US3630764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-resistant paint
Assignee: Owens Corning
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Filing: 1969-01-08
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Granted: 1971-12-28
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Expires: 1989-01-08
Abstract
Abstract A fire-resistant paint comprising a paint vehicle having uniformly dispersed throughout a powdered glass and a powdered blowing agent for the glass. Films of the paint not only provide a normal protective and decorative function, but remain in position when exposed to temperatures above the softening point of the glass to be transformed into a layer of foamed glass which thereafter acts as a heat insulation.
Inventors
- 👤 Richard F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:11
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/18; C09D5/185
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
14 words
The paint of claim 1 wherein said powdered blowing agent is an inorganic sulfate.
Claim 2
Dependent Claim
25 words
The paint of claim 1 wherein said glass is S glass comprising approximately 65 percent silica, approximately 25 percent alumina, and approximately 10 percent Mg0.
Claim 3
Dependent Claim
25 words
The paint of claim 2 wherein said glass is S glass comprising approximately 65 percent silica, approximately 25 percent alumina, and approximately 10 percent Mg0.
Claim 4
Dependent Claim
40 words
The paint of claim 1 including from 1/2 to 5 percent by weight of inorganic fibers from the group consisting of rock wool fibers, asbestine fibers, silica fibers and glass fibers having a softening point above that of the glass.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |