Patent · US Active

Radiation curable polyurethane resin for ink jet ink

US11542393B2 · kind B2 · utility

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0References

19Claims

0Family size

Assignee

Agfa NV · BE

Inventors

Hubertus Van Aert · Pulderbos, BE
Ellen Bertels · Mortsel, BE
Johan Loccufier · Zwijnaarde, BE
Sara Matheussen · Mortsel, BE

Key dates

Filing date	Nov 29, 2018
Grant date	Jan 3, 2023
Priority date	—
Expiry date	Sep 9, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/54
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A radiation curable polyurethane resin includes an ionic group, a polyalkylene oxide in a side chain thereof, and a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group. The polyurethane resin is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing an ionic group, a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group, and a polyisocyanate. The polyester polyol is obtained by reacting a polycarboxylic acid and a polyol. The radiation curable polyurethane resin can be used as binder in an aqueous ink jet ink.

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