公开(公告)号：JPH04298818A

公开(公告)日：1992-10-22

申请号：JP32871091

申请日：1991-12-12

Applicant: BASF MAGNETICS GMBH

Inventor： UBUE KEPERAA ,  HERUMAN DEIKOU ,  HERUMUUTO AUBUETAA ,  MIHIYAERU BOBURITSUHI ,  YOTSUHEN RUDORUFU ,  GUREGOORU BUROTSUTO ,  ARUBERUTO KOORU ,  BUERUNAA RENTSU ,  RUDORUFU ZUYUTEINGAA

IPC: C08G18/65 ,  C08G18/08 ,  C08G18/12 ,  C09D5/00 ,  C09D5/23 ,  C09D175/04 ,  G11B5/02 ,  G11B5/702

Abstract: PURPOSE: To provide a novel thermoplastic elastic polyurethane resin which is easily soluble in ether and ketones and has excellent dispersion performance and imparts high mechanical stability and excellent electromagnetic conversion characteristics to a magnetic recording medium produced by using the same. CONSTITUTION: This magnetic recording medium is formed by using the binder contg. >=50wt.% the thermoplastic elastic polymethane resin consisting of the following components: A) 1mol polydiol having a mol.wt. of 400 to 4,000, B) 0.3 to 10mol mixture composed of the following: B1) >=1 kinds of 2 to 18C diols and B2) diol having one or more pieces of sulfonate groups, C) 0.01 to 1mol 3 to 25C triol or polyol, D) 1.3 to 13mol >=1 kinds of 6 to 30C dissocyanate and E) 0.09 to 2mol 2 to 26C aminoalcohol. The ratios of the OH groups of the components A) to C): the NCO groups of the component D): the amino groups of the component E) are 1:1.03 to 1.3:0.03 to 0.3.

公开(公告)号：JPH04271077A

公开(公告)日：1992-09-28

申请号：JP27440891

申请日：1991-10-23

Applicant: BASF MAGNETICS GMBH

Inventor： KURAUSU SHIETORE ,  YOOAHIMU EEBAAHARUTO ,  KURUTO SHIYUMITSUTSU ,  GERARUTOOBUORUFUGANGU BORUKU

IPC: G11B23/087

Abstract: PURPOSE: To reproduce the outside envelope contour of a casing section made higher by providing respective projecting parts at the casing section. CONSTITUTION: Concerning the casing half of a compact cassette K1, casing sections 45 and 46, of which the inside is made flat, extended into the range of higher casing sections 10a and 10b respectively have the projecting parts formed as rib sections 47 outside. The rib section 47 is composed of a short rib 48 and U-shaped, for example, ribs 49a and 49b longer than the section of a tape recorder existent inside the range of an opening 50 for positioning. The front side plane of a front wall 6 is extended by full face extension parts 51a and 51b within this range so as to reach the standard height of higher casing sections of the compact cassette.

公开(公告)号：JPH04247322A

公开(公告)日：1992-09-03

申请号：JP25893991

申请日：1991-10-07

Applicant: BASF MAGNETICS GMBH

Inventor： RONARUDO JIYON BUAICHI ,  GEERUHARUTO SHIEERINGU ,  HERUMUUTO YAKUSHIYU ,  FUORUKAA KOTSUHO

IPC: G11B5/845

Abstract: PURPOSE: To provide a magnetic recording medium which has sufficient sensitivity to high-density information recording when the magnetically anisotropic particles of the recording medium is subjected to probabilistic orientation and to provide the recording medium which is easily and rapidly adaptive to various kinds of processing parameters with respect to the used dispersion and the mode of coating. CONSTITUTION: Many magnets are arranged on the peripheral surface 6 of a magnetic drum 3 in such a manner that their polarities are alternated. The magnetic fields of these magnets are acted on the dispersion 2 by rotating the magnetic drum 3.

公开(公告)号：JPH04213542A

公开(公告)日：1992-08-04

申请号：JP3345591

申请日：1991-02-04

Applicant: BASF MAGNETICS GMBH

Inventor： YOHAN BAARUFUYUSAA ,  ROTAARU RANGAA ,  FURANKU MANABERUKU ,  RAINHORUTO NENTOBITSUHI

IPC: B65H20/10 ,  B65H23/24 ,  G03G15/00

Abstract: PURPOSE: To generate a difference in pressure between an upper side and a lower side of a web made of a web material, for example, a photographic film or paper or magnetic tape in a region of a pair of rollers of a hollow suction means. CONSTITUTION: Respective wedges for air-tightness are arranged in a free space 10 between rollers 2 and 3 on both sides on the outside from outer fringes of the rollers so that they pass below a fringe of a part 5 in which a web floats, and a shape of a cross section of the wedge for air-tightness copies an indicated surface of the roller and is at a short distance from a support face of the roller. In a preferable embodiment, the wedge for air-tightness is hollowed like a tank and is extended by leaving and lowering in the direction of the center of the web and crossing the direction of travel.

