Invention Grant
US4622286A Photoimaging composition containing admixture of leuco dye and
2,4,5-triphenylimidazolyl dimer
失效
含有无色染料和2,4,5-三苯基咪唑基二聚体的混合物的光成像组合物
- Patent Title: Photoimaging composition containing admixture of leuco dye and 2,4,5-triphenylimidazolyl dimer
- Patent Title (中): 含有无色染料和2,4,5-三苯基咪唑基二聚体的混合物的光成像组合物
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Application No.: US776862Application Date: 1985-09-16
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Publication No.: US4622286APublication Date: 1986-11-11
- Inventor: Thomas M. Sheets
- Applicant: Thomas M. Sheets
- Applicant Address: DE Wilmington
- Assignee: E. I. Du Pont de Nemours and Company
- Current Assignee: E. I. Du Pont de Nemours and Company
- Current Assignee Address: DE Wilmington
- Main IPC: G03C1/675
- IPC: G03C1/675 ; G03C1/73 ; G03F7/031 ; G03C1/52
Abstract:
Photoimaging composition comprising an admixture of leuco dye, and at least one 2,4,5-triphenylimidazolyl dimer prepared by an oxidative coupling reaction, a reaction product, 2,2',5-tris-(o-chlorophenyl)-4-(3,4-dimethoxyphenyl)-4',5'-diphenylbiimidazole, being present in an amount of 0.01 to 90.0% by weight based on the weight of solids in the composition. The composition when coated on a support is useful for prepress proofing.
Public/Granted literature
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