Patent · US Expired

Dye precursors for pressure-sensitive recording material

US3985376A · kind A · utility

15Cited by
2References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 13, 1975
Grant dateOct 12, 1976
Priority date—
Expiry dateMar 13, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S428/914
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Use of a 4-(4'-aminophenyl)-pyridine as a dye-forming component for a pressure-sensitive recording material.

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