公开(公告)号：DE59404172D1

公开(公告)日：1997-10-30

申请号：DE59404172

申请日：1994-12-10

Applicant: BASF AG

Inventor： SENS RUEDIGER ,  ETZBACH KARL-HEINZ ,  BACH VOLKER

IPC: C07D409/06 ,  C09B23/04 ,  C09B57/00

Abstract: PCT No. PCT/EP94/04114 Sec. 371 Date Jun. 14, 1996 Sec. 102(e) Date Jun. 14, 1996 PCT Filed Dec. 10, 1994 PCT Pub. No. WO95/17470 PCT Pub. Date Jun. 29, 1995Pyridone dyes of the formula where X is nitrogen or C-CN, R1 and R2 are each substituted or unsubstituted C1-C10-alkyl, C5-C7-cycloalkyl, C3-C4-alkenyl or substituted or unsubstituted phenyl, or R1 and R2 together with the nitrogen atom joining them together are a heterocyclic radical, R3 is hydrogen, C1-C10-alkyl, C4-C7-cylcoalkyl, benzyl, substituted or unsubstituted phenyl, substituted or unsubstituted furanyl or substituted or unsubstituted thienyl, R4 is hydrogen, C1-C4-alkyl or substituted or unsubstituted phenyl, R5 is cyano, carbamoyl, mono- or di(C1-C8-alkyl)carbamoyl, carboxyl, C1-C8-alkoxycarbonyl or benzimidazolyl, and R6 is substituted or unsubstituted C1-C10-alkyl, C5-C7-cycloalkyl or substituted or unsubstituted phenyl, are useful for dyeing or printing textile materials.

公开(公告)号：DE59010014D1

公开(公告)日：1996-02-08

申请号：DE59010014

申请日：1990-09-12

Applicant: BASF AG

Inventor： WAGENBLAST GERHARD ,  BACH VOLKER

IPC: B41M5/36 ,  G02F1/13 ,  G03G5/00 ,  G03G5/024 ,  G03G5/12 ,  G03G13/01 ,  G03G13/056 ,  G03G15/05 ,  G03G15/056

Abstract: PCT No. PCT/EP90/01539 Sec. 371 Date Mar. 13, 1992 Sec. 102(e) Date Mar. 13, 1992 PCT Filed Sep. 12, 1990 PCT Pub. No. WO91/04514 PCT Pub. Date Apr. 4, 1991.A process for the reversible or irreversible production of an image by imagewise exposure of a recording layer to energy in the presence or absence of an electrical and/or magnetic field, resulting in a pattern of surface charges on the surface of the recording layer corresponding to the imagewise exposure to energy. The recording layer consists essentially of an organic material which solidifies in a glass-like manner, is non-photoconductive or substantially non-photoconductive and contains permanent dipoles, in which the pattern of surface charges is produced without or substantially without the formation of free charge carriers by reversible imagewise alignment of at least some of the permanent dipoles present in the recording layer. The process is advantageously carried out using an apparatus which comprises a suitable recording element, devices for imagewise exposure of the recording layer of the recording element to energy, and a counter-electrode which is in direct contact with the recording layer and can be removed therefrom. The pattern of surface charges produced by the process can be toned with liquid or solid toners. The resultant toner image can then either be fixed on the recording layer or transferred from the recording layer to another surface, after which the pattern of surface charges can be erased by exposing the entire surface to energy. A further image can then be produced. In this way, photocopies can be produced without the need to use the high-voltage sources which are necessary in conventional electrophotographic processes.