公开(公告)号：DE3786476D1

公开(公告)日：1993-08-19

申请号：DE3786476

申请日：1987-03-07

Applicant: BASF AG

Inventor： DUST MATTHIAS DR ,  NEUMANN PETER DR ,  SCHEFCZIK ERNST DR ,  BENTHACK-THOMS HEIDI DR ,  BARZYNSKI HELMUT DR ,  SCHOMANN KLAUS-DIETER DR ,  KUPPELMAIER HARALD DR ,  KOESTER EBERHARD DR

IPC: B41M5/26 ,  C09B23/00 ,  C09B57/06 ,  G11B7/24 ,  G11B7/244 ,  G11B7/247 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585

Abstract: Naphtholactam dyestuffs are (a) symmetrical bis-benz(cd)indole-2 tri- to nona-methin cyanine salts of formula (Ia) (where R1 and R3 = (substd.) 1-20C alkyl, opt. with 0 atoms in the chain, (substd.) 5-7C cycloalkyl or (substd.) phenyl; R2, R4 and R5 = H, (substd.) 1-6C alkyl, (substd.) 5-6C cycloalkyl, (substd.) phenyl, 1-6C alkoxycarbonyl, 1-6C carboxyalkyl, OH, 1-4C alkoxy or halogen; n = 0 or 1; p = 0, 1 or 2; Z1 and Z2 = H or, if n = 1, together may = a 2-3C alkylene chain, opt. substd. by 1-4C alkyl, or one or 2 carbonyl gps.; (-) = an anion; rings A, B, C and D may be substd. or benzo-anellated; excepted cpds. are such that: n and p not both = 0 if rings A, B, C and/or D are unsubstd. or substd. by halogen, 1-4C alkoxy, 1-4C mono- or dialkylamino or NO2, R2 not = H if n = 1, p = 0 and Z1 and Z2 both = H; at least one of R2, R4 and R5 not = H if n = 1, p = 1 and Z1 and Z2 both = H.)

公开(公告)号：DE3825656A1

公开(公告)日：1990-03-22

申请号：DE3825656

申请日：1988-07-28

Applicant: BASF AG

Inventor： PATSCH MANFRED DR ,  NAHR UWE DR ,  WIRSING FRIEDRICH DR ,  JESSEN JOERG L DR ,  PANDL KLAUS DR ,  MARSCHNER CLAUS DR ,  DUST MATTHIAS DR

IPC: C07D251/44 ,  C07C317/00 ,  C07C317/14 ,  C07C317/18 ,  C07C317/32 ,  C07C323/00 ,  C07C323/12 ,  C07C323/36 ,  C07C323/65 ,  C07D213/76 ,  C07D213/82 ,  C07D231/46 ,  C07D237/14 ,  C07D239/30 ,  C07D239/42 ,  C07D239/50 ,  C07D239/62 ,  C07D251/40 ,  C07D251/50 ,  C07D327/06 ,  C07D401/12 ,  C07D403/12 ,  C07D498/04 ,  C09B62/02 ,  C09B62/022 ,  C09B62/44 ,  C09B62/503 ,  C09B62/505 ,  C09B62/51 ,  C09B62/513 ,  C09B62/517

公开(公告)号：DE59305709D1

公开(公告)日：1997-04-17

申请号：DE59305709

申请日：1993-06-26

Applicant: BASF AG

Inventor： DUST MATTHIAS DR ,  BERGMANN UDO DR ,  SCHWANTJE GERD DR

IPC: C07C253/00 ,  C07C253/16 ,  C07C255/58 ,  C07C303/02 ,  C07C303/04 ,  C07C309/38 ,  C07C309/53 ,  C09B1/22 ,  C09B1/24

Abstract: 1,4-Diaminoanthraquinone-2,3-disulfonic acid (I) is prepared by reacting 1,4-diamino-2,3-dihaloanthraquinone (II) with boric acid in an inert organic solvent and further reacting the resulting reaction product (IIa) with an aqueous sulfite solution, by a method in which the inert organic solvent used is a nonpolar solvent having a boiling point of >/=130 DEG C. and a density of

公开(公告)号：DE58908296D1

公开(公告)日：1994-10-13

申请号：DE58908296

申请日：1989-03-22

Applicant: BASF AG

Inventor： ACKER MICHAEL DR ,  DUST MATTHIAS DR ,  NEUMANN PETER DR ,  BROSIUS SYBILLE 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：DE58907053D1

公开(公告)日：1994-04-07

申请号：DE58907053

申请日：1989-04-13

Applicant: BASF AG

Inventor： ACKER MICHAEL DR ,  NEUMANN PETER DR ,  SCHROTT WOLFGANG DR ,  DUST MATTHIAS DR

IPC: B41M5/26 ,  C09B23/00 ,  C09B23/10 ,  G11B7/24 ,  G11B7/244 ,  G11B7/2463 ,  G11B7/247 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595

公开(公告)号：DE3761520D1

公开(公告)日：1990-03-01

申请号：DE3761520

申请日：1987-06-23

Applicant: BASF AG

Inventor： DUST MATTHIAS DR ,  NEUMANN PETER DR

IPC: B41M5/26 ,  G11B7/24 ,  G11B7/244 ,  G11B7/247 ,  G11B7/2472 ,  G11B7/253 ,  G11B7/2534 ,  G11B7/254 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585

公开(公告)号：DE3813333A1

公开(公告)日：1989-11-02

申请号：DE3813333

申请日：1988-04-21

Applicant: BASF AG

Inventor： ACKER MICHAEL DR ,  NEUMANN PETER DR ,  SCHROTT WOLFGANG DR ,  DUST MATTHIAS DR

IPC: B41M5/26 ,  C09B23/00 ,  C09B23/10 ,  G11B7/24 ,  G11B7/244 ,  G11B7/2463 ,  G11B7/247 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595

公开(公告)号：DE3740421A1

公开(公告)日：1989-06-08

申请号：DE3740421

申请日：1987-11-28

Applicant: BASF AG

Inventor： DUST MATTHIAS DR ,  NEUMANN PETER DR ,  LEYRER REINHOLD J DR

IPC: G03G5/09 ,  C07D209/90 ,  C07D401/00 ,  C07D403/08 ,  C07D405/06 ,  C07D417/00 ,  C07D495/06 ,  C07D519/00 ,  G03G5/06 ,  G03G13/26

Abstract: Multilayer, electrophotographic recording material having… (A) an electrically conductive substrate and having… (B) one or more layer(s) of… (b1) one or more binder(s),… (b2) one or more charge carrier-producing compound(s) or sensitisers,… (b3) one or more charge carrier-transporting compound(s) or photoconductors and, if required,… (b4) additives,… wherein the charge carrier-producing compounds or sensitisers (b2) used are naphtholactam dyes of the general formula I … … in which the indices and the variables have the meaning described in the Claims and in the description, and novel naphtholactam dyes of the general formula I, in which the radical R is a substituted, monocyclic 1,3-thiazolyl radical bonded via a ring carbon atom to the naphtholactam skeleton, the use of these novel naphtholactams I in electrophotographic and laser-optical recording materials and novel reprographic methods and novel processes for the production of offset printing plates and of photoresists, in which the novel multilayer, electrophotographic recording material is used.

公开(公告)号：DE3738911A1

公开(公告)日：1989-05-24

申请号：DE3738911

申请日：1987-11-17

Applicant: BASF AG

Inventor： DUST MATTHIAS DR ,  NEUMANN PETER DR ,  ACKER MICHAEL DR ,  BENTHACK-THOMS HEIDI DR ,  SCHOMANN KLAUS DIETER DR ,  KUPPELMAIER HARALD DR

IPC: B41M5/26 ,  C09B23/01 ,  C09B57/06 ,  G11B7/20 ,  G11B7/247 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2536 ,  G11B7/254 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595

Abstract: Naphtholactamtrimethine dyes useful in optical recording media have the formula where R1, R2, R3 and R4 are identical or different and each is independently of the others C1-C22-alkyl, which may be substituted and/or interrupted by one or more oxygen atoms, one or more imino groups or one or more C1-C4-alkylimino groups, or is substituted or unsubstituted C5-C7-cycloalkyl or substituted or unsubstituted phenyl, and the rings A, B, C and D may each be substituted and/or benzofused.

公开(公告)号：DE3429438A1

公开(公告)日：1988-06-23

申请号：DE3429438

申请日：1984-08-10

Applicant: BASF AG

Inventor： ETZBACH KARL-HEINZ DR ,  NEUMANN PETER DR ,  DUST MATTHIAS DR ,  RINGSDORF HELMUT PROF DR ,  SCHMIDT HANS-WERNER DR ,  BAUR GUENTER DR ,  WINDSCHEID FRIEDRICH ,  KIEFER RUDOLF DR

IPC: B41M5/26 ,  C09K19/38 ,  C09K19/40 ,  G02F1/13 ,  G11B7/24 ,  G11B7/244 ,  G11B7/245 ,  G11B7/248 ,  G11B7/25 ,  C09K19/00

Abstract: An optical recording medium contains, on a base, one or more dyes and a polymer which forms liquid-crystalline phases. The information is written into the uniformly oriented liquid-crystalline polymer layer, for example by means of a laser. During this procedure, the polymer heats up locally to above a phase transition temperature. By cooling, the resulting change is frozen in the glass state. The information can be erased by applying an electric field and/or heating. The recording material permits high-contrast storage and possesses high sensitivity, good resolution and excellent stability.