Patent · US Expired

Ink compositions

US6322619A · kind A · utility

5Cited by
21References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 22, 2000
Grant dateNov 27, 2001
Priority date—
Expiry dateFeb 22, 2020

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09D11/38
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

An ink composition comprised of (1) a vehicle, (2) a mixture of colorants, and (3) a polyquaternary ammonium salt.

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