EP 0472007 B1 19970205 - Photographic chemicals with reduced dust fraction
Title (en)
Photographic chemicals with reduced dust fraction
Title (de)
Fotochemikalien mit vermindertem Staubanteil
Title (fr)
Agents photographiques à contenu reduit de poussière
Publication
Application
Priority
DE 4025560 A 19900811
Abstract (en)
[origin: JPH04254853A] PURPOSE: To obtain a photographic processing chemical generating no dust or relatively small dust by incorporating a specific compound. CONSTITUTION: This photographic chemical consists essentially of an active principal agent and an assistant and further contains at least one kind of a compound expressed respectively by formula I and II or for example, at least one kind of a water soluble polymer such as polystyrene sulfonic acid and polyvinyl alcohol or a mixture of at least two kinds expressed by formula I and II are incorporated in the ratio of 0.5-100g per 1kg solid matter. In formula I and II, R expresses a 2-4C alkyl, (n) expresses 1-200 and R1 expresses 10-18C alkyl.
IPC 1-7
IPC 8 full level
G03C 5/29 (2006.01); G03C 5/26 (2006.01); G03C 7/413 (2006.01); G03C 7/42 (2006.01)
CPC (source: EP US)
G03C 5/265 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT
DOCDB simple family (publication)
EP 0472007 A1 19920226; EP 0472007 B1 19970205; DE 4025560 A1 19920213; DE 59108527 D1 19970320; JP 2904969 B2 19990614; JP H04254853 A 19920910; US 5258268 A 19931102
DOCDB simple family (application)
EP 91112641 A 19910727; DE 4025560 A 19900811; DE 59108527 T 19910727; JP 21938291 A 19910806; US 73652791 A 19910726