24.
    发明专利
    未知

    公开(公告)号:DK145332B

    公开(公告)日:1982-11-01

    申请号:DK95377

    申请日:1977-03-04

    Applicant: BASF AG

    Abstract: Wood preservatives for protecting wood or wood-base materials against animal pests, and which contain a perfluoroalkane sulfonate of the formula C nF2n+1-SO3 M where n is one of the integers from 1-14 and M denotes hydrogen or a cation, and a process for protecting wood or wood-base materials against animal pests with these compounds.

    29.
    发明专利
    未知

    公开(公告)号:BR8001494A

    公开(公告)日:1980-11-11

    申请号:BR8001494

    申请日:1980-03-13

    Applicant: BASF AG

    Abstract: A crystalline SiO2-modification, which is characterized by an X-ray diffraction diagram having certain diffraction lines, and a process for the preparation of this crystalline SiO2-modification by crystallizing reactive amorphous SiO2under hydrothermal conditions in the presence of hexamethylenediamine. Sodium ions, phosphate ions and/or sulfate ions may be added for the crystallization.

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