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    STRUCTURAL MEMBER WITH BENDING HARDNESS
    1.
    发明专利
    STRUCTURAL MEMBER WITH BENDING HARDNESS 失效

    公开(公告)号：JPH04223150A

    公开(公告)日：1992-08-13

    申请号：JP7619091

    申请日：1991-04-09

    Applicant: BASF AG

    Inventor： BUERUNAA RENTSU ,  ARUFURETSUTO PIRUKAA ,  BUORUFUGANKU ZAIPU

    IPC: B32B5/18 ,  B32B3/12 ,  B32B27/00 ,  B60R19/18

    Abstract: PURPOSE: To enhance shearing strength and bending strength without increasing mass by reinforcing the flange of a main body within a area turned downwardly while receiving the load to buckling or bending by a plate or a shell and connecting a structure member comprising plastic to the flange by a spacer member. CONSTITUTION: An elongate main body 1 comprising plastic has an opened cross-sectional area contour and the edge part reinforcing part 2 on an open side part is singly or doubly bent and a flange 3 is reinforced by a thin-walled plate or shell 4 within an area turned downwardly while receiving the load to buckling or bending. The plate or shell 4 is connected to a web 6 or connected to the flange 3 of the main body 1 by a spacer member 7. The spacer member 7 is formed by the rib laterally extending with respect to the longitudinal expansion of the main body 1 or a semi-hard foamed layer or a hard foamed layer or a honeycomb-shaped material composite.

    MAGNETIC RECORDING CARRIER
    4.
    发明专利
    MAGNETIC RECORDING CARRIER 失效

    公开(公告)号：JPH01102729A

    公开(公告)日：1989-04-20

    申请号：JP22892188

    申请日：1988-09-14

    Applicant: BASF AG

    Inventor： IEENE KOFUAKUSU ,  MIRENA MERUTSUAA ,  BUERUNAA BARUTSU ,  BUERUNAA RENTSU ,  BUERUNAA ROTSUHO ,  HERUMUUTO YAKUSHIYU

    IPC: G11B5/706 ,  C09D5/23 ,  C09D7/12 ,  C09D167/00 ,  C09D177/00 ,  C09D183/04 ,  G11B5/70 ,  G11B5/702 ,  G11B5/708 ,  G11B5/71

    Abstract: PURPOSE: To improve S/N and durability by incorporating specific particulate nonmagnetic metal oxides, lubricants and a comb-shaped block copolymer as a dispersant at restricted ratios into particulate magnetic materials having a specified specific surface area. CONSTITUTION: This magnetic recording carrier contains at least one kind of the particulate nomnagnetic metal oxides having Mohs hardness larger than 5 and the specific surface area based on BET of at least 2m /g at a ratio of 1 to 20wt.% of the weight of at least one kind of particulate magnetic materials having the specific surface area based on BET of at least 25m /g, at least one kind of the lubricants selected from a group consisting of silicone resins, polyethylene wax and metal salts of paraffin, etc., at a ratio of 1 to 10wt.% and the comb-shaped block copolymer consisting of a polyethylene imine chain having a mol.wt. of at least 2000 as a base and having a polyamide and/or polyester side chain having a mol.wt. of at least 500 at a ratio of 1 to 20wt.%. As a result, the S/N and the resistivity to the wear of the layer surface are improved.

    MAGNETIC RECORDING CARRIER
    9.
    发明专利
    MAGNETIC RECORDING CARRIER 失效

    公开(公告)号：JPH02226517A

    公开(公告)日：1990-09-10

    申请号：JP32856389

    申请日：1989-12-20

    Applicant: BASF AG

    Inventor： AUGUSUTO REENAA ,  RUDORUFU ZUYUTEINGAA ,  MIHIYAERU BOBURITSUHI ,  HERUMAN DEIKOBU ,  HERUMAN RORAA ,  BUERUNAA RENTSU ,  RUUTOBUIHI KURAITONAA ,  BUERUNAA ROTSUHO ,  NORUBERUTO SHIYUNAIDAA

    IPC: C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/70 ,  G11B5/702 ,  G11B5/706

    Abstract: PURPOSE: To stabilize long-time use without deteriorating magnetic characteristics by constituting a magnetic recording carrier of a polymer binder and ferromagnetic chromium dioxide finely dispersed into customarily used additives and additionally incorporating a multiple unsatd. org. compd. monomer specified in its content into the chromium dioxide. CONSTITUTION: The magnetic recording medium is mainly composed of a nonmagnetic carrier material, the polymer binder and the intrinsically ferromagnetic chromium dioxide finely dispersed into the customarily used additives and 0.1 to 8wt.% multiple unsatd. org. compd. monomer is additionally incorporated into the chromium dioxide. The monomer is a monomer having at least three double bonds per molecule, for which one kind of the compd. selected from a group consisting of linolenic acid or oil or oil-fatty acid mixture is used. More specifically, alcohol, acid, ester, diglyceride, 2,4-hexadienic acid, herring oil, sardine oil, etc., are used as the multiple unsatd. org. compd. to accelerate dispersion.

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