-
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
Inventor: BUNG RICHARD DIPL ING DR , GIESBRECHT HARTMUT DIPL ING DR , LEUCKEL WOLFGANG DIPL ING DR , KLIMISCH HANS-JOACHIM DR
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.
-
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
Inventor: BUNG RICHARD DIPL ING DR , GANS KARL , SCHREYER GEROLD , WELZEL GERHARD DIPL CHEM DR
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.
-
公开(公告)号:DE3128872A1
公开(公告)日:1983-02-10
申请号:DE3128872
申请日:1981-07-22
Applicant: BASF AG
Inventor: BUNG RICHARD DIPL ING DR , GANS KARL , SCHREYER GEROLD , WELZEL GERHARD DIPL CHEM DR
Abstract: A process for the repeatable production of shaped particles of various geometries from polymer dispersions, melts or solutions, wherein first particles are expelled by means of a rotating disk and are introduced while still liquid, in a radially outward direction, into a liquid precipitant or fixant film and the particles are thereby coagulated or fixed and also given an additional structure and are transported away from the point of introduction.
-
公开(公告)号:DE3148888A1
公开(公告)日:1983-06-23
申请号:DE3148888
申请日:1981-12-10
Applicant: BASF AG
Inventor: BUNG RICHARD DIPL ING DR , LAUN MARTIN DIPL PHYS DR , SCHMIDT FRANZ DIPL CHEM DR , WELZEL GERHARD DIPL CHEM DR
Abstract: Method for transmitting shear stresses by rotary and/or translatory movements of three-dimensional surfaces moving relative to one another with shear-thickening fluids situated between them, in which both critical and subcritical shear velocity regions are adjusted simultaneously over the length of a shear gap filled with a shear-thickening fluid, fluid subjected to subcritical shear stress being continuously transported into the region containing fluid subjected to critical shear stress by the movement of the shear surfaces relative to one another.
-
公开(公告)号:DE3128871A1
公开(公告)日:1983-02-10
申请号:DE3128871
申请日:1981-07-22
Applicant: BASF AG
-
-
-
-