公开(公告)号：JPH09216928A

公开(公告)日：1997-08-19

申请号：JP29093196

申请日：1996-10-31

Applicant: BASF MAGNETICS GMBH

Inventor： TOOMASU BUYUNSHIYU ,  RIA KURESU ,  BUERUNAA ROTSUHO ,  AUGUSUTO REENAA ,  ARUBERUTO KOORU ,  NORUBERUTO SHIYUNAIDAA ,  UBUE BURUKUHARUTO

IPC: C08K3/08 ,  C08G18/10 ,  C08G18/32 ,  C08G18/38 ,  C08G18/64 ,  C08G18/72 ,  C08K3/22 ,  C08L75/00 ,  C08L75/04 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

公开(公告)号：JPH08333435A

公开(公告)日：1996-12-17

申请号：JP10980596

申请日：1996-04-30

Applicant: BASF MAGNETICS GMBH

Inventor： BRODT GREGOR ,  SCHELBLE JOSEF ,  LEHNER AUGUST ,  WEINGART FRANZ ,  KOHL ALBERT ,  KRESS RIA ,  SCHNEIDER NORBERT

IPC: C08L75/04 ,  C08G18/10 ,  C08G18/62 ,  C08G18/65 ,  C08G18/83 ,  C08L75/00 ,  C08L101/00 ,  C08L101/12 ,  C09D5/23 ,  G11B5/702 ,  G11B5/73 ,  G11B5/704

公开(公告)号：JPH08239221A

公开(公告)日：1996-09-17

申请号：JP32719495

申请日：1995-12-15

Applicant: BASF MAGNETICS GMBH

Inventor： ETSUKEHARUTO SHIYUBUAPU ,  BUIRUMA EMU DAUSHIYU ,  GIYUNTAA HAIRU ,  HERUMUUTO SHIYUTAININGAA ,  RAINHARUTO KERUNAA

IPC: C01G45/00 ,  H01M4/48 ,  H01M4/485 ,  H01M4/50 ,  H01M4/505 ,  H01M4/02 ,  H01M4/58 ,  H01M10/40

公开(公告)号：JPH08230971A

公开(公告)日：1996-09-10

申请号：JP30555195

申请日：1995-11-24

Applicant: BASF MAGNETICS GMBH

Inventor： GOTOFURIITO RUTSU ,  AUGUSUTO RIIPORUTO ,  REJINA FUITSUSHIYAA ,  HARUTOMUUTO TEIIRE ,  RUUTOBUIHI TSUERONI ,  DEIITOMARU HIYUUPUNAA

IPC: B65D85/672 ,  B65H75/14 ,  B65H75/22 ,  G11B23/027

Abstract: PROBLEM TO BE SOLVED: To simplify a method for connecting a support for an annular body such as a roll shape magnetic tape and a stacked annular body. SOLUTION: This relates to a stacked annular body 40, especially a support for a wound tape, and the same is practically a hollow cylinder provided with holding bodies 7A, 7B comprising flanges 9A, 9B and cylindrical mounting members 10A, 10B at each end of the hollow cylinder 6 at least at two parts. At least one of the holding bodies can be connected to the hollow cylinder 6 freely detachable. Each holding body 7A, 7B is provided with hooks 11A, 11B, and between the hooks, at least one tensile member 8 is provided for connecting the detachable holding bodies 7A, 7B and the hollow cylinder 6.

公开(公告)号：JPH08227524A

公开(公告)日：1996-09-03

申请号：JP32029595

申请日：1995-12-08

Applicant: BASF MAGNETICS GMBH

Inventor： MISHIERU MUNHI ,  INGO BURAURU ,  PEETAA NAAGERU

IPC: B05C5/02 ,  B05C9/06 ,  B29C47/00 ,  G11B5/848

Abstract: PROBLEM TO BE SOLVED: To form a layer of 1μm thick or less by disposing a rectangular prism magnet such that lines of magnetic force pass through a block having upper surface extending in parallel with the outlet opening of a molding slit substantially perpendicularly to the flowing direction of magnetic dispersion liquid. SOLUTION: A nonmagnetic carrying layer 4 runs in the direction of arrow in the vicinity of outlet opening 7 of an extrusion molder having upper and lower blocks 3, 1, and a molding slit 2 made between. At the outlet opening, a magnetic dispersion liquid is squeezed, under pressure, from a storage container onto the carrying layer through the slit. A rectangular prism magnet 8 is disposed having field strength at least equal to the coercive force of fine magnetic powder flowing through the molding slit 2 in parallel with the upper plane 12 of lower block 1 while spaced apart by about 2 mm from the lower half part. The magnet is polarized such that the lines of magnetic force pass substantially perpendicularly to the magnetic layer forming direction of magnetic dispersion liquid.

公开(公告)号：JPH0855711A

公开(公告)日：1996-02-27

申请号：JP15955395

申请日：1995-06-26

Applicant: BASF MAGNETICS GMBH

Inventor： ETSUKEHARUTO SHIYUBUAPU ,  YOOAHIMU ZUIMON ,  URURIHI MIYURAA ,  PEETAA POGANIUHI ,  KURAUDEIUSU KORUMAN

IPC: C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  G11B5/73 ,  G11B5/738 ,  H01F1/00 ,  H01F1/047 ,  H01F1/44

Abstract: PURPOSE: To easily disperse and simultaneously easily orient ferromagnetic powder by packing the ferromagnetic powder into the pore spaces of porous and non-magnetic mineral skeleton materials having the pore spaces dug in parallel or almost in parallel. CONSTITUTION: An inorganic skeleton materials are formed of crystal isopoly or heteoisopoly oxide, carbide, nitride, or oxide having plural pore spaces. The pore spaces of the mineral skeleton materials are arranged in parallel or almost in parallel, preferentially, like a symmetrical hexagonal honeycomb structure. Then, ferromagnetic partitles such as chrome dioxide and ferrite are packed into the pore spaces of the mineral skeleton materials. Thus, the ferromagnetic particles can be easily dispersed and easily oriented.