公开(公告)号：JP2001335687A

公开(公告)日：2001-12-04

申请号：JP2001032276

申请日：2001-02-08

Applicant: EMTEC MAGNETICS GMBH

Inventor： HEES ULRIKE ,  RAETHER BENEDIKT ,  KOHL ALBERT ,  KRESS RIA ,  BLUM RAINER

IPC: G11B5/706 ,  C08G18/08 ,  C08G18/12 ,  C08G18/32 ,  C08G18/38 ,  C08G18/40 ,  C08L75/04 ,  C09D5/23 ,  C09D175/04 ,  G11B5/702 ,  G11B5/842

Abstract: PROBLEM TO BE SOLVED: To provide a binder composition for magnetic recording media having excellent dispersibility, being as anhydrous as possible, and easy to control the physical properties of the recording media by a specific chemical modification, and to provide such a magnetic recording medium itself. SOLUTION: This binder composition comprises polyurethane and at least one magnetic pigment or magnetizable pigment, where the polyurethane has a structural unit expressed by formula (I) Or, its partial salt or its perfect salt.

公开(公告)号：JP2001316619A

公开(公告)日：2001-11-16

申请号：JP2001032259

申请日：2001-02-08

Applicant: EMTEC MAGNETICS GMBH

Inventor： HEES ULRIKE ,  RAETHER BENEDIKT ,  KOHL ALBERT ,  KRESS RIA ,  BLUM RAINER

IPC: C08K3/00 ,  C08G18/08 ,  C08G18/12 ,  C08G18/38 ,  C08G18/65 ,  C08L75/04 ,  C09D5/23 ,  C09D175/04 ,  G11B5/702 ,  G11B5/842

Abstract: PROBLEM TO BE SOLVED: To provide a binder composition for a magnetic recording medium which is easily produced, has an excellent dispersibility, is anhydrous as highly as possible, and can easily control the physical characteristics of a recording medium by a specific chemical modification and to provide a magnetic recording medium using the same. SOLUTION: This binder composition contains a polyurethane and at least one magnetic or magnetizable pigment provided the polyurethane has structural units represented by formula I.

公开(公告)号：DE10105144A1

公开(公告)日：2001-08-23

申请号：DE10105144

申请日：2001-02-06

Applicant: EMTEC MAGNETICS GMBH

Inventor： HEES ULRICKE ,  RAETHER BENEDIKT ,  KRESS RIA ,  KOHL ALBERT ,  BLUM RAINER

IPC: C08K3/00 ,  C08G18/08 ,  C08G18/12 ,  C08G18/38 ,  C08G18/65 ,  C08L75/04 ,  C09D5/23 ,  C09D175/04 ,  G11B5/702 ,  G11B5/842 ,  C08G18/63 ,  C08K7/16 ,  C09D5/14

Abstract: Binder composition contains a polyurethane with a 2-(aminoacylamido)-alkanesulfonic acid unit (I) or its salt and magnetic or magnetizable pigment(s). Binder composition contains a polyurethane with a 2-(aminoacylamido)-alkanesulfonic acid unit of formula (I) or its salt and magnetic or magnetizable pigment(s): [Image] R1>hydrogen (H) or a 1-20 carbon (C) linear or branched, (un)saturated aliphatic, 4-20 C (un)saturated, (un)substituted cycloaliphatic, or 6-40 C (un)substituted aromatic hydrocarbyl group; R2>a 1-20 C linear or branched (un)saturated aliphatic or 4-20 C cycloaliphatic or 6-18 C (un)substituted aromatic hydrocarbyl group; X1>, X2>an (un)substituted group with not less than 2 C atoms, at least one of which is attached to the polyurethane by reaction with a hydroxyl (OH), amino (NH2), substituted amino NHR3>) or thiol (SH) group; R3>a 1-44 C linear or branched, (un)saturated alkyl group, optionally with aromatic substituent(s) . Independent claims are also included for (a) the production of the binder composition by mixing the polyurethane binder with magnetic or magnetizable pigment(s); and (b) magnetic recording media containing this composition.

公开(公告)号：DE10005647A1

公开(公告)日：2001-08-16

申请号：DE10005647

申请日：2000-02-09

Applicant: EMTEC MAGNETICS GMBH

Inventor： HEES ULRIKE ,  BLUM RAINER ,  RAETHER BENEDIKT ,  KRESS RIA ,  KOHL ALBERT

IPC: G11B5/706 ,  C08G18/08 ,  C08G18/12 ,  C08G18/32 ,  C08G18/38 ,  C08G18/40 ,  C08L75/04 ,  C09D5/23 ,  C09D175/04 ,  G11B5/702 ,  G11B5/842 ,  C08K3/10

Abstract: A binder composition for a magnetic recording medium comprises at least one polyurethane having a structural unit according to the formula I or a partial or full salt thereof, and a magnetic or magnetizable pigment.

公开(公告)号：GB2306761B

公开(公告)日：1998-12-09

申请号：GB9622445

申请日：1996-10-29

Applicant: BASF MAGNETICS GMBH ,  EMTEC MAGNETICS GMBH ,  BASF AG

Inventor： KELLER HARALD ,  BRONSTERT BERND ,  STEININGER HELMUT ,  HEIL GUENTER ,  BLUM RAINER

IPC: H01M4/02 ,  H01M4/48 ,  H01M4/52 ,  H01M4/58 ,  H01M4/62

Abstract: Electrode materials suitable for electrochemical cells containing a) a polymeric binder which is composed essentially of polyisobutene having a limiting viscosity number of from 551 to 661 g/cm3 and b) a solid which is capable of reversibly taking up or releasing lithium ions in an electrochemical reaction.