DISC-SHAPED MAGNETIC RECORDING CARRIER

    公开(公告)号:JPS6423416A

    公开(公告)日:1989-01-26

    申请号:JP15954888

    申请日:1988-06-29

    Applicant: BASF AG

    Abstract: PURPOSE: To always impart the required amt. of a lubricant by incorporating a porous pigment having 300-1,000m /g BET specific surface area into the surface layer part of a magnetic layer by 1-10wt.% of the amt. of a magnetic material when at least one side of a nonmagnetic substrate is coated with the magnetic layer. CONSTITUTION: When at least one side of a nonmagnetic substrate is coated with a magnetic layer, this magnetic layer is made of a magnetic material finely dispersed in an org. binder and a porous pigment having 300-1,000m /g BET specific surface area is incorporated into the surface layer part of the magnetic layer by 1-10wt.%, preferably 2-6wt.% of the amt. of the magnetic material so as to reduce friction. The pigment is made of a molecular filter based on metal-aluminum silicate having a special crystal structure and the spaces in a three-dimensional network structure are formed by the reaction of aq. solns. of sodium aluminate and sodium silicate. Sticking effect is also reduced.

    BUMPER FOR AUTOMOBILE
    2.
    发明专利

    公开(公告)号:JPH04297351A

    公开(公告)日:1992-10-21

    申请号:JP17381991

    申请日:1991-07-15

    Applicant: BASF AG

    Abstract: PURPOSE: To provide an automobile bumper which is simple in structure and ease of manufacture, needs little material for a shock absorbing member, and besides, sufficient shock absorbency. CONSTITUTION: This bumper is provided with a supporting member being high in flexural rigidity, a polymer foam-make shock absorbing member with a recess being adjoined to this supporting member, and a protective piece covering this shock absorbing member, while this shock absorbing member 3 has a recess 6 extending in the working direction of main impact load, and a web 5 to be situated in the space.

    PART ABSORBING IMPACT ENERGY
    3.
    发明专利

    公开(公告)号:JPH04211735A

    公开(公告)日:1992-08-03

    申请号:JP3411391

    申请日:1991-02-28

    Applicant: BASF AG

    Abstract: PURPOSE: To provide a simple impact energy absorbing component by providing an approximately square force-displacement characteristic curve. CONSTITUTION: A notch 2 is provided in a narrow and long polymer foam block of square cross section having sides (a) and (b), and the notch extends along the entire length of the block on one side in the cross section. This notch has depth (c) and width (d), the bottom of the notch is arc, and these dimensions (a), (b), (c), (d) satisfy prescribed conditions.

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