US 2016/0096965 A1 · Phosphate Ester Dispersion Promoting Agent and Dispersion Comprising the Same

Abstract

This disclosure is directed to a phosphate ester dispersion promoting agent and process for the preparation thereof. The present disclosure also relates to a dispersion of a particulate solid comprising the phosphate ester dispersion promoting agent and use of the phosphate ester dispersion promoting agent for dispersing a particulate solid. The phosphate ester has the structure of formula (I): in which R independently represents, at each occurrence, a polyester residue containing in its skeleton optionally at least one ether oxygen atom —O—; and x is 1, or 2.

Claims20

Dependent claims

A dispersion of a particulate solid, comprising a phosphate ester as a dispersion promoting agent, a particulate solid, and a dispersing medium, wherein the phosphate ester has the structure of formula (I):

in which
R independently represents, at each occurrence, a polyester residue containing in its skeleton optionally at least one ether oxygen atom —O—;
and
x is 1, or 2.

1 more element

A process for the preparation of a phosphate ester of formula (I) used as a dispersion promoting agent

in which
R independently represents, at each occurrence, a polyester residue containing in its skeleton optionally at least one ether oxygen atom —O—;
and
x is 1 or 2,
the process comprising:
(i) providing at least one hydroxyl compound containing a free carboxylic acid group represented by the general formula (II)
in which
R is defined as above;
and
(ii) performing esterification of the hydroxyl compound with a phosphating agent, thereby forming the phosphate ester used as a dispersion promoting agent.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/966,136Filed 11 Dec 2015

Priority

CN 201310233774.413 Jun 2013

Published

7 Apr 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

C08G 63/692
Polyesters containing atoms other than carbon, hydrogen and oxygen: containing phosphorus
C07F 9/091
Esters of phosphoric acids: with hydroxyalkyl compounds with further substituents on alkyl
C07F 9/096
Compounds containing the structure P-O-acyl, P-O-heteroatom, P-O-CN: compounds containing the structure P-O-C-
C09D 5/02
Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced ; Filling pastes:…

Phosphate Ester Dispersion Promoting Agent and Dispersion Comprising the Same

Life of this patent

Phosphate Ester Dispersion Promoting Agent and Dispersion Comprising the Same

Life of this patent

Abstract

Claims20