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102 records (took 0.018 seconds)

    35.
    发明专利
    未知

    公开(公告)号：FI870250A0

    公开(公告)日：1987-01-21

    申请号：FI870250

    申请日：1987-01-21

    Applicant: DEGUSSA

    Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL ,  UDLUFT KLAUS

    IPC: C08B31/12 ,  D21H17/28 ,  C08B

    Abstract: A dry process for preparation of cationic starch ethers by reaction of starch with alkylidene epoxides in the presence of water in an alkaline medium at a temperature of 5 DEG to 40 DEG C. in the presence of a finely divided silica.

    36.
    发明专利
    未知

    公开(公告)号：FI870249A0

    公开(公告)日：1987-01-21

    申请号：FI870249

    申请日：1987-01-21

    Applicant: DEGUSSA

    Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL

    IPC: C08B37/00 ,  C08B37/14 ,  C08B

    Abstract: A process for the dry cationization of galactomannans by reaction with alkylidene epoxides in an alkaline medium in the presence of water at 5 DEG to 60 DEG C. and in the presence of finely divided, hydrophilic silicic acid.

    PREVENTING CONTAMINATION OF AN AQUATIC ENVIRONMENT WITH ORGANISMS FROM ANOTHER LOCALITY
    37.
    发明专利
    PREVENTING CONTAMINATION OF AN AQUATIC ENVIRONMENT WITH ORGANISMS FROM ANOTHER LOCALITY 未知

    公开(公告)号：CA2291519C

    公开(公告)日：2008-02-05

    申请号：CA2291519

    申请日：1999-12-03

    Applicant: DEGUSSA

    Inventor： WERLE PETER ,  FUCHS RAINER ,  HUSS MICHAEL

    IPC: C02F1/50 ,  A01N37/16 ,  A01N59/00 ,  A01P5/00 ,  A01P7/00 ,  C02F1/72

    Abstract: The process according to the invention prevents the transfer of harmful organisms of zooplankton, including the epifauna thereof, and of phytoplankton including the resting stages thereof, which are taken up with the ballast water of ships at one location and discharged in another. According to the invention, the organisms are substantially destroyed by the addition of an agent containing a water--soluble percarboxylic acid with 1 to 6 carbon atoms, particularly an aqueous solution containing peracetic acid and/or performic acid and hydrogen peroxide, in a quantity of 0.1 to 200 mg of percarboxylic acid per litre of ballast water, to the ballast water and allowing it to react before discharge. According to a preferred embodiment, a cyanide is added to the ballast water in addition to the percarboxylic acid.

    38.
    发明专利
    未知

    公开(公告)号：ES2217673T3

    公开(公告)日：2004-11-01

    申请号：ES99122726

    申请日：1999-11-16

    Applicant: DEGUSSA

    Inventor： FUCHS RAINER DR ,  HUSS MICHAEL ,  WERLE PETER DR

    IPC: C02F1/50 ,  C02F1/72

    Abstract: The agent contains an aqueous percarboxylic acid with 1 to 6 carbon atoms as peroxygen compound, to which ballast is added water in an amount corresponding to 0.1 to 200 mg percarboxylic acid per liter. Process for avoiding contamination of navigatable body of water with organisms selected from plankton, e.g. epifauna and photo plankton including cystenes, comprises adding reagent containing peroxygen compound to the ballast water, allowing the reagent to react until the organisms are destroyed and feeding the treated water back into the body of water.

    39.
    发明专利
    未知

    公开(公告)号：AT260869T

    公开(公告)日：2004-03-15

    申请号：AT99122726

    申请日：1999-11-16

    Applicant: DEGUSSA

    Inventor： FUCHS RAINER DR ,  HUSS MICHAEL ,  WERLE PETER DR

    IPC: C02F1/50 ,  C02F1/72

    Abstract: The agent contains an aqueous percarboxylic acid with 1 to 6 carbon atoms as peroxygen compound, to which ballast is added water in an amount corresponding to 0.1 to 200 mg percarboxylic acid per liter. Process for avoiding contamination of navigatable body of water with organisms selected from plankton, e.g. epifauna and photo plankton including cystenes, comprises adding reagent containing peroxygen compound to the ballast water, allowing the reagent to react until the organisms are destroyed and feeding the treated water back into the body of water.

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