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    MATERIAL SUITABLE FOR COMPOSITION OF CROSS-LINKABLE BONDING AGENT
    1.
    发明专利
    MATERIAL SUITABLE FOR COMPOSITION OF CROSS-LINKABLE BONDING AGENT 失效

    公开(公告)号：JPH0850717A

    公开(公告)日：1996-02-20

    申请号：JP356695

    申请日：1995-01-12

    Applicant: BASF MAGNETICS GMBH

    Inventor： WUENSCH THOMAS ,  BRODT GREGOR ,  KRESS RIA ,  SCHNEIDER NORBERT ,  KOHL ALBERT ,  LEHNER AUGUST ,  BALZ WERNER

    IPC: C08G18/12 ,  C08G18/61 ,  C08G18/65 ,  C08G18/66 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

    Abstract: PURPOSE: To provide a coupling agent having improved mechanical characteristics, such as, limit strength, hardness, wear resistance and elasticity, and exhibiting a high crosslinking speed, by causing the coupling agent to contain polyurethane made of predetermined components and a material having a specified molecular weight. CONSTITUTION: Polyurethane contains 1mol of diol having an average molecular weight of 400-4000, 0.3-9mol of aliphatic compound having 2-18 carbon atoms, 0.3-9mol of aromatic diol having 8-30 carbon atoms, and 0.01-1mol of trivalent alcohol having 3-8 carbon atoms. The polyurethane further contains 0.01-1mol of multivalent alcohol having 3-14 carbon atoms and tertiary amino group, and diisocyanate having 6-30 carbon atoms with a molar ratio of isocyanate group to all hydroxyl groups being 1.05:1-1.4:1. This polyurethane and a predetermined compound are caused to react under specified conditions to provide a material having an average molecular weight of 4000-30000, thereby forming a magnetic recording medium.

    PROCESS FOR RECOVERING RAW MATERIALS FROM MAGNETIC RECORDING CARRIERS
    2.
    发明申请
    PROCESS FOR RECOVERING RAW MATERIALS FROM MAGNETIC RECORDING CARRIERS 审中-公开
    从磁记录载体回收原材料的方法

    公开(公告)号：WO9524443A3

    公开(公告)日：1995-11-16

    申请号：PCT/EP9500695

    申请日：1995-02-25

    Applicant: BASF MAGNETICS GMBH ,  WUENSCH THOMAS ,  SARTOR KARL HEINZ ,  SCHULZE AXEL RUEDIGER ,  MUELLER NORBERT ,  EICHER JOCHEN ,  STEPHAN OSKAR

    Inventor： WUENSCH THOMAS ,  SARTOR KARL-HEINZ ,  SCHULZE AXEL-RUEDIGER ,  MUELLER NORBERT ,  EICHER JOCHEN ,  STEPHAN OSKAR

    IPC: B29B17/02 ,  B29B17/04 ,  C08J11/06 ,  C08J11/08

    CPC classification number: B29B17/02 ,  B29B2017/0293 ,  B29K2067/00 ,  B29K2075/00 ,  B29K2705/00 ,  B29L2007/00 ,  C08J11/06 ,  C08J11/08 ,  Y02W30/622 ,  Y02W30/701

    Abstract: PCT No. PCT/EP95/00695 Sec. 371 Date Sep. 9, 1996 Sec. 102(e) Date Sep. 9, 1996 PCT Filed Feb. 25, 1995 PCT Pub. No. WO95/24443 PCT Pub. Date Sep. 14, 1995Magnetic powder and substrate material are separately recovered from finely chopped wastes of magnetic recording media consisting of a polymeric substrate and a magnetic layer present thereon in which finely divided magnetic powder is dispersed in crosslinked or uncrosslinked polymeric binder by treating the finely chopped wastes of magnetic recording media in a solution consisting of the potassium salt of a polyunsaturated fatty acid, or a biodegradable cleaning agent comprising phosphates, surfactants and a complexing agent, and one or more organic solvents or water while being subjected to mechanical action, and separately removing the magnetic powder from the substrate material by washing or sedimentation or in a magnetic separator.

