Title:
Photographic colour images from amino substituted phenols
United States Patent 3222176
US Patent References:
Nondiffusing acylacetyl sulphonamide coupler
- - 2350138
Preparation of azine dyestuff images
- - 2536010
Diacylaminophenol couplers
- - 2772162
Nondiffusing acylacetyl sulphonamide coupler
- - 2350138
Preparation of azine dyestuff images
- - 2536010
Diacylaminophenol couplers
- - 2772162
Inventors:
Jan, Jaeken
Publication Date:
12/07/1965
View Patent Images:
Export Citation:
Assignee:
GEVAERT PHOTO PROD NV
Primary Class:
Other Classes:
430/552
International Classes:
C07D333/34; G03C7/34; C07D333/00
Foreign References:
| CA478527A |