US5100969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment dispersing agent
Assignee: NOF Corp
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Filing: 1989-08-18
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Granted: 1992-03-31
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Expires: 2009-08-18
Abstract
Abstract A pigment dispersing agent for paints is a combination of particular amine compound and particular acrylic copolymer or a combination of particular amine compound, particular acrylic copolymer and particular polyester resin. This pigment dispersing agent is applicable to both acrylic resin series paints and polyester resin series paints.
Inventors
- 👤 Toshio Yamamoto
- 👤 Yoshiaki Matsukura
- 👤 Osamu Ohe
- 👤 Hisao Ogawa
- 👤 Masahiro Ishidoya
- 👤 Yoshiro Matsubara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:35
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/066; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08G; C08G81/00; C08G81/02; C08G81/024; C09D133/068; C09D7/00; C09D7/40; C09D7/45; C08L; C08L33/00; C08L33/04; C08L33/06; C08L67/00; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
174 words
A pigment dispersing agent consisting of a product obtained by reacting an amine compound having at least one amino group and/or 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/g with an acrylic copolymer having a weight average molecular weight of about 2,000 to about 100,000 a hydroxy 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, the mol ratio of the amine compound to the acrylic copolymer being from 1:1 to 1:40 and the bridge between the amine compound amino and/or imino nitrogen and the acrylic copolymer being ##STR14## depending on whether the copolymer contains a glycidyl group, an acetoacetoxy group, or a cyclocarbonate group, respectively.
Claim 2
Dependent Claim
174 words
A pigment dispersing agent consisting of a product obtained by reacting an amine compound having at least one amino group and/or 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/g with an acrylic copolymer having a weight average molecular weight of about 2,000 to about 100,000 a hydroxy 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, the mol ratio of the amine compound to the acrylic copolymer being from 1:1 to 1:40 and the bridge between the amine compound amino and/or imino nitrogen and the acrylic copolymer being ##STR14## depending on whether the copolymer contains a glycidyl group, an acetoacetoxy group, or a cyclocarbonate group, respectively.
Claim 3
Dependent Claim
15 words
The pigment dispersing agent of claim 1 wherein the acrylic copolymer contains a glycidyl group.
Claim 4
Dependent Claim
15 words
The pigment dispersing agent of claim 1 wherein the acrylic copolymer contains an acetoacetoxy group.
Claim 5
Dependent Claim
15 words
The pigment dispersing agent of claim 1 wherein the acrylic copolymer contains a cyclocarbonate group.
References Cited (Backward Citations)
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US4032698A
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JPS5118736A
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US4647647A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-31 | 1995-09-30 | 1996-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-31 | 1999-09-30 | 2000-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-31 | 2003-09-30 | 2004-03-31 | $7700.00 | Window Closed / Lapsed |