Patent · US Active

Aqueous ink compositions and method of preparing same

US9133355B2 · kind B2 · utility

11Cited by

13References

20Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Or Brandstein · San Diego, US
Eytan Cohen · Raanana, IL
Ran Vilk · Kiryat Ono, IL

Key dates

Filing date	Mar 30, 2011
Grant date	Sep 15, 2015
Priority date	—
Expiry date	Apr 7, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/322
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An aqueous ink composition includes at least 60% water by weight, an acrylic latex polymer suspension, a polyurethane suspension, a polyethylene wax suspension, and an organic solvent that comprises about 10% to about 30% of the ink composition. In methods for preparing an aqueous ink composition, a combination of the aforementioned components is provided. The combination is subjected to conditions under which the ink composition becomes substantially uniform and then the combination is subjected to filtration.

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