公开(公告)号：BR8503457A

公开(公告)日：1986-04-15

申请号：BR8503457

申请日：1985-07-19

Applicant: HOECHST AG

Inventor： REBSDAT SIEGFRIED DR ,  MAYER SIGMUND ,  ALFRANSEDER JOSEF ,  KAULICH HERBERT ,  SCHAFFELHOFER IWO DR

IPC: C07D303/04 ,  B01J23/66 ,  B01J37/02 ,  C07B61/00 ,  C07D301/10 ,  B01J23/54

公开(公告)号：CH539619A

公开(公告)日：1973-07-31

申请号：CH1185370

申请日：1970-08-06

Applicant: HOECHST AG

Inventor： HAHN HELMUT DR ,  SCHWERER OTTO DR ,  REBSDAT SIEGFRIED DR

IPC: C07C311/03 ,  C07C67/00 ,  C07C301/00 ,  C07C303/40 ,  C07C311/00 ,  C07C311/15 ,  F16K35/00 ,  C07C143/72

公开(公告)号：DE2060041A1

公开(公告)日：1972-06-29

申请号：DE2060041

申请日：1970-12-05

Applicant: HOECHST AG

Inventor： DOERFELT CHRISTOPH DR ,  REBSDAT SIEGFRIED DR

IPC: C07C17/23 ,  C07C17/269 ,  C07C19/08

公开(公告)号：DE1770795A1

公开(公告)日：1971-12-02

申请号：DE1770795

申请日：1968-07-04

Applicant: HOECHST AG

Inventor： HAHN HELMUT DR ,  MUELLER KLAUS-DIETER DR ,  REBSDAT SIEGFRIED DR ,  SCHUIERER ERICH DR

IPC: C09K3/18 ,  C08F26/00 ,  C08F26/02 ,  C08G61/00 ,  D06M15/21 ,  D06M15/277 ,  F27B21/06 ,  G07B13/04 ,  C08F3/90

Abstract: 1,241,496. Making textile oil and water repellants. FARBWERKE HOECHST A.G. 3 July, 1969 [4 July, 1968; 17 Oct., 1968], No. 33557/69. Heading D1P. [Also in Divisions C2 and C3] Fibrous materials and textile materials containing cellulose and/or wool are rendered oil and water repellant by treatment with a polymer having recurring units, which may be the same or different, of the formula in which Rf represent a perfluoun alkyl group having from 3 to 10 carbon atoms, the number of carbon atoms in each Rf group being variable within the polymer, and X and Y, which may be the same or different, each represents a fluorine atom or a hydrogen atom.

公开(公告)号：CH513902A

公开(公告)日：1971-10-15

申请号：CH1079269

申请日：1969-07-14

Applicant: HOECHST AG

Inventor： SCHERER OTTO DR ,  HAHN HELMUT DR ,  HARTWIMMER ROBERT DR ,  REBSDAT SIEGFRIED DR ,  SCHUIERER ERICH DR

IPC: C07D263/16 ,  C07D85/36

公开(公告)号：CS326283A2

公开(公告)日：1985-06-13

申请号：CS326283

申请日：1983-05-10

Applicant: HOECHST AG

Inventor： REBSDAT SIEGFRIED DR ,  MAYER SIGMUND ,  ALFRANSEDER JOSEF

IPC: B01J23/50 ,  C07D301/10

公开(公告)号：DE3229541A1

公开(公告)日：1984-02-09

申请号：DE3229541

申请日：1982-08-07

Applicant: HOECHST AG

Inventor： REBSDAT SIEGFRIED DR ,  MAYER SIGMUND ,  ALFRANSEDER JOSEF

IPC: B01J23/66 ,  B01J23/96 ,  B01J38/48 ,  C07B61/00 ,  C07D301/10

Abstract: A method for improving the activity of a used supported silver catalyst, used for the manufacture of ethylene oxide by reaction of ethylene with oxygen or air, which method consists essentially of: (a) impregnating said used catalyst at a temperature from 80 DEG C. to 150 DEG C. and for 0.75 hour to 10 hours with an impregnating solution containing water, a water-miscible organic solvent selected from the group consisting of methanol, ethanol, propanol, and isopropanol, at least one compound of cesium, rubidium, or of cesium and rubidium in an amount providing from 50 mg to 1000 mg per kilogram of solution, said solution containing from 5 to 50 percent by weight of water; (b) separating the impregnated catalyst from excess impregnating solution; and (c) drying the impregnated catalyst.

公开(公告)号：DE2860843D1

公开(公告)日：1981-10-22

申请号：DE2860843

申请日：1978-08-28

Applicant: HOECHST AG

Inventor： REBSDAT SIEGFRIED DR ,  MAYER SIGMUND ,  ALFRANSEDER JOSEF ,  RIEDL JOSEF DR

IPC: B01J23/96 ,  B01J38/48 ,  C07B61/00 ,  C07D301/10 ,  C07D303/04

Abstract: The activity of supported silver catalysts, which have been used for the direct oxidation of ethylene to ethylene oxide with molecular oxygen or air and to which from 1 to 1,000 parts, per 1 million parts of catalyst, of cesium and/or rubidium have been applied, is improved by washing the catalyst with an inert liquid prior to the application of cesium and/or rubidium.

公开(公告)号：DE2519599C2

公开(公告)日：1977-02-17

申请号：DE2519599

申请日：1975-05-02

Applicant: HOECHST AG

Inventor： REBSDAT SIEGFRIED DR ,  MAYER SIEGMUND ,  ALFRANSEDER JOSEF

IPC: B01J23/50 ,  B01J23/96 ,  C07D301/10

公开(公告)号：DE1795261A1

公开(公告)日：1972-02-10

申请号：DE1795261

申请日：1968-08-30

Applicant: HOECHST AG

Inventor： HAHN HELMUT DR ,  REBSDAT SIEGFRIED DR ,  RUCHLAK KASIMIR DR ,  SCHUIERER ERICH DR

IPC: C08G18/62 ,  C08G18/80 ,  D06M15/576 ,  C08F7/02

Abstract: Polymers of the formula IN WHICH Rf is perfluoroalkyl of six to 12 carbon atoms, n is an integer of 1 to 4, m is 0 or 1 and x is a number of about 10 to about 300, are useful as water- and oil-repellent agents for fibrous materials, especially materials consisting of or containing cotton or wool. The agents are used in aqueous dispersions or solutions in organic solvents.