公开(公告)号：US3592687A

公开(公告)日：1971-07-13

申请号：US3592687D

申请日：1969-01-06

Applicant: BASF AG

Inventor： SCHNELL GEORG ,  HARTMANN JOB-WERNER ,  STRITZINGER HEINZ ,  SENKPIEL WERNER ,  HARTMANN HANS JOERG ,  SOBOTTA ERICH ALBERT ,  UHL KARL ,  WERST GERHARD

IPC: C09D5/23 ,  G11B5/702 ,  H01F10/02

CPC classification number: G11B5/702 ,  Y10T428/31692

Abstract: A METHOD OF PRODUCING MAGNETIC RECORDING MEDIA BY APPLYING TO A BASE A COATING OF A DISPERSION OF A MAGNETIC PIGMENT, PRETREATED WITH WAX OR WAX-LIKE SUBSTANCES, IN A SPECIAL CURABLE COPLYMER OF ALKENYL BENZENE HYDROCARBONS (METH)ACRYLIC ESTERS, ETHERIFIED N-METHYLAMIDES OF (METH)ACRYLIC ACID AND AN ADDITIONAL COMONOMER, DRYING AND CURING THE APPLIED COATING; AND THE MAGNETIC RECORDING MATERIAL THUS OBTAINED.

公开(公告)号：US3704152A

公开(公告)日：1972-11-28

申请号：US3704152D

申请日：1970-09-10

Applicant: BASF AG

Inventor： HARTMANN HANS JOERG ,  SCHNELL GEORG ,  WERST GERHARD ,  GROSSELFINGER HORST ,  HARTMANN JOB-WERNER ,  BIPP HANSJOERG

IPC: C09D5/23 ,  G11B5/702 ,  G11B5/71 ,  H01F10/02

CPC classification number: G11B5/71 ,  G11B5/7023 ,  Y10S428/90 ,  Y10T428/31797

Abstract: MAGNETIC RECORDING MEDIA COMPRISING A NON-MAGNETIC SUPPORT AND A MAGNETIC LAYER BASED ON A MAGNETIC PIGMENT DISPERSED IN A BINDER AND CONTAINING A SMALL AMOUNT OF A LIQUID MIXTURE OF BRANCHED FATTY ACIDS HAVING AT LEAST 95% BY WEIGHT OF C12 TO C18 FATTY ACIDS AND AT LEAST 40% BY WEIGHT OF BRANCHED C18 FATTY ACIDS.