Patent · US Expired

Ink jet inks containing emulsion polymer additives stabilized with structured polymers

US6020400A · kind A · utility

20Cited by

5References

8Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Waifong Liew Anton · Wilmington, US
Milan Bohuslav Bednarek · Wilmington, US
Robert P. Held · Englishtown, US
Sheau-Hwa Ma · West Chester, US
Joseph E. Reardon · Wilmington, US
Arthur C. Shor · Concordville, US
Harry J. Spinelli · Wilmington, US
Soodabeh Tronson · Menlo Park, US

Key dates

Filing date	Dec 27, 1996
Grant date	Feb 1, 2000
Priority date	—
Expiry date	Dec 27, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S260/38
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Inks for ink jet printers containing an aqueous carrier medium; a pigment; a polymeric dispersant; and an emulsion polymer additive stabilized with a structured polymer are stable, have low viscosity, exhibit excellent print quality, provide excellent smear resistance after drying, have good decap and crusting time, and also demonstrate good charging stability when used in continuous flow printers.

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