Patent · US Expired

Color photographic recording material

US5108883A · kind A · utility

7Cited by
4References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 9, 1990
Grant dateApr 28, 1992
Priority date
Expiry dateNov 9, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03C7/39292
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Color photographic recording material containing as cyan correction dyes, azomethine dyes corresponding to the general formula IV or V ##STR1## is distinguished from materials containing the cyan correction dyes hitherto used by its increased stability of latent image nuclei when stored under tropical conditions (35.degree. C. at 90% relative humidity). In formulae IV and V, PA1 R.sub.1 and R.sub.2 denote H, optionally substitued C.sub.1 -C.sub.4 -alkyl, C.sub.6 -C.sub.10 -aryl and C.sub.1 -C.sub.3 -alkoxy, PA1 R.sub.3 denotes H, optionally substituted C.sub.1 -C.sub.4 -alkyl, C.sub.6 -C.sub.10 -aryl and C.sub.1 -C.sub.3 -alkoxy nd halogen, PA1 R.sub.4 denotes H, optionally substituted C.sub.1 -C.sub.4 -alkyl and C.sub.1 -C.sub.3 -alkoxy, CN, halogen, SO.sub.2 R.sub.7, COOR.sub.7, SO.sub.2 OR.sub.7, COR.sub.7, SO.sub.2 NR.sub.7 R.sub.8 and CONR.sub.7 R.sub.8, PA1 R.sub.5 denotes NHCOR.sub.9, NHCOOR.sub.9, NHSO.sub.2 R.sub.9 and NHPO(R.sub.9).sub.2, PA1 R.sub.6 denotes CON(R.sub.9).sub.2, NHCOR.sub.9, NHCOOR.sub.9, NHSO.sub.2 R.sub.9, NHCON(Rphd 9).sub.2 and NHSO.sub.2 N(R.sub.9).sub.2, PA1 R.sub.7 denotes optionally substituted C.sub.1 -C.sub.4 -alkyl and C.sub.6 -C.sub.10 -aryl, P…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.