Patent · US Active

Aqueous polyurethane resin dispersion

US11708505B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

Agfa NV · BE

Inventors

Hubertus Van Aert · Pulderbos, BE
Ellen Bertels · Mortsel, BE

Key dates

Filing date	Nov 27, 2018
Grant date	Jul 25, 2023
Priority date	—
Expiry date	Dec 14, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2003/2241
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An aqueous polyurethane resin having a cationic group in a side chain thereof is obtainable by reacting a polyester polyol, a polyisocyanate, and a diol containing a quaternary N-atom or amino group, the quaternary N-atom or amino group being not present in the carbon chain between the two hydroxyl groups of the diol. The polyester polyol is obtained by reacting an aromatic polycarboxylic acid and a polyol. The polyurethane resin is suitable as a resin in treatment liquids for inkjet printing.

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