公开(公告)号：DE58906863D1

公开(公告)日：1994-03-17

申请号：DE58906863

申请日：1989-04-29

Applicant: BASF AG

Inventor： SCHROTT WOLFGANG DR ,  NEUMANN PETER DR ,  SCHMITT MICHAEL DR ,  BROSIUS SIBYLLE DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

IPC: B41M5/26 ,  C07C271/08 ,  C07C271/12 ,  C07C271/24 ,  C09B23/00 ,  C09B57/00 ,  G11B7/24

Abstract: Azulenesquaric acid dyes of the formula where L is substituted or unsubstituted C1-C12-alkylene, R1 is C1-C20-alkyl, C5-C7-cycloalkyl or substituted or unsubstituted phenyl and R2, R3, R4 and R5 are each independently of the others hydrogen or substituted or unsubstituted C1-C12-alkyl, with the proviso that when R5 is hydrogen the positions of the substituents CH2-L-O-CO-NHR1 and R4 on an azulene ring may also be interchanged within a ring in either or both of the azulene rings, derived from azulene intermediates that contain urethane groups, are suitable for use in an optical recording medium.

公开(公告)号：DE4220860A1

公开(公告)日：1994-01-05

申请号：DE4220860

申请日：1992-06-25

Applicant: BASF AG

Inventor： FITTERER HORST ,  BECKER DIETER ,  NOWAK UWE DR ,  SCHOMANN KLAUS DIETER DR ,  MUELLER HANS ,  RICHTER VOLKER ,  DINGLER ROBERT ,  BAUR REINHOLD DR ,  SCHLATTER MANFRED DR ,  HUEBNER DIETMAR

IPC: B08B5/04 ,  B08B5/02 ,  B08B11/00 ,  B08B15/00 ,  G11B23/50 ,  B08B1/02 ,  B65H23/34

Abstract: For cleaning or smoothing the surface of a material web (2), the latter is passed over at least one blade (4), the web being pressed against the blade edge (10) by means of a vacuum. The opening (9) of a vacuum chamber (8) formed next to the blade (4) is adjustable with respect to the blade edge (10), so that different flows and forces can be set.

公开(公告)号：DE3935877A1

公开(公告)日：1991-05-02

申请号：DE3935877

申请日：1989-10-27

Applicant: BASF AG

Inventor： BROSIUS SIBYLLE DR ,  FEUERHERD KARL-HEINZ DR ,  HARTEN ULRICH DR ,  SCHMITT MICHAEL DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

IPC: B41M5/26 ,  C08L61/04 ,  C08L61/06 ,  G11B7/24 ,  G11B7/244

公开(公告)号：DE3933212A1

公开(公告)日：1991-04-11

申请号：DE3933212

申请日：1989-10-05

Applicant: BASF AG

Inventor： SCHOMANN KLAUS DIETER DR ,  HAMMERSCHMITT PETER ,  BROSIUS SIBYLLE DR ,  FEUERHERD KARL-HEINZ DR ,  ALBERT BERNHARD DR ,  SCHMITT MICHAEL DR ,  ACKER MICHAEL DR

IPC: G11B5/41 ,  G11B5/54 ,  G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/085 ,  G11B11/105 ,  G11B19/04 ,  G11B19/06 ,  G11B33/14

Abstract: Moving laser beams from useful tracks to alternative positions in devices in which information is stored optically or magneto-optically. This results in higher signal-to-noise ratios.

公开(公告)号：DE3911829A1

公开(公告)日：1990-10-18

申请号：DE3911829

申请日：1989-04-11

Applicant: BASF AG

Inventor： BROSIUS SIBYLLE DR ,  ALBERT BERNHARD DR ,  SCHMITT MICHAEL DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR ,  HARTEN ULRICH DR

IPC: B41M5/26 ,  G11B7/24 ,  G11B7/244

Abstract: The invention relates to an optical recording medium, essentially consisting of a base material and a light-absorbing layer which contains a thermoplastic binder and at least one dye, the thermoplastic binder being a polycyclic hydrocarbon having a glass temperature Tg higher than 150 DEG C and being soluble to the extent of more than 3% by weight in aliphatic and aromatic hydrocarbons.

公开(公告)号：DE3816068A1

公开(公告)日：1989-11-23

申请号：DE3816068

申请日：1988-05-11

Applicant: BASF AG

Inventor： SCHROTT WOLFGANG DR ,  NEUMANN PETER DR ,  SCHMITT MICHAEL DR ,  BROSIUS SIBYLLE DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

IPC: B41M5/26 ,  C07C271/08 ,  C07C271/12 ,  C07C271/24 ,  C09B23/00 ,  C09B57/00 ,  G11B7/24

Abstract: Azulenesquaric acid dyes of the formula where L is substituted or unsubstituted C1-C12-alkylene, R1 is C1-C20-alkyl, C5-C7-cycloalkyl or substituted or unsubstituted phenyl and R2, R3, R4 and R5 are each independently of the others hydrogen or substituted or unsubstituted C1-C12-alkyl, with the proviso that when R5 is hydrogen the positions of the substituents CH2-L-O-CO-NHR1 and R4 on an azulene ring may also be interchanged within a ring in either or both of the azulene rings, derived from azulene intermediates that contain urethane groups, are suitable for use in an optical recording medium.

