Patent · US Expired

Process for preparing solid bis-(4-furfurylidenamino-phenyl)-methane

US3945999A · kind A · utility

11Cited by
5References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 24, 1974
Grant dateMar 23, 1976
Priority date—
Expiry dateApr 24, 1994

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03C1/675
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Bis-(4-furfurylidenamino-phenyl)-methane, m.p. 90.degree.-91.degree.C., is made by reacting furfural with bis-(4-aminophenyl)-methane in diethyl ether. It is useful in photography.

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