    Abstract translation: PCT No.PCT / EP95 / 00695 Sec。 371日期1996年9月9日 102（e）日期1996年9月9日PCT 1995年2月25日提交PCT公布。 WO95 / 24443 PCT出版物 日期1995年9月14日磁粉和基片材料分别从精细切碎的由聚合物基底和磁性层组成的磁记录介质的废物中回收，其中细分磁性粉末分散在交联或未交联的聚合物粘合剂中， 在由多不饱和脂肪酸的钾盐组成的溶液或包含磷酸盐，表面活性剂和络合剂的生物可降解清洁剂以及一种或多种有机溶剂或水的机械作用下，将磁性记录介质的切碎的废物，以及 通过洗涤或沉降或磁选机分别从基底材料中除去磁粉。

    Materials suitable as crosslinkable binder components
    3.
    发明专利
    Materials suitable as crosslinkable binder components 未知

    公开(公告)号：GB2286192A

    公开(公告)日：1995-08-09

    申请号：GB9500515

    申请日：1995-01-11

    Applicant: BASF MAGNETICS GMBH

    Inventor： BRODT GREGOR ,  WUENSCH THOMAS ,  LEHNER AUGUST ,  KOHL ALBERT

    IPC: C08G18/12 ,  C08G18/65 ,  C09D5/23 ,  G11B5/702 ,  C08G18/66

    Abstract: A material (I) suitable as crosslinkable binder component for pigment-containing coatings and having an average molecular weight of from 25,000 to 150,000 is obtainable by reacting (1) a polyurethane (II) comprising a) 1 mol of a diol (III) having an average molecular weight of from 400 to 4,000, b) from 0.1 to 10 mol of an aliphatic or cycloaliphatic diol (IV) of 2 to 18 carbon atoms, c) from 0.01 to 10 mol of an aromatic diol (V) of 8 to 36 carbon atoms, d) from 0.01 to 2 mol of a trihydric or polyhydric alcohol (VI) of 3 to 18 carbon atoms, e) from 0.01 to 8 mol of a polyhydric alcohol (VII) of 3 to 40 carbon atoms which contains a tertiary amino group and f) an amount of a diisocyanate (VIII) of 6 to 34 carbon atoms such that the molar ratio of isocyanate groups to the total number of hydroxyl groups in (III) to (VII) is from 1.05:1 to 1.4:1, with (2) a compound (IX) which contains one or more hydroxyl groups and one or more amino groups reactive towards isocyanate groups, the amount of (IX) being such that the number of reactive amino groups corresponds to the number of isocyanate groups in the polyurethane (II). The materials may be used as crosslinkable binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.

    4.
    发明专利
    未知

    公开(公告)号：FR2714909A1

    公开(公告)日：1995-07-13

    申请号：FR9500186

    申请日：1995-01-10

    Applicant: BASF MAGNETICS GMBH

    Inventor： WUENSCH THOMAS ,  BRODT GREGOR ,  KRESS RIA ,  SCHNEIDER NORBERT ,  KOHL ALBERT ,  LEHNER AUGUST ,  BALZ WERNER

    IPC: C08G18/12 ,  C08G18/61 ,  C08G18/65 ,  C08G18/66 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  C08G18/32

    Abstract: Preparation of materials (I) having an average molecular weight from 4000 to 30,000, obtainable by reacting 1) a polyurethane (II) comprising a) 1 mol of a diol (III) having an average molecular weight of from 400 to 4000, b) from 0.3 to 9 mol of an aliphatic or cycloaliphatic diol (IV) of 2 to 18 carbon atoms, c) from 0.3 to 9 mol of an aromatic diol (V) of 8 to 30 carbon atoms, d) from 0.01 to 1 mol of a trihydric alcohol (VI) of 3 to 18 carbon atoms, e) from 0.001 to 1 mol of a polyhydric alcohol (VII) of 3 to 14 carbon atoms which contains a tertiary amino group and f) an amount of a diisocyanate (VIII) of 6 to 30 carbon atoms such that the molar ratio of the isocyanate groups to the total number of hydroxyl groups in (III) to (VII) is from 1.05:1 to 1.4:1 with 2) a compound (IX) which contains one or more hydroxyl groups and one or more amino groups reactive toward isocyanate groups, the amount of (IX) being such that the number of reactive amino groups corresponds to the number of isocyanate groups in the polyurethane (II). The materials may be used as crosslinkable binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.

    Process for recovering raw materials from magnetic recording carriers
    8.
    发明专利
    Process for recovering raw materials from magnetic recording carriers 未知

    公开(公告)号：AU1947095A

    公开(公告)日：1995-09-25

    申请号：AU1947095

    申请日：1995-02-25

    Applicant: BASF MAGNETICS GMBH

    Inventor： WUENSCH THOMAS ,  SARTOR KARL-HEINZ ,  SCHULZE AXEL-RUEDIGER ,  MUELLER NORBERT ,  EICHER JOCHEN ,  STEPHAN OSKAR

    IPC: B29B17/02 ,  B29B17/04 ,  C08J11/06 ,  C08J11/08

    Abstract: PCT No. PCT/EP95/00695 Sec. 371 Date Sep. 9, 1996 Sec. 102(e) Date Sep. 9, 1996 PCT Filed Feb. 25, 1995 PCT Pub. No. WO95/24443 PCT Pub. Date Sep. 14, 1995Magnetic powder and substrate material are separately recovered from finely chopped wastes of magnetic recording media consisting of a polymeric substrate and a magnetic layer present thereon in which finely divided magnetic powder is dispersed in crosslinked or uncrosslinked polymeric binder by treating the finely chopped wastes of magnetic recording media in a solution consisting of the potassium salt of a polyunsaturated fatty acid, or a biodegradable cleaning agent comprising phosphates, surfactants and a complexing agent, and one or more organic solvents or water while being subjected to mechanical action, and separately removing the magnetic powder from the substrate material by washing or sedimentation or in a magnetic separator.

    Materials suitable as crosslinkable binder components
    9.
    发明专利
    Materials suitable as crosslinkable binder components 未知

    公开(公告)号：GB2285807B

    公开(公告)日：1998-04-29

    申请号：GB9500512

    申请日：1995-01-11

    Applicant: BASF MAGNETICS GMBH ,  EMTEC MAGNETICS GMBH

    Inventor： WUENSCH THOMAS ,  BRODT GREGOR ,  KRESS RIA ,  SCHNEIDER NORBERT ,  KOHL ALBERT ,  LEHNER AUGUST ,  BALZ WERNER

    IPC: C08G18/12 ,  C08G18/61 ,  C08G18/65 ,  C08G18/66 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

    Abstract: Preparation of materials (I) having an average molecular weight from 4000 to 30,000, obtainable by reacting 1) a polyurethane (II) comprising a) 1 mol of a diol (III) having an average molecular weight of from 400 to 4000, b) from 0.3 to 9 mol of an aliphatic or cycloaliphatic diol (IV) of 2 to 18 carbon atoms, c) from 0.3 to 9 mol of an aromatic diol (V) of 8 to 30 carbon atoms, d) from 0.01 to 1 mol of a trihydric alcohol (VI) of 3 to 18 carbon atoms, e) from 0.001 to 1 mol of a polyhydric alcohol (VII) of 3 to 14 carbon atoms which contains a tertiary amino group and f) an amount of a diisocyanate (VIII) of 6 to 30 carbon atoms such that the molar ratio of the isocyanate groups to the total number of hydroxyl groups in (III) to (VII) is from 1.05:1 to 1.4:1 with 2) a compound (IX) which contains one or more hydroxyl groups and one or more amino groups reactive toward isocyanate groups, the amount of (IX) being such that the number of reactive amino groups corresponds to the number of isocyanate groups in the polyurethane (II). The materials may be used as crosslinkable binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.

    10.
    发明专利
    未知

    公开(公告)号：FR2714909B1

    公开(公告)日：1997-01-31

    申请号：FR9500186

    申请日：1995-01-10

    Applicant: BASF MAGNETICS GMBH

    Inventor： WUENSCH THOMAS ,  BRODT GREGOR ,  KRESS RIA ,  SCHNEIDER NORBERT ,  KOHL ALBERT ,  LEHNER AUGUST ,  BALZ WERNER

    IPC: C08G18/12 ,  C08G18/61 ,  C08G18/65 ,  C08G18/66 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  C08G18/32

    Abstract: Preparation of materials (I) having an average molecular weight from 4000 to 30,000, obtainable by reacting 1) a polyurethane (II) comprising a) 1 mol of a diol (III) having an average molecular weight of from 400 to 4000, b) from 0.3 to 9 mol of an aliphatic or cycloaliphatic diol (IV) of 2 to 18 carbon atoms, c) from 0.3 to 9 mol of an aromatic diol (V) of 8 to 30 carbon atoms, d) from 0.01 to 1 mol of a trihydric alcohol (VI) of 3 to 18 carbon atoms, e) from 0.001 to 1 mol of a polyhydric alcohol (VII) of 3 to 14 carbon atoms which contains a tertiary amino group and f) an amount of a diisocyanate (VIII) of 6 to 30 carbon atoms such that the molar ratio of the isocyanate groups to the total number of hydroxyl groups in (III) to (VII) is from 1.05:1 to 1.4:1 with 2) a compound (IX) which contains one or more hydroxyl groups and one or more amino groups reactive toward isocyanate groups, the amount of (IX) being such that the number of reactive amino groups corresponds to the number of isocyanate groups in the polyurethane (II). The materials may be used as crosslinkable binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.

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