Patent · US Active

Ink for improving printhead lifetime

US9422441B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Memjet Technology Limited · IE

Inventors

Simon Fielder · Sydney, AU
Michele Gimona · Chatswood, AU
Christopher Barton · Coral Springs, US

Key dates

Filing date	Jun 20, 2014
Grant date	Aug 23, 2016
Priority date	—
Expiry date	Aug 7, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/328
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An inkjet ink includes: an ink vehicle; a colorant; and an acetylenic compound having an alkoxylated hydroxyl group, wherein the hydroxyl group is a primary or secondary hydroxyl group and the acetylenic compound is absent a lipophilic group. Printheads having resistive heater elements exposed to such inks have prolonged lifetimes compared to reference inks.

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