US4624973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous coating composition
Assignee: Nippon Paint Co Ltd
•
Filing: 1984-07-26
•
Granted: 1986-11-25
•
Expires: 2004-07-26
Abstract
Abstract An aqueous coating composition which comprises at least one aqueous resin selected from polyester, alkyd, acrylic, acryl modified-polyester and acryl modified-alkyd resins, and at least one water-insoluble resinous particles obtained by the polymerization or copolymerization of alpha , beta -ethylenically unsaturated monomers, which is characterized by that said resinous particles are composed of mixture of (A) group of particles having a mean grain diameter of 0.3 DIFFERENCE 6 mu and (B) group of particles having a mean grain diameter of 0.01 DIFFERENCE 0.1 mu , in weight ratio of (A)/(B)=99.9/0.1 DIFFERENCE 40/60 and that the solid weight ratio of said aqueous resin to water insoluble resinous particles is 99/1 DIFFERENCE 15/85. The coating composition is well balanced in application characteristics and in film performance as gloss and surface smoothness and hence is quite useful as a top coat.
Inventors
- 👤 Teruaki Kuwajima
- 👤 Keizou Ishii
- 👤 Hiroshi Miwa
- 👤 Shinichi Ishikura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:37
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20; C08G63/40; C08G63/42; C08G63/46; C08G63/52; C09D157/00; C08L; C08L2205/00; C08L2205/02; C08L2205/14; C08L2205/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
An aqueous coating composition comprising, as a resinous vehicle, at least one water soluble resin selected from the group consisting of a polyester resin, an alkyd resin, an acrylic resin, an acryl modified-polyester resin and an acryl modified-alkyd resin, and at least one water insoluble resin in particulate form obtained by the polymerization or copolymerization of α, β-ethylenically unsaturated monomer(s), which is characterized in that said water insoluble particulate resin is composed of mixture of (A) a group resinous particles having a mean grain diameter of 0.3˜6μ and (B) a group of resinous particles having a mean grain diameter of 0.01˜0.1μ, in a weight ratio of (A)/(B)=99.9/0.1˜40/60, and in that the solid weight ratio of said water soluble resin to the water insoluble resin particles is 99/1˜15/85.
Claim 2
Dependent Claim
127 words
An aqueous coating composition comprising, as a resinous vehicle, at least one water soluble resin selected from the group consisting of a polyester resin, an alkyd resin, an acrylic resin, an acryl modified-polyester resin and an acryl modified-alkyd resin, and at least one water insoluble resin in particulate form obtained by the polymerization or copolymerization of α, β-ethylenically unsaturated monomer(s), which is characterized in that said water insoluble particulate resin is composed of mixture of (A) a group resinous particles having a mean grain diameter of 0.3˜6μ and (B) a group of resinous particles having a mean grain diameter of 0.01˜0.1μ, in a weight ratio of (A)/(B)=99.9/0.1˜40/60, and in that the solid weight ratio of said water soluble resin to the water insoluble resin particles is 99/1˜15/85.
Claim 3
Dependent Claim
18 words
The composition according to claim 1 wherein the mean grain diameter of (A) group resinous particles is 0.4˜5μ.
Claim 4
Dependent Claim
12 words
The composition according to claim 1, wherein the weight ratio of (A)/(B)=99/1˜50/50.
Claim 5
Dependent Claim
23 words
The composition according to claim 1, wherein the solid weight ratio of the water soluble resin to the water insoluble resin is 99/1˜40/60.
Claim 6
Dependent Claim
27 words
The composition according to claim 1 wherein the water insoluble resin particles (A) composed of a double structure having shell and core portions each having different properties.
Claim 7
Dependent Claim
29 words
The composition according to claim 5 wherein the resinous particles (A) are composed of a double structure having a relatively hard shell portion and a relatively soft core portion.
Claim 8
Dependent Claim
29 words
The composition according to claim 5 wherein the resinous particles (A) are composed of a double structure having a relatively soft shell portion and a relatively hard core portion.
Claim 9
Dependent Claim
41 words
The composition according to claim 5 wherein the resinous particles (A) are composed of a double structure having a shell portion with a relatively larger quantity of hydrophilic groups and a core portion with a relatively lesser quantity of hydrophilic groups.
References Cited (Backward Citations)
US3969560A
Cited
US3876578A
Cited
US4069186A
Cited
US4116903A
Cited
US4294735A
Cited
US4254004A
Cited
US4419465A
Cited
US4384056A
Cited
US4427819A
Cited
US4395500A
Cited
US4383055A
Cited
US4426482A
Cited
US4442247A
Cited
US4460732A
Cited
US4474860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |