Patent · US Expired

Transfer of bichromophoric cyano-containing methine dyes

US5139997A · kind A · utility

7Cited by

4References

2Claims

0Family size

Assignee

BASF SE

Inventors

Volker Bach · Neustadt, DE
Karl-Heinz Etzbach · Bischofswerda, DE
Ruediger Sens · Mannheim, DE

Key dates

Filing date	Feb 4, 1991
Grant date	Aug 18, 1992
Priority date	—
Expiry date	Feb 4, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/914
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Bichromophoric methine transfer dyes of the formula ##STR1## where L is a bridge member which does not permit any conjugation of .pi.-electrons between Z and Y, PA0 X is cyano, C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.1 -C.sub.6 -monoalkylcarbamoyl, wherein alkyl may in each case be interrupted by oxygen atoms, or is C.sub.5 -C.sub.7 -cycloalkoxycarbonyl, C.sub.5 -C.sub.7 -monocycloalkylcarbamoyl, phenoxycarbonyl or monophenylcarbamoyl, PA0 Y and Z are each independently of the other aminophenylene, which may be benzo-fused, or heterocyclyl, are transferable from a transfer to a sheet of plastic-coated paper with the aid of an energy source.

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