US4118325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireproofing composition
Assignee: ConocoPhillips Co
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Filing: 1976-12-27
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Granted: 1978-10-03
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Expires: 1996-12-27
Abstract
Abstract A fireproofing composition comprised of a low density matrix material, such as rigid foamed sodium silicate, having an expandable hydrated mineral material such as unexpanded vermiculite or unexpanded perlite incorporated therein.
Inventors
- 👤 Donald E. Becker
- 👤 Gary D. Achenbach
- 👤 George W. Stuever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:04
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
74 words
A fireproofing composition comprising a low density foamed alkali metal silicate matrix having incorporated therein, on a dry weight basis, from 5 to 35 weight percent of an unexpanded particulate mineral material selected from the group consisting of unexpanded vermiculite and unexpanded perlite, said material having a particle size range of from 6 to 200 mesh and being capable of expanding to from 5 to 20 times its unexpanded volume upon exposure to heat.
Claim 2
Dependent Claim
74 words
A fireproofing composition comprising a low density foamed alkali metal silicate matrix having incorporated therein, on a dry weight basis, from 5 to 35 weight percent of an unexpanded particulate mineral material selected from the group consisting of unexpanded vermiculite and unexpanded perlite, said material having a particle size range of from 6 to 200 mesh and being capable of expanding to from 5 to 20 times its unexpanded volume upon exposure to heat.
Claim 3
Dependent Claim
40 words
A fireproofing composition comprising a low density foamed alkali metal silicate matrix having incorporated therein, on a dry weight basis, from 5 to 35 weight percent of unexpanded vermiculite having a particle size range of from 6 to 200 mesh.
Claim 4
Dependent Claim
40 words
A fireproofing composition comprising a low density foamed alkali metal silicate matrix having incorporated therein, on a dry weight basis, from 5 to 35 weight percent of unexpanded vermiculite having a particle size range of from 6 to 200 mesh.
Claim 5
Dependent Claim
14 words
The composition of claim 2 wherein said low density matrix comprises foamed sodium silicate.
Claim 6
Dependent Claim
47 words
A composition comprising, in parts by weight per 100 parts of said composition, the following: ______________________________________
Ingredients Parts by Weight
______________________________________
Aqueous sodium silicate
(38 weight percent sodium
silicate in water) 60-80
Glass fibers 1-3
Sodium silicofluoride 8-16
Unexpanded vermiculte 3-25
Formamide 0.5-1.5
Foaming agent 0.2-2.0
______________________________________
Claim 7
Dependent Claim
47 words
A composition comprising, in parts by weight per 100 parts of said composition, the following: ______________________________________
Ingredients Parts by Weight
______________________________________
Aqueous sodium silicate
(38 weight percent sodium
silicate in water) 60-80
Glass fibers 1-3
Sodium silicofluoride 8-16
Unexpanded vermiculte 3-25
Formamide 0.5-1.5
Foaming agent 0.2-2.0
______________________________________
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) | 1981-10-02 | 1982-04-03 | 1982-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-02 | 1986-04-03 | 1986-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-02 | 1990-04-03 | 1990-10-03 | $7700.00 | Window Closed / Lapsed |