Global Patent Index - EP 0582144 B1

EP 0582144 B1 19970423 - Laser addressable thermal recording material

Title (en)

Laser addressable thermal recording material

Title (de)

Laseradressierbares wärmeempfindliches Aufzeichnungsmaterial

Title (fr)

Matériau d'enregistrement thermosensible adressé par laser

Publication

EP 0582144 B1 19970423 (EN)

Application

EP 93111757 A 19930722

Priority

US 92351592 A 19920803

Abstract (en)

[origin: EP0582144A1] A thermal recording material containing a suitable substrate coated with an imaging system, the imaging system containing: (a) a thermally reducible source of silver; (b) a reducing agent for silver ion; (c) a dye which absorbs electromagnetic radiation in the wavelength range of about 500-1100 nm; and (d) a polymeric binder. In a preferred embodiment, the reducing agent comprises a 3-indazoline or a urea compound as a development accelerator. In another preferred embodiment, the electromagnetic radiation absorbing dye is a near-infrared light absorbing dye. In still another preferred embodiment, the electromagnetic radiation absorbing dye is present in the imaging system in a layer adjacent to a layer containing the thermally reducible source of silver and reducing agent for silver ion.

IPC 1-7

B41M 5/32; G03C 1/498

IPC 8 full level

B41M 5/32 (2006.01); G03C 1/498 (2006.01); G03C 8/40 (2006.01)

CPC (source: EP)

G03C 1/498 (2013.01); G03C 1/49854 (2013.01); G03C 1/4989 (2013.01); B41M 5/32 (2013.01); B41M 5/3333 (2013.01); B41M 5/3377 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0582144 A1 19940209; EP 0582144 B1 19970423; DE 69310045 D1 19970528; DE 69310045 T2 19971211; JP H06194781 A 19940715

DOCDB simple family (application)

EP 93111757 A 19930722; DE 69310045 T 19930722; JP 19116193 A 19930802