US3923734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retardant compositions
Assignee: Cities Service Oil Co
•
Filing: 1973-05-11
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Granted: 1975-12-02
•
Expires: 1993-05-11
Abstract
Abstract WHEREIN Q is methylene or oxygen, R is hydrogen or an alkyl group containing 1-5 carbons, R'' is hydrogen or methyl, R'''' is an organic group containing 1-15 carbons, and n is 0 or 1. Normally flammable organic polymers are rendered flame-retardant by the incorporation of compounds corresponding to the formula:
Inventors
- 👤 Jr Anderson O Dotson
- 👤 Jack Newcombe
- 👤 Lionel T Wolford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:33
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D209/56; C07D209/58; C07D209/72; C07D209/76; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
31 words
A COMPOSITION COMPRISING (A) A NORMALLY FLAMMABLE ORGANIC POLYMER, (B) ANTIMONY TRIOXIDE, AND (C) A FLAME RETARDANT HAVING A BROMINE CONTENT OF AT LEAST ABOUT 35% AND CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
31 words
A COMPOSITION COMPRISING (A) A NORMALLY FLAMMABLE ORGANIC POLYMER, (B) ANTIMONY TRIOXIDE, AND (C) A FLAME RETARDANT HAVING A BROMINE CONTENT OF AT LEAST ABOUT 35% AND CORRESPONDING TO THE FORMULA:
Claim 3
Dependent Claim
31 words
A composition comprising (A) a normally flammable organic polymer, (B) antimony trioxide, and (C) a flame retardant having a bromine content of at least about 35% and corresponding to the formula:
Claim 4
Dependent Claim
31 words
A composition comprising (A) a normally flammable organic polymer, (B) antimony trioxide, and (C) a flame retardant having a bromine content of at least about 35% and corresponding to the formula:
Claim 5
Dependent Claim
13 words
The composition of claim 2 wherein the flame retardant corresponds to the formula:
Claim 6
Dependent Claim
13 words
The composition of claim 2 wherein the flame retardant corresponds to the formula:
Claim 7
Dependent Claim
13 words
The composition of claim 2 wherein the flame retardant corresponds to the formula:
Claim 8
Dependent Claim
13 words
The composition of claim 2 wherein the flame retardant corresponds to the formula:
Claim 9
Dependent Claim
13 words
The composition of claim 2 wherein the flame retardant corresponds to the formula:
Claim 10
Dependent Claim
17 words
The composition of claim 2 wherein the normally flammable polymer is a polymer of an unsaturated hydrocarbon.
Claim 11
Dependent Claim
12 words
The composition of claim 2 wherein the normally flammable polymer is polypropylene.
References Cited (Backward Citations)
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US2028715A
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US2576080A
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US3455950A
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US3748340A
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US3624024A
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US3734758A
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US3786023A
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |