Patent · US Expired

Sequestrants used in diffusion transfer elements with metallizable dyes

US4551411A · kind A · utility

0Cited by
5References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 28, 1984
Grant dateNov 5, 1985
Priority date—
Expiry dateDec 28, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03C8/00
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Photographic assemblages are described employing metallizable redox dye-releasers and a sequestering agent which is gluconic acid, N[CH.sub.2 --P--(O)(OH).sub.2 ].sub.3 or (HO).sub.2 P(O)--C(CH.sub.3)(OH)--P(O)(OH).sub.2.

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