Claims
- 1. A pigment dispersing agent consisting of a product obtained by reacting
- (1) an amine compound having (a) at least one amino group or (b) at least two imino groups or (c) at least one amino group and at least one imino group, a weight average molecular weight of about 60 to about 30,000, and an amine value of about 50 to about 2,000 mg KOH/mg.
- (2) an acrylic polymer having a weight average molecular weight of about 2,000 to about 100,000, a hydroxyl value of about 5 to about 200, and one of a glycidyl group, an acetoacetoxy group, and a cyclocarbonate group in a functional group number of about 0.7 to about 3.0 on average per molecule as a side chain, provided that 1 mol of glycidyl group is deemed to be 1 mol of hydroxyl group when calculating the hydroxyl value, and
- (3) a polyester resin having (a) a weight average molecular weight of about 1,000 to about 30,000, (b) a terminal isocyanate group or terminal acetoacetoxy group, and (c) one of the formula selected from the group consisting of ##STR16## wherein R.sub.1 is a C.sub.1 -c.sub.18 aliphatic or alicyclic hydrocarbon group or a C.sub.6 -C.sub.18 aromatic hydrocarbon group,
- R.sub.2 is a C.sub.1 -C.sub.7 alkylene group,
- R.sub.3 is a C.sub.6 -C.sub.20 residual group of an aliphatic, alicyclic, or aromatic diisocyanate group,
- R.sub.4 is a C.sub.2 -C.sub.20 residual group of an aliphatic or alicyclic, anhydride or a C.sub.6 -C.sub.20 residual group of an aromatic acid anhydride,
- R.sub.5 and R.sub.6 are each a hydrogen atom, a C.sub.1 -C.sub.20 aliphatic hydrocarbon group, a C.sub.1 -C.sub.20 alicyclic hydrocarbon group, a C.sub.6 -C.sub.20 aromatic hydrocarbon group, a --CH.sub.2 --O--R.sub.1 group, or a --CH.sub.2 --OCO--R.sub.1 group where R.sub.1 is as previously defined, and
- n is an integer of at least 1,
- the mol ratio of the amino compound to the acrylic polymer to the polyester resin being from 1:1:1 to 1:40:40, and
- the bridge between the amine compound amino and/or imino nitrogen and the acrylic copolymer being ##STR17## and ##STR18## depending on whether the copolymer contains a glycidyl group, an acetoacetoxy group, or a cyclocarbonate group, respectively.
- 2. The pigment dispersing agent of claim 1 wherein the acrylic copolymer contains a glycidyl group.
- 3. The pigment dispersing agent of claim 1 wherein the acrylic copolymer contains an acetoacetoxy group.
- 4. The pigment dispersing agent of claim 1 wherein the acrylic copolymer contains a cyclocarbonate group.
Priority Claims (6)
Number |
Date |
Country |
Kind |
63-210789 |
Aug 1988 |
JPX |
|
1-119666 |
May 1989 |
JPX |
|
1-119667 |
May 1989 |
JPX |
|
1-155649 |
Jun 1989 |
JPX |
|
1-155650 |
Jun 1989 |
JPX |
|
1-184497 |
Jul 1989 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/395,495 filed Aug. 18, 1989, now U.S. Pat. No. 5,100,969.
US Referenced Citations (8)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0180051 |
May 1986 |
EPX |
208041 |
Jan 1987 |
EPX |
0295789 |
Dec 1988 |
EPX |
51-18736 |
Feb 1976 |
JPX |
1339930 |
Dec 1973 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Progress in organic coatings, vol. 5 (1977), pp. 237-243. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
395495 |
Aug 1989 |
|