Patent US2978620A successfully refreshed from Google Patents.
Patent US4499217A successfully refreshed from Google Patents.
US4499217A
Expired / Lapsed
US
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Thermo-setting resinous liquid compositions
Assignee: JGC Catalysts and Chemicals Ltd
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Filing: 1982-01-29
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Granted: 1985-02-12
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Expires: 2002-01-29
Abstract
Abstract A liquid composition comprising a dispersion of silica colloid in alcohol and a thermo-setting resin. The dry film of this composition is superior in chemical resistance, surface hardness, abrasion resistance, heat resistance and adhesiveness to a substrate.
Inventors
- 👤 Masaru Yoshimura
- 👤 Sumio Saitoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:29
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/70; G03F7/70216; C; C08; C08K; C08K3/00; C08K3/34; C08K3/36
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
54 words
An essentially water-free liquid composition comprising a composite formed from (a) an essntially water-free dispersion of silica colloid in alcohol, said silica having particle diameter of between about 10 and 50 mμ, and (b) a thermo-setting resin selected from the group consisting of acrylic, acryl-melamine, acryl-epoxy, acryl-urethane, melamine-alkyd, epoxy, epoxy-phenolic, phenolic and silicone resins.
Claim 2
Dependent Claim
54 words
An essentially water-free liquid composition comprising a composite formed from (a) an essntially water-free dispersion of silica colloid in alcohol, said silica having particle diameter of between about 10 and 50 mμ, and (b) a thermo-setting resin selected from the group consisting of acrylic, acryl-melamine, acryl-epoxy, acryl-urethane, melamine-alkyd, epoxy, epoxy-phenolic, phenolic and silicone resins.
Claim 3
Dependent Claim
40 words
A liquid composition according to claim 1 wherein the quantity of said silica present in the solid content of said composition is 1 to 80 wt.% and the quantity of said thermosetting resin present therein is 99 to 20 wt.%.
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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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |