HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS

XAVIER ANDRE, (Inventor), Katrien Bernaerts, (Inventor)

Research output: Patent

Abstract

A polymeric dispersant having a hyperbranched polyurethane architecture obtained by reacting a polyisocyanate core with a mixture of a) 40 to 65 mol% of an anchor represented by Formula (I) and/or (II) wherein n represents an integer selected from 0 to 7; and X and Y each independently represent a primary amine group or a hydroxyl group; b) 5 to 25 mol% of a polypropylene oxide crosslinker; c) 15 to 40 mol% of a polypropylene oxide graft; and wherein the amount of the crosslinker and the graft taken together is at least 35 mol%; and wherein 100 mol% of the mixture corresponds with the total amount of isocyanate groups in the polyisocyanate core. Non-aqueous pigment dispersions, inkjet inks and methods for preparing them are also disclosed.

Original languageEnglish
Patent numberCA2767477
IPCC09D 11/ 00 A I
Priority date8/09/10
Publication statusPublished - 17 Mar 2011

Cite this

ANDRE, XAVIER., & Bernaerts, K. (2011). IPC No. C09D 11/ 00 A I. HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS. (Patent No. CA2767477).
ANDRE, XAVIER (Inventor) ; Bernaerts, Katrien (Inventor). / HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS. IPC No.: C09D 11/ 00 A I. Patent No.: CA2767477.
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title = "HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS",
abstract = "A polymeric dispersant having a hyperbranched polyurethane architecture obtained by reacting a polyisocyanate core with a mixture of a) 40 to 65 mol{\%} of an anchor represented by Formula (I) and/or (II) wherein n represents an integer selected from 0 to 7; and X and Y each independently represent a primary amine group or a hydroxyl group; b) 5 to 25 mol{\%} of a polypropylene oxide crosslinker; c) 15 to 40 mol{\%} of a polypropylene oxide graft; and wherein the amount of the crosslinker and the graft taken together is at least 35 mol{\%}; and wherein 100 mol{\%} of the mixture corresponds with the total amount of isocyanate groups in the polyisocyanate core. Non-aqueous pigment dispersions, inkjet inks and methods for preparing them are also disclosed.",
author = "XAVIER ANDRE, and Katrien Bernaerts,",
year = "2011",
month = "3",
day = "17",
language = "English",
type = "Patent",
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ANDRE, XAVIER & Bernaerts, K 2011, HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS, Patent No. CA2767477, IPC No. C09D 11/ 00 A I.

HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS. / ANDRE, XAVIER (Inventor); Bernaerts, Katrien (Inventor).

IPC No.: C09D 11/ 00 A I. Patent No.: CA2767477.

Research output: Patent

TY - PAT

T1 - HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS

AU - ANDRE,, XAVIER

AU - Bernaerts,, Katrien

PY - 2011/3/17

Y1 - 2011/3/17

N2 - A polymeric dispersant having a hyperbranched polyurethane architecture obtained by reacting a polyisocyanate core with a mixture of a) 40 to 65 mol% of an anchor represented by Formula (I) and/or (II) wherein n represents an integer selected from 0 to 7; and X and Y each independently represent a primary amine group or a hydroxyl group; b) 5 to 25 mol% of a polypropylene oxide crosslinker; c) 15 to 40 mol% of a polypropylene oxide graft; and wherein the amount of the crosslinker and the graft taken together is at least 35 mol%; and wherein 100 mol% of the mixture corresponds with the total amount of isocyanate groups in the polyisocyanate core. Non-aqueous pigment dispersions, inkjet inks and methods for preparing them are also disclosed.

AB - A polymeric dispersant having a hyperbranched polyurethane architecture obtained by reacting a polyisocyanate core with a mixture of a) 40 to 65 mol% of an anchor represented by Formula (I) and/or (II) wherein n represents an integer selected from 0 to 7; and X and Y each independently represent a primary amine group or a hydroxyl group; b) 5 to 25 mol% of a polypropylene oxide crosslinker; c) 15 to 40 mol% of a polypropylene oxide graft; and wherein the amount of the crosslinker and the graft taken together is at least 35 mol%; and wherein 100 mol% of the mixture corresponds with the total amount of isocyanate groups in the polyisocyanate core. Non-aqueous pigment dispersions, inkjet inks and methods for preparing them are also disclosed.

M3 - Patent

M1 - CA2767477

ER -

ANDRE, XAVIER, Bernaerts, K, inventors. HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS. C09D 11/ 00 A I. 2011 Mar 17.