发明授权
- 专利标题： Photographic materials having releasable compounds
- 专利标题（中）： 具有可释放化合物的摄影材料
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申请号： US563725申请日： 1990-08-06
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公开(公告)号： US5599656A公开(公告)日： 1997-02-04
- 发明人: Drake M. Michno , Richard P. Szajewski , Stephen P. Singer
- 申请人： Drake M. Michno , Richard P. Szajewski , Stephen P. Singer
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： G03C1/42
- IPC分类号： G03C1/42 ; G03C7/305 ; G03C7/32
摘要：
Photographic elements are disclosed having a first coupler represented by the formula:COUP.sub.1 -T-INHwhereinCOUP.sub.1 is a coupler moiety,T is a timing group bonded to INH through a substituted or unsubstituted methylene group contained in T and bonded to COUP.sub.1 through an O, S, or N atom contained in T,and INH is a development Inhibitor moiety, andwherein the T-INH group is able to undergo electron transfer along a conjugated system therein to cleave INH after T-INH is cleaved from COUP.sub.1, anda second coupler represented by the formula:COUP.sub.2 -(TIME).sub.n -S-R.sub.1 -R.sub.2wherein COUP.sub.2 is a coupler moiety, TIME is a timing group, n is 0 or 1, R.sub.1 is a divalent linking group that does not include a heterocyclic ring attached directly to S, and R.sub.2 is a water solubilizing group.
公开/授权文献
- US5700948A Pyrrolidine compounds and process of preparing 公开/授权日：1997-12-23