Global Patent Index - EP 0312638 B1

EP 0312638 B1 19930120 - PHOTOGRAPHIC SUPPORT MATERIAL FOR LIGHT-SENSITIVE LAYERS IN THE FORM OF A PLASTIC-COATED PAPER OR A PLASTIC SHEET WITH A WRITABLE ANTISTATIC BACK-LAYER COATING

Title (en)

PHOTOGRAPHIC SUPPORT MATERIAL FOR LIGHT-SENSITIVE LAYERS IN THE FORM OF A PLASTIC-COATED PAPER OR A PLASTIC SHEET WITH A WRITABLE ANTISTATIC BACK-LAYER COATING

Publication

EP 0312638 B1 19930120 (DE)

Application

EP 87115556 A 19871023

Priority

EP 87115556 A 19871023

Abstract (en)

[origin: EP0312638A1] The back-layer coating is composed of a terpolymer latex of styrene/butadiene/methacrylate, a hard silica and an aqueous solution of the sodium salt of an organic polybasic acid. The quantities of these substances are selected such that optimum results are obtained with respect to imprintability, inscribability with pencils, low fouling in spent developer baths, low discoloration in the developer, good gluing adhesion and antistatic properties.

IPC 1-7

G03C 1/76; G03C 1/79; G03C 1/85

IPC 8 full level

G03C 1/85 (2006.01); G03C 1/95 (2006.01)

CPC (source: EP)

G03C 1/85 (2013.01); G03C 1/95 (2013.01)

Citation (examination)

englische Übersetzung des japanischen Dokumentes JP-A-6 076 744

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0312638 A1 19890426; EP 0312638 B1 19930120; AT E84885 T1 19930215; DE 3783768 D1 19930304; ES 2037056 T3 19930616; GR 3007455 T3 19930730; GR 920300114 T1 19930217

DOCDB simple family (application)

EP 87115556 A 19871023; AT 87115556 T 19871023; DE 3783768 T 19871023; ES 87115556 T 19871023; GR 920300114 T 19930217; GR 930400642 T 19930324