公开(公告)号：JPS56127931A

公开(公告)日：1981-10-07

申请号：JP1761981

申请日：1981-02-10

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  HAINRIHI HARUTOMAN ,  RUUDORUFU BAHAMAN ,  BUERUNAA BARUTSU ,  ARUBAATO KOORU

IPC: C08G18/08 ,  C08G18/83 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702 ,  G11B5/842

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.

公开(公告)号：JPS6199928A

公开(公告)日：1986-05-19

申请号：JP22202085

申请日：1985-10-07

Applicant: Basf Ag

Inventor： ARUBERUTO KOORU ,  MIRENA MERUTSUAA ,  AUGUSUTO REENAA ,  NORUBERUTO SHIYUNAIDAA ,  EEBAAHARUTO KESUTAA ,  BUERUNAA BARUTSU ,  FURIIDORIHI ZOMAAMAN ,  ERUNSUTO RIKAA

IPC: G11B5/702 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D163/00 ,  C09D167/00 ,  C09D171/00 ,  C09D171/12 ,  C09D175/00 ,  C09D175/04 ,  C10M105/58 ,  C10N40/18 ,  G11B5/708 ,  G11B5/71

CPC classification number: G11B5/71 ,  Y10S428/90 ,  Y10T428/31504 ,  Y10T428/31935

公开(公告)号：JPS6182332A

公开(公告)日：1986-04-25

申请号：JP16218985

申请日：1985-07-24

Applicant: Basf Ag

Inventor： AUGUSUTO REENAA ,  BUERUNAA BARUTSU ,  BUERUNAA RENTSU ,  ARUBERUTO KOORU ,  GIYUNTAA HAIRU

IPC: C09D5/23 ,  C09D175/04 ,  C09D175/06 ,  C09D175/08 ,  C09D175/14 ,  G11B5/702 ,  G11B5/842

CPC classification number: G11B5/702

公开(公告)号：JPS60160024A

公开(公告)日：1985-08-21

申请号：JP27354884

申请日：1984-12-26

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  ARUBERUTO KOORU ,  BUERUNAA BARUTSU ,  FURIIDORIHI ZOMAAMAN ,  MIRAN FUERIKU ,  BUERUNAA GURAU ,  RAINHORUTO BAURU

IPC: C09D5/23 ,  C09D7/12 ,  C10M105/24 ,  C10N10/04 ,  C10N40/18 ,  G11B5/71

公开(公告)号：JPS60127522A

公开(公告)日：1985-07-08

申请号：JP24092184

申请日：1984-11-16

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  HERUMUUTO KOPUKE ,  HERUMAN RORAA ,  BUERUNAA BARUTSU ,  BUERUNAA GURAU ,  EEBAAHARUTO KESUTAA ,  FURIIDORIHI ZOMAAMAN

IPC: C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/02 ,  C09D175/04 ,  G11B5/702 ,  H01F10/10

公开(公告)号：JPS60124022A

公开(公告)日：1985-07-02

申请号：JP24092084

申请日：1984-11-16

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  BUERUNAA BARUTSU ,  MIRAN FUERIKU ,  HERUMUUTO KOPUKE ,  BUERUNAA GURAU ,  RAINHORUTO BAURU

IPC: C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  C09D175/06 ,  G11B5/702 ,  H01F10/10

公开(公告)号：JPS6087427A

公开(公告)日：1985-05-17

申请号：JP18083584

申请日：1984-08-31

Applicant: BASF AG

Inventor： GIYUNTAA HAIRU ,  BUERUNAA RENTSU ,  IEENE KOFUAKUSU ,  BUERUNAA GURAU ,  BUERUNAA BARUTSU

IPC: C08F2/54 ,  C08G18/67 ,  C09D5/23 ,  C09D163/00 ,  C09D175/04 ,  C09D175/14 ,  G11B5/702

公开(公告)号：JPS6066329A

公开(公告)日：1985-04-16

申请号：JP13923284

申请日：1984-07-06

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  YOOAHIMU HATSUKU ,  KARURU KURUTSUKAA ,  BUERUNAA BARUTSU ,  KARURU HAINTSU REEMAA ,  PEETAA RUDORUFU ,  ROORANTO FUARUKU ,  GIYUNTAA ETSUKERUTO

IPC: G11B5/845 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702 ,  G11B5/842

公开(公告)号：JPS5868230A

公开(公告)日：1983-04-23

申请号：JP15973182

申请日：1982-09-16

Applicant: BASF AG

Inventor： RUDORUFU BAHAMAN ,  BUERUNAA BARUTSU ,  BUERUNAA GURAU ,  BUINFURIITO GUTAAMAN ,  IENEE KOFUAKUSU ,  KAARU KURUTSUKAA ,  PEETAA RUDORUFU ,  DEIITAA SHIEEFUAA ,  YOAHIMU HATSUKU

IPC: C09D5/23 ,  C09D137/00 ,  G11B5/70 ,  G11B5/702