公开(公告)号：US4105451A

公开(公告)日：1978-08-08

申请号：US753391

申请日：1976-12-22

申请人： James G. Smith ,  Ralph C. Reed

发明人： James G. Smith ,  Ralph C. Reed

IPC分类号： G03C1/498 ,  G03C1/02 ,  G03C1/34 ,  G03C1/72

CPC分类号： G03C1/498

摘要： An improved photothermographic material can be prepared by sequentially mixing the following components: (1) a dispersion comprising a 2-mercaptobenzothiazole, 2-mercaptobenzimidazole, 2-mercaptobenzoxazole or 2-mercaptobenzoselenazole compound and a silver salt of certain heterocyclic thiones with (2) a reducing agent solution, (3) a binder, and (4) a silver halide photosensitive composition containing a spectral sensitizing dye, such as a symmetrical or unsymmetrical thiosulfato substituted benzimidazolocarbocyanine dye. A photothermographic material containing the described components can provide a developed image after imagewise exposure by merely heating the material to moderately elevated temperatures.

公开(公告)号：US4877721A

公开(公告)日：1989-10-31

申请号：US235772

申请日：1988-08-23

申请人： Donald R. Diehl ,  Ralph C. Reed

发明人： Donald R. Diehl ,  Ralph C. Reed

IPC分类号： C09B23/04 ,  C09B23/06 ,  C09B23/08 ,  G03C1/83

CPC分类号： C09B23/06 ,  C09B23/04 ,  C09B23/083 ,  G03C1/832

摘要： A methine oxonol dye having a bis-(2-pyrazolin-5-one nucleus) substituted with(a) acyl groups in the 3 and 3' position;(b) aryl groups in the 1 and 1' position; and(c) bearing from 4 to 6 acidic substituents, each of which are capable of forming a monovalent anion provided that at least two of such substituents are other than carboxyl, is disclosed for use as filter dyes in photographic elements.

摘要翻译： 具有由（a）在3和3'位置的酰基取代的双 - （2-吡唑啉-5-酮核）的次甲基氧杂菁染料; （b）1和1'位的芳基; 并且（c）带有4至6个酸性取代基，其各自能够形成一价阴离子，只要这些取代基中的至少两个不是羧基，则被公开用作照相元件中的滤光染料。