1.
    发明专利
    未知

    公开(公告)号:DE3044640A1

    公开(公告)日:1982-07-08

    申请号:DE3044640

    申请日:1980-11-27

    Applicant: BASF AG

    Abstract: Inhalation apparatus for test animals for investigating the biological effect of substances mixed with respiratory air. It comprises a distributor chamber which is connected to a respiratory air preparation unit and has several openings, animal tubes connected to the openings and suction devices, connected to a disposal system, for removing the waste air. Each transition piece between the head and trunk of the animal tubes has holes connecting the animal tubes inserted into the apparatus to the suction devices.

    2.
    发明专利
    未知

    公开(公告)号:DE3128873A1

    公开(公告)日:1983-02-10

    申请号:DE3128873

    申请日:1981-07-22

    Applicant: BASF AG

    Abstract: An apparatus for the preparation of bonding fibers, especially for the production of nonwovens by a wet-lay process, wherein a polymer dispersion, containing an anionic or nonionic dispersant, and an aqueous solution, containing a dissolved cationic precipitant, are combined to cause fiber formation from precipitated polymer particles, which apparatus includes a feed funnel spaced above the bottom of a homogenization vessel with both a nozzle for introducing the polymer dispersion and a metering device for the precipitant, which are so arranged and aimed into the funnel that in co-operation with a stirrer a vortex is produced in a column of liquid in the feed funnel, and fibers are formed and broken up while passing through a turbulence chamber, located at the bottom of the funnel, and a gap into a homogenization chamber.

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