EP 0697620 B1 19980325 - Photographic support material comprising a back-side coating
Title (en)
Photographic support material comprising a back-side coating
Title (de)
Fotografisches Trägermaterial mit Rückseitenschicht
Title (fr)
Support photographique avec une couche arrière
Publication
Application
Priority
DE 4428941 A 19940816
Abstract (en)
[origin: EP0697620A1] Photographic base of plastics-coated paper or plastics film has a back coating contg. (a) an acrylate copolymer (I) contg. COOH gps., more than 80 wt.% of which consists of acrylate ester, 1-6 C alkyl-acrylate ester and/or styrene; (b) an organic polyacid (II) contg. COOH or SO3H gps. in free acid or salt form; (c) a thickener (III) with good salt compatibility; and (d) coarse SiO2 grains (IV) with a particle size of 3-6 microns, a pore vol. less than 1 ml/g and a surface area of over 400 m<2>/g. Also claimed is a coating compsn. for preparing this coating.
IPC 1-7
IPC 8 full level
G03C 1/76 (2006.01); D21H 19/20 (2006.01); D21H 19/36 (2006.01); G03C 1/775 (2006.01); G03C 1/85 (2006.01); G03C 1/95 (2006.01); G03C 1/89 (2006.01)
CPC (source: EP US)
D21H 19/20 (2013.01 - EP US); G03C 1/85 (2013.01 - EP US); G03C 1/95 (2013.01 - EP US); G03C 1/7614 (2013.01 - EP US); G03C 1/81 (2013.01 - EP US); G03C 1/853 (2013.01 - EP US); G03C 1/89 (2013.01 - EP US); G03C 2001/7628 (2013.01 - EP US); Y10T 428/259 (2015.01 - EP US); Y10T 428/269 (2015.01 - EP US); Y10T 428/273 (2015.01 - EP US); Y10T 428/277 (2015.01 - EP US); Y10T 428/2891 (2015.01 - EP US); Y10T 428/2993 (2015.01 - EP US); Y10T 428/31667 (2015.04 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0697620 A1 19960221; EP 0697620 B1 19980325; DE 4428941 A1 19960222; DE 4428941 C2 19980416; DE 59501690 D1 19980430; JP 3430232 B2 20030728; JP H08171174 A 19960702; US 5756200 A 19980526
DOCDB simple family (application)
EP 95112373 A 19950806; DE 4428941 A 19940816; DE 59501690 T 19950806; JP 23079995 A 19950816; US 84147197 A 19970422