Patent US4153591A successfully refreshed from Google Patents.
US4153591A
Expired / Lapsed
US
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Coating composition for thick coating
Assignee: Kikusui Chemical Industries Co Ltd
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Filing: 1976-07-09
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Granted: 1979-05-08
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Expires: 1996-07-09
Abstract
Abstract A coating composition for thick coating prepared by adding an aggregate to a coating liquid containing 5 to 40% by weight as SiO2 of a coloidal silica and 3 to 40% by weight of disolved and/or finely dispersed organic polymer, having an SiO2/M2O mole ratio (in which M is a monovalent alkali metal atom) of at least 7, and having a viscosity lower than 100 c.p. at 20 DEG C. when kept in the sealed state at 50 DEG C. for 10 days.
Inventors
- 👤 Akitoshi Yoshida
- 👤 Masaharu Kosaka
- 👤 Shigeki Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:56
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C04; C04B; C04B28/00; C04B28/24; C09D1/00; C09D1/02; C09D1/04; C09D123/00; C09D123/02; C09D123/04; C09D123/08; C09D131/00; C09D131/02; C09D131/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
125 words
A coating composition for thick coating in an amount of from 1 to 20 kg/m 2 comprising a coating liquid containing water, aqueous silica sol, an aqueous dispersion of an organic polymer selected from the group consisting of styrene-butyl acrylate copolymer and ethylenevinyl acetate copolymer and an aggregate, wherein said coating liquid contains from 5 to 40% by weight as SiO 2 of colloidal silica, 3 to 40% by weight of said polymer, a SiO 2 /M 2 O mole ratio, wherein M is an alkali metal atom selected from the group consisting of Na, K and Li, of from 7 to 2000 and a viscosity lower than 100 c.p. at 20° C. when kept in a sealed state at 50° C. for 10 days.
Claim 2
Dependent Claim
125 words
A coating composition for thick coating in an amount of from 1 to 20 kg/m 2 comprising a coating liquid containing water, aqueous silica sol, an aqueous dispersion of an organic polymer selected from the group consisting of styrene-butyl acrylate copolymer and ethylenevinyl acetate copolymer and an aggregate, wherein said coating liquid contains from 5 to 40% by weight as SiO 2 of colloidal silica, 3 to 40% by weight of said polymer, a SiO 2 /M 2 O mole ratio, wherein M is an alkali metal atom selected from the group consisting of Na, K and Li, of from 7 to 2000 and a viscosity lower than 100 c.p. at 20° C. when kept in a sealed state at 50° C. for 10 days.
Claim 3
Dependent Claim
14 words
A coating composition according to claim 1 wherein the polymer is ethylene-vinyl acetate copolymer.
Claim 4
Dependent Claim
15 words
A coating composition according to claim 1, wherein the organic polymer is styrene-butyl acrylate copolymer.
References Cited (Backward Citations)
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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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |