Metal fine particle dispersant, metal fine particle dispersion liquid, and cured film

Patent metadata

Field	Value
Publication number	US-9546234-B2
Application number	US-201414770677-A
Country	US
Kind code	B2
Filing date	Jan 16, 2014
Priority date	Feb 28, 2013
Publication date	Jan 17, 2017
Grant date	Jan 17, 2017

Abstract

A metal fine particle dispersant is obtained by reaction of a polymer (a) containing a first reactive functional group, an ionic group to be absorbed to metal fine particles, and a polyoxyalkylene side chain with a compound (b) containing a second reactive functional group to be bonded to the first reactive functional group and an active energy ray curable group to be cured by an active energy ray. A metal fine particle dispersion liquid containing the metal fine particle dispersant, metal fine particles, and a dispersion medium is prepared. The metal fine particle dispersion liquid is cured, thereby obtaining a cured film.

First claim

The invention claimed is:

1. A metal fine particle dispersant obtained by reaction of a polymer (a) with a compound (b), wherein
the polymer (a) contains
a first reactive functional group,
an ionic group to be absorbed to metal fine particles, and
a polyoxyalkylene side chain and
the compound (b) contains
a second reactive functional group to be bonded to the first reactive functional group and
an active energy ray curable group to be cured by an active energy ray,
the polymer (a) is obtained by allowing
a first reactive functional group-containing monomer containing the first reactive functional group,
an ionic group-containing monomer containing the ionic group,
a polyoxyalkylene group-containing monomer containing a polyoxyalkylene group, and
a copolymerizable monomer copolymerizable with these to react and
with respect to 100 parts by mass of the total amount of the first reactive functional group-containing monomer, the ionic group-containing monomer, the polyoxyalkylene group-containing monomer, and the copolymerizable monomer,
the mixing ratio of the first reactive functional group-containing monomer is 1 part by mass or more and 35 parts by mass or less;
the mixing ratio of the ionic group-containing monomer is 1 part by mass or more and 20 parts by mass or less; and
the mixing ratio of the polyoxyalkylene group-containing monomer is 0.1 parts by mass or more and 50 parts by mass or less.

2. The metal fine particle dispersant according to claim 1 , wherein
the first reactive functional group is at least one kind selected from the group consisting of a hydroxyl group, a glycidyl group, an isocyanate group, a carboxyl group, and a phosphate group and
the second reactive functional group is at least one kind selected from the group consisting of an isocyanate group, a carboxyl group, a hydroxyl group, a glycidyl group, and a phosphate group.

3. The metal fine particle dispersant according to claim 1 , wherein
the ionic group is at least one kind selected from the group consisting of a carboxyl group, a tertiary amino group, a quaternary ammonium group, and a phosphate group.

4. The metal fine particle dispersant according to claim 1 , wherein
the polymer (a) is an acrylic polymer.

5. The metal fine particle dispersant according to claim 1 , wherein
the copolymerizable monomer contains
a saturated alicyclic group-containing monomer containing a saturated alicyclic group composed of two or more rings and
with respect to 100 parts by mass of the total amount of the first reactive functional group-containing monomer, the ionic group-containing monomer, the polyoxyalkylene group-containing monomer, and the copolymerizable monomer,
the mixing ratio of the saturated alicyclic group-containing monomer is 0.1 parts by mass or more and 50 parts by mass or less.

6. A metal fine particle dispersion liquid containing:
the metal fine particle dispersant according to claim 1 ,
metal fine particles, and
a dispersion medium.

7. A cured film obtained by curing of a metal fine particle dispersion liquid, wherein
the metal fine particle dispersion liquid contains:
the metal fine particle dispersant according to claim 1 ,
metal fine particles, and
a dispersion medium.

Assignees

• Harima Chemicals Inc

Inventors

• Kitajima Yutaka
• Harada Tetsuya
• Sasakura Keiji

Classifications

• C08L33/14

  of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen · CPC title

• C08F220/281

  and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate · CPC title

• C09D133/14

  of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title

• C08K2003/2244

  of zirconium · CPC title

• C08K2003/2237

  of titanium · CPC title