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  MANN HEINZ-JOSEF ,  LUDKE MARTIN

IPC: C04B22/08 ,  C04B24/38 ,  C04B28/02

Abstract: Thickener systems for water-containing building material mixtures consist of 0.01 to 2% by weight of a water-soluble cellulose ether, 0.01 to 2% by weight of polyvinyl alcohol and 0.005 to 1% by weight of boric acid or salts thereof, each of the percentage figures relating to the dry matter content in the building material mixture. … As a result of the addition of boric acid or borax, these thickener systems show an improved thickening effect as compared with those thickener mixtures which consist only of cellulose ether and polyvinyl alcohol.

公开(公告)号：DE2962810D1

公开(公告)日：1982-07-01

申请号：DE2962810

申请日：1979-08-04

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  GIRG FRIEDRICH ,  KNITTEL VOLKER DR

IPC: C04B24/38 ,  C04B28/02 ,  C11D1/66 ,  C04B13/24

公开(公告)号：DE3027005A1

公开(公告)日：1982-02-18

申请号：DE3027005

申请日：1980-07-17

Applicant: HOECHST AG

Inventor： KLEINER HANS-JERG DR ,  KNITTEL VOLKER DR ,  DEBUS GERHARD

IPC: C04B24/00 ,  C04B11/14 ,  C04B13/14

Abstract: Use of dialkyl-phosphinyl-alkane-phosphonic acids having formula R1R2P(=O)-(CH2)n-PO3H2 (I) (where R1 and R2 are Me, Et or propyl and n is 1 or 2) as gypsum setting-retarders, is new. In pref. (I), R1 and R2 are both Me. The gypsum compsns. include plaster of Paris, putty-, joint plaster etc. (I) are easily prepd. known cpds., have appreciable gypsum-setting retardant activity and allow sufficient gypsum processing time.

公开(公告)号：AU4985979A

公开(公告)日：1980-02-21

申请号：AU4985979

申请日：1979-08-13

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  GIRG FRIEDRICH ,  KNITTEL VOLKER DR

IPC: C04B24/38 ,  C04B28/02 ,  C11D1/66 ,  C04B13/24

公开(公告)号：DE2704929B1

公开(公告)日：1978-05-24

申请号：DE2704929

申请日：1977-02-07

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  KNITTEL VOLKER DIPL-CHEM DR

IPC: C04B24/22 ,  C04B24/32 ,  C04B28/02 ,  C04B13/24

Abstract: This invention relates to an additive combination, for water-containing, setting building materials, in particular those of cement, based on an anionic polyelectrolyte, and including at least one nonionic, low-foaming surfactant. The invention also relates to a process for plasticizing water-containing, setting building materials.

公开(公告)号：DK0458328T3

公开(公告)日：1996-05-20

申请号：DK91108345

申请日：1991-05-23

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  MANN HEINZ-JOSEF ,  LUEDKE MARTIN

IPC: C04B22/08 ,  C04B24/38 ,  C04B28/02

Abstract: Thickener systems for water-containing building material mixtures consist of 0.01 to 2% by weight of a water-soluble cellulose ether, 0.01 to 2% by weight of polyvinyl alcohol and 0.005 to 1% by weight of boric acid or salts thereof, each of the percentage figures relating to the dry matter content in the building material mixture. … As a result of the addition of boric acid or borax, these thickener systems show an improved thickening effect as compared with those thickener mixtures which consist only of cellulose ether and polyvinyl alcohol.

公开(公告)号：DE3027040A1

公开(公告)日：1982-02-25

申请号：DE3027040

申请日：1980-07-17

Applicant: HOECHST AG

Inventor： KLEINER HANS-JERG DR ,  KNITTEL VOLKER DR ,  DEBUS GERHARD

IPC: C04B24/00 ,  C07F9/53 ,  C07F9/38

Abstract: The invention relates to dimethylphosphinylalkanephosphonic acids of the general formula I, in which n is 1 or 2, which are used as setting retarders for gypsum. I

公开(公告)号：DE59107703D1

公开(公告)日：1996-05-30

申请号：DE59107703

申请日：1991-05-23

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  MANN HEINZ-JOSEF ,  LUEDKE MARTIN

IPC: C04B22/08 ,  C04B24/38 ,  C04B28/02

Abstract: Thickener systems for water-containing building material mixtures consist of 0.01 to 2% by weight of a water-soluble cellulose ether, 0.01 to 2% by weight of polyvinyl alcohol and 0.005 to 1% by weight of boric acid or salts thereof, each of the percentage figures relating to the dry matter content in the building material mixture. … As a result of the addition of boric acid or borax, these thickener systems show an improved thickening effect as compared with those thickener mixtures which consist only of cellulose ether and polyvinyl alcohol.

公开(公告)号：AT137210T

公开(公告)日：1996-05-15

申请号：AT91108345

申请日：1991-05-23

Applicant: HOECHST AG

Inventor： DEBUS GERHARD ,  MANN HEINZ-JOSEF ,  LUEDKE MARTIN

IPC: C04B22/08 ,  C04B24/38 ,  C04B28/02 ,  C04B22/00 ,  C04B24/26

Abstract: Thickener systems for water-containing building material mixtures consist of 0.01 to 2% by weight of a water-soluble cellulose ether, 0.01 to 2% by weight of polyvinyl alcohol and 0.005 to 1% by weight of boric acid or salts thereof, each of the percentage figures relating to the dry matter content in the building material mixture. … As a result of the addition of boric acid or borax, these thickener systems show an improved thickening effect as compared with those thickener mixtures which consist only of cellulose ether and polyvinyl alcohol.