Patent · US Expired

Color photographic material

US6087083A · kind A · utility

2Cited by

2References

9Claims

0Family size

Assignee

Asfa-Gevaert N.V. · BE

Inventors

Peter Bell · Neunburg vorm Wald, DE
Ralf Buscher · Lohmar, DE
Lothar Endres · Bensberg, DE
Lothar Rosenhahn · Neunburg vorm Wald, DE
Rainer Scheerer · Neunburg vorm Wald, DE
Lydia Simon · Uerdingen, DE
Thomas Stetzer · Langenfeld, DE

Key dates

Filing date	Nov 3, 1998
Grant date	Jul 11, 2000
Priority date	—
Expiry date	Nov 3, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/00
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A colour photographic material in which a package of layers is provided which consists, in the stated sequence, of (a) a silver halide-free layer containing colour coupler, (b) a layer containing silver halide and (c) a silver halide-free layer containing colour coupler, wherein at least one of layers (a) and (c) consists to an extent of at least 20 vol. % of a synthetic polymer, is distinguished by an improved grain/sensitivity ratio.

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