US3967033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-retardant panel construction
Assignee: Ashland LLC
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Filing: 1975-12-22
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Granted: 1976-06-29
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Expires: 1995-12-22
Abstract
Abstract A fire resistant structural panel is provided in form of a sandwich assembly having outer metallic skin surfaces and a core section composed of a thermal barrier layer adjoining at least one side of a layer of a foamed polymeric insulating material, said thermal barrier being a thermoset resinous composition containing homogeneously dispersed colloidal size droplets of water.
Inventors
- 👤 Robert E. Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:03
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/046; B32B15/08; B32B27/00; B32B27/06; B32B27/065; E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0228; B32B2266/0278; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; B32B2607/00; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249987; Y10T428/24999; Y10T428/249994; Y10T428/249995
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
62 words
A fire-resistant insulating structural panel having outer planar metallic skin surfaces and a laterally coextensive inner core assembly of a layer of foamed polymeric material of which at least one side thereof adjoins a thermal barrier layer comprising a solid water-in-oil emulsion wherein the continuous phase is a thermoset polymerization product of an unsaturated linear polyester and a vinyl monomer crosslinking agent.
Claim 2
Dependent Claim
62 words
A fire-resistant insulating structural panel having outer planar metallic skin surfaces and a laterally coextensive inner core assembly of a layer of foamed polymeric material of which at least one side thereof adjoins a thermal barrier layer comprising a solid water-in-oil emulsion wherein the continuous phase is a thermoset polymerization product of an unsaturated linear polyester and a vinyl monomer crosslinking agent.
Claim 3
Dependent Claim
22 words
A structural panel in accordance with claim 1 wherein said thermal barrier layer contains from about 30 to 70 weight percent water.
Claim 4
Dependent Claim
22 words
A structural panel in accordance with claim 2 wherein said thermal barrier layer contains from about 50 to 60 weight percent water.
Claim 5
Dependent Claim
18 words
A structural panel in accordance with claim 3 wherein said metallic skin surfaces are either steel or aluminum.
Claim 6
Dependent Claim
15 words
A structural panel in accordance with claim 4 wherein said polymeric material is foamed polyurethane.
Claim 7
Dependent Claim
15 words
A structural panel in accordance with claim 4 wherein said polymeric material is foamed polystyrene.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |