Invention Grant
- Patent Title: Cyan dye-forming couplers
- Patent Title (中): 青色染料成色剂
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Application No.: US23782Application Date: 1987-03-09
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Publication No.: US4762925APublication Date: 1988-08-09
- Inventor: Ivano Delprato
- Applicant: Ivano Delprato
- Applicant Address: MN St. Paul
- Assignee: Minnesota Mining and Manufacturing Company
- Current Assignee: Minnesota Mining and Manufacturing Company
- Current Assignee Address: MN St. Paul
- Priority: ITX21992A/84 19840720
- Main IPC: C07C205/22
- IPC: C07C205/22 ; C07C205/43 ; C07D265/36 ; G03C7/32 ; G03C7/34
Abstract:
Cyan dye-forming 6-hydroxy-2H-1,4-benzoxazin-3-(4H)-one couplers, preferably cyan dye-forming couplers corresponding to the general formula: ##STR1## wherein R represents hydrogen or R"'--X--NH, R' represents hydrogen or a substituted or unsubstituted alkyl group, R" represents hydrogen or R.sup.iv --X--, X represents a member selected from the group consisting of --CO--, --SO.sub.2 --, --OCOCO--, --NHCO--, R"' and R.sup.iv represent a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group and Y and Z, the same or different, represent hydrogen, halogen and a substituted or unsubstituted alkyl or alkoxy group,are described for use in silver halide color photographic processes and elements.
Public/Granted literature
- US5900526A Soybean variety 92B01 Public/Granted day:1999-05-04
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