Hyperbranched polymeric dispersants and non-aqueous pigment dispersions

XAVIER ANDRE (Inventor), Katrien Bernaerts (Inventor)

Research output: Patent

Abstract

The invention discloses 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 numberCN102498143
IPCC09D 11/ 00 A I
Priority date8/09/10
Publication statusPublished - 13 Jun 2012

Cite this

ANDRE, XAVIER., & Bernaerts, K. (2012). IPC No. C09D 11/ 00 A I. Hyperbranched polymeric dispersants and non-aqueous pigment dispersions. (Patent No. CN102498143).
ANDRE, XAVIER (Inventor) ; Bernaerts, Katrien (Inventor). / Hyperbranched polymeric dispersants and non-aqueous pigment dispersions. IPC No.: C09D 11/ 00 A I. Patent No.: CN102498143.
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title = "Hyperbranched polymeric dispersants and non-aqueous pigment dispersions",
abstract = "The invention discloses 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 = "2012",
month = "6",
day = "13",
language = "English",
type = "Patent",
note = "CN102498143; C09D 11/ 00 A I",

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ANDRE, XAVIER & Bernaerts, K 2012, Hyperbranched polymeric dispersants and non-aqueous pigment dispersions, Patent No. CN102498143, 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.: CN102498143.

Research output: Patent

TY - PAT

T1 - Hyperbranched polymeric dispersants and non-aqueous pigment dispersions

AU - ANDRE, XAVIER

AU - Bernaerts, Katrien

PY - 2012/6/13

Y1 - 2012/6/13

N2 - The invention discloses 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 - The invention discloses 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 - CN102498143

ER -

ANDRE XAVIER, Bernaerts K, inventors. Hyperbranched polymeric dispersants and non-aqueous pigment dispersions. C09D 11/ 00 A I. 2012 Jun 13.