公开(公告)号：DE3810642A1

公开(公告)日：1989-10-12

申请号：DE3810642

申请日：1988-03-29

Applicant: BASF AG

Inventor： ACKER MICHAEL DR ,  DUST MATTHIAS DR ,  NEUMANN PETER DR ,  BROSIUS SIBYLLE DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

IPC: B41M5/26 ,  C09B23/00 ,  C09B23/01 ,  C09B23/08 ,  G11B7/24 ,  G11B7/2472 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2536 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595

Abstract: Methine dyes of the formula where R1, R2, R3, R4, X, Y and the rings A and B each have specific meanings, and methine dyes obtainable by reacting an organic mono- or polyisocyanate with such a methine dye of the abovementioned formal where only the radicals R1 and/and R4 have a group reacting with an organic mono- or polyisocyanate are useful in optical recording media.

公开(公告)号：HK95186A

公开(公告)日：1986-12-19

申请号：HK95186

申请日：1986-12-11

Applicant: BASF AG

Inventor： BALZ WERNER DR ,  MUENZNER WULF DR ,  SCHOMANN KLAUS DIETER DR ,  BERGER HEINZ ,  ROOS ROLAND

IPC: G11B15/60 ,  G11B23/04 ,  G11B23/087 ,  G11B23/50 ,  H05F3/02

Abstract: In a tape cassette, particularly a video tape cassette, equalization of electrostatic charges between the two faces of the tape is effected by a connector element or connector elements electrically connecting at least one of two electrically conducting guide elements contacting the front of the tape and provided on the two sides, respectively, of the cassette with at least the associated one of two electrically conducting tape deflecting elements provided in the two respective front corners of the tape cassette. In this manner sticking of the tape to the deflecting elements due to electrostatic attraction therebetween and also the build-up of electrostatic charges along the tape path parallel to the front of the cassette housing due to the transporting of such charges from the deflecting elements as a result of the tape travel, are counteracted.

公开(公告)号：DE59106187D1

公开(公告)日：1995-09-14

申请号：DE59106187

申请日：1991-05-11

Applicant: BASF AG

Inventor： ACKER MICHAEL DR ,  ALBERT BERNHARD DR ,  BROSIUS SIBYLLE DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

IPC: C09B23/00 ,  B41M5/26 ,  C09B23/01 ,  C09B23/08 ,  C09K11/06 ,  G11B7/24 ,  G11B7/244 ,  G11B7/246 ,  G11B7/247 ,  G11B7/2472 ,  G11B7/249 ,  G11B7/2495 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2535 ,  H05B33/12 ,  H05B33/14

Abstract: Polymethine dyes suitable for use in an optical recording medium have the formula where p is 0 or 1, Z is nitrogen, oxygen, sulfur, isopropylidene, cyclohexylidene or the radical -CH=CH-, Q is a radical of the formula where R2 is hydrogen, chlorine, bromine or C1-C6-alkyl, L is C1-C12-alkylene, or a single bond R1 is hydrogen, substituted or unsubstituted C1-C20-alkyl, substituted or unsubstituted C5-C7-cycloalkyl or substituted or unsubstituted phenyl, X(-) is an anion, and the rings A may each be substituted or benzofused.

公开(公告)号：ES2061776T3

公开(公告)日：1994-12-16

申请号：ES89107888

申请日：1989-04-29

Applicant: BASF AG

Inventor： SCHROTT WOLFGANG DR ,  NEUMANN PETER DR ,  SCHMITT MICHAEL DR ,  BROSIUS SIBYLLE DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

IPC: C07C271/08 ,  C07C271/12 ,  C07C271/24 ,  B41M5/26 ,  C09B23/00 ,  C09B57/00 ,  G11B7/24

Abstract: Azulenesquaric acid dyes of the formula where L is substituted or unsubstituted C1-C12-alkylene, R1 is C1-C20-alkyl, C5-C7-cycloalkyl or substituted or unsubstituted phenyl and R2, R3, R4 and R5 are each independently of the others hydrogen or substituted or unsubstituted C1-C12-alkyl, with the proviso that when R5 is hydrogen the positions of the substituents CH2-L-O-CO-NHR1 and R4 on an azulene ring may also be interchanged within a ring in either or both of the azulene rings, derived from azulene intermediates that contain urethane groups, are suitable for use in an optical recording medium.