公开(公告)号：JPS57124346A

公开(公告)日：1982-08-03

申请号：JP19873981

申请日：1981-12-11

Applicant: Basf Ag

Inventor： AUGUSUTO REENAA ,  HAINTSU URURIHI BUERUTAA ,  DEIITAA NEEGERE ,  BUERUNAA RENTSU ,  MON YON YUN ,  HORUSUTO RAIMAN ,  ARUBUREHITO EKERU

IPC: C08G18/60 ,  C08G18/67 ,  G03F7/037

CPC classification number: G03F7/037 ,  C08G18/603 ,  C08G18/67 ,  C08G18/6705 ,  Y10S430/107 ,  C08G18/0814

公开(公告)号：JPS57124345A

公开(公告)日：1982-08-03

申请号：JP19873881

申请日：1981-12-11

Applicant: Basf Ag

Inventor： AUGUSUTO REENAA ,  MON YON YUN ,  BUERUNAA RENTSU ,  PEETAA RIHITAA ,  AKUSERU ZANAA ,  GUNAARU SHIYORUNIKU ,  HAINTSU URURIHI BUERUTAA ,  ARUBUREHITO EKERU

IPC: G03F7/035 ,  C08G18/67 ,  G03F7/032

CPC classification number: G03F7/032 ,  C08G18/67 ,  C08G18/6705 ,  C08G18/0814

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：JPH0628104B2

公开(公告)日：1994-04-13

申请号：JP27354984

申请日：1984-12-26

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  ARUBERUTO KOORU ,  HERUMAN RORAA ,  UERUNAA BARUTSU ,  EEBAAHARUTO KESUTAA ,  FURIIDORIHI ZOMAAMAN

IPC: C09D5/23 ,  C09D7/12 ,  C10M105/24 ,  C10M105/68 ,  C10N10/04 ,  C10N40/18 ,  G11B5/71

公开(公告)号：JPH02223012A

公开(公告)日：1990-09-05

申请号：JP32856289

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 ,  C09D129/04 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  G11B5/706

Abstract: PURPOSE: To exhibit excellent stability to the deterioration of magnetic characteristics by forming a magnetic recording carrier of a nonmagnetic carrying material, polymer binder and magnetic material consisting of chromium dioxide as chief materials and forming a specific magnetizable layer on the carrying material. CONSTITUTION: This magnetic recording carrier is formed of the nonmagnetic carrying material, the polymer binder and the magnetic material consisting of the chromium dioxide as the chief materials and the magnetizable layer adhered on the carrying material. One kind of the org. compds. selected from a group consisting of steric hindrance phenol, cresol, arom. amine, benztriazole, triazine deriv., phosphorus-contg. acid ester, phenolic phosphate, its metal salt, benzophenone, substd. phenyl ester benzoate and thioacid alkyl ester are additionally incorporated into the magnetizable layer at 0.1 to 8wt.% of the weight of the chromium dioxide. As a result, the magnetic recording carrier exhibits the improved stability to the chemical decomposition by moisture and oxidative compds. without entailing the deterioration of the magnetic characteristics.

公开(公告)号：JPS63228413A

公开(公告)日：1988-09-22

申请号：JP4994288

申请日：1988-03-04

Applicant: BASF AG

Inventor： AUGUSUTO REENAA ,  ARUBERUTO KOORU ,  MIHIYAERU BOBURITSUHI ,  HERUMAN RORAA ,  PEETAA RIHITAA ,  BUERUNAA RENTSU ,  RUUTOBUIHI KURAITONAA ,  PEETAA RUDORUFU

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

公开(公告)号：JPS6177141A

公开(公告)日：1986-04-19

申请号：JP19006185

申请日：1985-08-30

Applicant: Basf Ag

Inventor： HERUMAN RORAA ,  YOOAHIMU HAKE ,  UBUE BUOBUERIISU ,  AUGUSUTO REENAA ,  BUERUNAA GURAU ,  PEETAA NAAGERU ,  RORANTO FUARUKU

IPC: C08J7/04 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  C10M105/56 ,  C10N40/18 ,  C10N70/00 ,  G11B5/702 ,  G11B5/842

CPC classification number: G11B5/7021 ,  Y10S428/90 ,  Y10T428/31609

公开(公告)号：JPS5930236A

公开(公告)日：1984-02-17

申请号：JP13113583

申请日：1983-07-20

Applicant: Basf Ag

Inventor： AUGUSUTO REENAA ,  BUERUNAA BARUTSU ,  BUERUNAA RENTSU ,  HERUMUUTO KOPUKE ,  RUDORUFU BAHAMAN ,  MIRAN FUERIKU ,  MIRENA MERUTSUAA ,  HAINRIHI HARUTOMAN ,  RAINHORUTO BAURU

IPC: C08G18/10 ,  C08G18/12 ,  C08G18/65 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

CPC classification number: G11B5/7021 ,  C08G18/10 ,  Y10S428/90 ,  Y10T428/31609 ,  C08G18/3275

公开(公告)号：JPS5840546A

公开(公告)日：1983-03-09

申请号：JP13642082

申请日：1982-08-06

Applicant: BASF AG

Inventor： GUNAA SHIYORUNITSUKU ,  MONNYON YUN ,  AKUSERU ZANERU ,  AUGUSUTO REENAA ,  BUERUNAA RENTSU ,  PEETAA RIHITAA ,  ARUBUREHITO ETSUKERU

IPC: G03F7/035 ,  C08F299/06 ,  C08G18/66 ,  C08G18/67 ,  G03F7/027 ,  G03F7/032 ,  G03F7/26

公开(公告)号：JPH03171425A

公开(公告)日：1991-07-24

申请号：JP22851690

申请日：1990-08-31

Applicant: BASF AG

Inventor： FURIIDORIHI ZOMAAMAN ,  NORUBERUTO SHIYUNAIDAA ,  GERUTO EERUHARUTO ,  RUUTOBUIHI KURAITONAA ,  BUERUNAA GURAU ,  AUGUSUTO REENAA ,  HANSU RAIHIERUTO

IPC: G11B5/842

Abstract: PURPOSE: To make it possible to obtain a dispersion which is excellent in a dispersion treatment by preparing this dispersion by stirring spherical frictional grinding media having a sp. gr. smaller than the sp. gr. of a magnetic material at a specific number of revolutions in a cylindrical hermetic frictional grinding vessel of a specific size. CONSTITUTION: This dispersion is prepd. by stirring the spherical frictional grinding media, which have the ratio of a length to diameter of 1.3 to 2.5:1, have the sp. gr. smaller than the sp. gr. of the magnetic material and have a diameter from 0.5 to 3mm in the cylindrical hermetic frictional grinding vessel loaded with these media by an anchor mixer or spiral mixer at 50 to 1000R.P.M. As a result, the magnetic material is treated extremely gently treated without damaging the acicular crystals in the shortest possible dispersion treatment time, by which the homogeneous and stable dispersion is obtd.