US4191675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire spreading inhibitor composition
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1977-03-16
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Granted: 1980-03-04
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Expires: 1997-03-16
Abstract
Abstract A fire spreading inhibitor composition comprising about 20 to about 40% by weight of an emulsion of a synthetic resin, about 1 to about 15% by weight of non-fusible organic fibers, about 20 to about 70% by weight of an inorganic powder at least about 50% of which is clay and/or zinc borate, and about 5 to 20% by weight of a halogenated hydrocarbon, all percentages being based on the dry weight as a coating.
Inventors
- 👤 Yutaka Inagaki
- 👤 Hironaga Matsubara
- 👤 Kojiro Ishise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:35
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/14; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
A fire spreading inhibitor composition comprising about 20 to about 40% by weight of an emulsion of a synthetic resin, about 1 to about 15% by weight of infusible organic phenolic resin fibers which exhibit a fire spreading inhibition effect, about 20 to about 70% by weight of an inorganic powder at least about 50% of which is clay and/or zinc borate, and about 5 to 20% by weight of a halogenated hydrocarbon flame retardant, all percentages being based on the dry weight as a coating.
Claim 2
Dependent Claim
86 words
A fire spreading inhibitor composition comprising about 20 to about 40% by weight of an emulsion of a synthetic resin, about 1 to about 15% by weight of infusible organic phenolic resin fibers which exhibit a fire spreading inhibition effect, about 20 to about 70% by weight of an inorganic powder at least about 50% of which is clay and/or zinc borate, and about 5 to 20% by weight of a halogenated hydrocarbon flame retardant, all percentages being based on the dry weight as a coating.
Claim 3
Dependent Claim
14 words
The composition of claim 1, wherein the synthetic resin is an ethylene/vinyl acetate copolymer.
Claim 4
Dependent Claim
26 words
The composition of claim 1, wherein said synthetic resin emulsion is an aqueous emulsion of polyvinylacetate, an ethylene/vinylacetate copolymer, a vinylacetate/vinylchloride copolymer or an ethylene/vinylacetate/vinylchloride terpolymer.
Claim 5
Dependent Claim
17 words
The composition of claim 1, wherein said halogenated hydrocarbon flame-retardant is chlorinated paraffin, chlorinated naphthalene or hexabromobenzene.
Claim 6
Dependent Claim
20 words
A fire spreading inhibitor composition as claimed in claim 1, wherein at least 50% of said inorganic powder is clay.
Claim 7
Dependent Claim
21 words
A fire spreading inhibitor composition as claimed in claim 1, wherein at least 50% of said inorganic powder is zinc borate.
Claim 8
Dependent Claim
23 words
A fire spreading inhibitor composition as claimed in claim 1, wherein at least 50% of said inorganic powder is clay and zinc borate.
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) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |