EP 0785465 A1 19970723 - Molecular grafting of carboxyl reactive hardeners to energetically treated polyesters to promote adhesion of layers
Title (en)
Molecular grafting of carboxyl reactive hardeners to energetically treated polyesters to promote adhesion of layers
Title (de)
Molekular-Grafting von gegenüber Carboxyl reaktiven Härtern zu Energie-behandelten Polyestern zur Förderung des Adhäsion von Schichten
Title (fr)
Greffage moléculaire de durcisseurs réactifs vis à vis carboxyl sur polyesters prétraités avec une source d'énergie pour promouvoir l'adhésion de couches
Publication
Application
Priority
US 58904696 A 19960119
Abstract (en)
The present invention comprises a polyester film support in which the surface has been subjected to an energetic treatment to produce carboxyl groups on the polyester surface. The treated surface is then coated with a dilute solution of carboxyl reactive hardener and solvent (e.g., water) or a blend of carboxyl reactive hardener and gelatin and solvent (e.g., water). After drying the hardener or hardener/gelatin coated support, a photographic emulsion is coated on the surface. The resulting film element has excellent adhesion of the photographic emulsion after photoprocessing. Furthermore, the support coated with hardener/gelatin blend is safer to coat and handle than previously known methods involving grafting of hardener directly to the support. <IMAGE>
IPC 1-7
IPC 8 full level
G03C 1/30 (2006.01); G03C 1/795 (2006.01); G03C 1/91 (2006.01)
CPC (source: EP)
G03C 1/915 (2013.01); G03C 1/30 (2013.01)
Citation (applicant)
- US 5425980 A 19950620 - GRACE JEREMY M [US], et al
- US 4695532 A 19870922 - PONTICELLO IGNAZIO S [US], et al
- US 4689359 A 19870825 - PONTICELLO IGNAZIO S [US], et al
- US 41582695 A 19950403
- US 4241169 A 19801223 - PANKRATZ RICHARD P [US], et al
- US 4877724 A 19891031 - CHEN CHUNG Y [US], et al
- US 5236822 A 19930817 - RIECKE EDGAR E [US], et al
- US 4063952 A 19771220 - HIMMELMANN WOLFGANG, et al
- US 4055427 A 19771025 - BERGTHALLER PETER, et al
- US 4216108 A 19800805 - KOKELENBERG HENDRIK E [BE], et al
- US 4612280 A 19860916 - OKAMURA HISASHI [JP], et al
- US 4673632 A 19870616 - OKAMURA HISASHI [JP], et al
- US 4111926 A 19780905 - SERA HIDEFUMI, et al
Citation (search report)
- [Y] BE 669393 A 19651231
- [Y] DE 3730319 A1 19890330 - AGFA GEVAERT AG [DE]
- [DA] US 5425980 A 19950620 - GRACE JEREMY M [US], et al
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0785465 A1 19970723; CA 2193040 A1 19970720; JP H09197618 A 19970731
DOCDB simple family (application)
EP 97200037 A 19970108; CA 2193040 A 19961216; JP 574097 A 19970116