发明授权
US3984243A Photographic developer compositions for obtaining high contrast images
失效
用于获得高对比度图像的照相显影剂组合物
- 专利标题： Photographic developer compositions for obtaining high contrast images
- 专利标题（中）： 用于获得高对比度图像的照相显影剂组合物
-
申请号： US427171申请日： 1973-12-21
-
公开(公告)号： US3984243A公开(公告)日： 1976-10-05
- 发明人: Isao Shimamura , Yoo Iijima , Katsumi Hayashi , Haruhiko Iwano , Tadao Shishido
- 申请人： Isao Shimamura , Yoo Iijima , Katsumi Hayashi , Haruhiko Iwano , Tadao Shishido
- 申请人地址： JA Minami-ashigara
- 专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人地址： JA Minami-ashigara
- 优先权： JA47-128607 19721221
- 主分类号： G03C5/29
- IPC分类号： G03C5/29 ; G03C5/305 ; G03C5/30
摘要：
A photographic developer composition for obtaining high contrast images which comprises (1) a dihydroxybenzene developing agent, (2) an alkanolamine and (3) a compound having the following formula (I) ##SPC1##wherein R.sub.1 and R.sub.2 each represents a lower aliphatic hydrocarbon group, wherein R.sub.1 and R.sub.2 may combine to form a ring, n represents 0 or 1, and X.sup..crclbar. represents an anion.
公开/授权文献
- US5060466A Composite rope and manufacturing method for the same 公开/授权日：1991-10-29