US5438083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colloidal particle dispersion and water-based coating composition
Assignee: Nippon Paint Co Ltd
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Filing: 1994-01-21
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Granted: 1995-08-01
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Expires: 2014-01-21
Abstract
Abstract A colloidal particle dispersion is disclosed, comprising mainly (1) a fumed silica or fumed aluminum silicate, (2) a colloidizing agent (aid) which is at least one compound selected from the group consisting of a phosphoric acid compound, a molybdic acid compound, a boric acid compound, and a silicic acid compound, and (3) water, and a method for preparing the same is disclosed. Further, a water-based coating composition is disclosed, which comprises a water-based coating composition and incorporated therein a colloidal particle dispersion comprising mainly (1) fumed silica or fumed aluminum silicate, (2) a colloidizing agent (aid) which is at least one compound selected from the group consisting of a phosphoric acid compound, a molybdic acid compound, a boric acid compound, and a silicic acid compound, and (3) water, and a method for preparing the same is disclosed. Furthermore, the coating method with which the above water-based coating composition on a metal substrate is disclosed.
Inventors
- 👤 Masaaki Takimoto
- 👤 Minao Izumi
- 👤 Hisataka Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:52
CPC Classifications
C; C09; C09D; C09D17/00; C09D17/004; C09D5/00; C09D5/08; C09D5/082; C09D5/084
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
57 words
A water-based coating composition which comprises a colloidal particle dispersion comprising mainly (1) a fumed silica or fumed aluminum silicate, (2) a colloidizing agent (aid) which is at least one compound selected from the group consisting of a phosphoric acid compound, a molybdic acid compound, a boric acid compound, and a silicic acid compound, and (3) water.
Claim 2
Dependent Claim
57 words
A water-based coating composition which comprises a colloidal particle dispersion comprising mainly (1) a fumed silica or fumed aluminum silicate, (2) a colloidizing agent (aid) which is at least one compound selected from the group consisting of a phosphoric acid compound, a molybdic acid compound, a boric acid compound, and a silicic acid compound, and (3) water.
Claim 3
Dependent Claim
44 words
The water-based coating composition as claimed in claim 1, wherein the water-based coating composition contains at least one water-soluble or water-dispersible resin selected from the group consisting of an alkyd resin, a polyester resin, an epoxy resin, an urethane resin, and an aminoplast resin.
Claim 4
Dependent Claim
43 words
The water-based coating composition as claimed in claim 1, wherein the water-based coating composition contains at least one emulsified resin selected from the group consisting of a vinyl acetate resin, an acrylic resin, a styrene-butadiene resin, an epoxy resin, and an urethane resin.
Claim 5
Dependent Claim
19 words
The water-based coating composition as claimed in claim 1, wherein the water-based coating composition is an epoxy resin emulsion.
Claim 6
Dependent Claim
41 words
The water-based coating composition as claimed in claim 1, wherein the amount of the colloidal particles is from 15 to 60 parts by weight per 100 parts by weight of the resin in the water-based coating composition on a solid basis.
Claim 7
Dependent Claim
41 words
The water-based coating composition as claimed in claim 1, wherein the amount of the colloidal particles is from 20 to 40 parts by weight per 100 parts by weight of the resin in the water-based coating composition on a solid basis.
Claim 8
Dependent Claim
15 words
The water-based coating composition as claimed in claim 1, which further contains a melamine cyanurate.
Claim 9
Dependent Claim
42 words
The water-based coating composition as claimed in claim 7, wherein the amount of the melamine cyanurate is from 0.05 to 25 parts by weight per 100 parts by weight of the solid components of the water-based coating composition on a solid basis.
Claim 10
Dependent Claim
42 words
The water-based coating composition as claimed in claim 7, wherein the amount of the melamine cyanurate is from 0.5 to 6 parts by weight per 100 parts by weight of the solid components of the water-based coating composition on a solid basis.
Claim 11
Dependent Claim
78 words
The water-based coating composition as claimed in claim 7, wherein the solid/solvent ratio is (20 to 50)/(80 to 50) by weight and the solid components have a resin/colloidal particle/melamine cyanurate ratio of (55 to 90)/(10 to 40)/(0 to 5) by weight, and which contains a crosslinking agent and a functional resin capable of reacting with the crosslinking agent, with the functional resin/crosslinking agent ratio being from 90/10 to 70/30 and the functional resin being an epoxy resin emulsion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-07-31 | 1999-01-30 | 1999-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-31 | 2003-01-30 | 2003-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-31 | 2007-01-30 | 2007-08-01 | $7700.00 | Window Closed / Lapsed |