US4429069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant polyurethane composition
Assignee: SAYTECH Inc A CORP OF
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Filing: 1983-06-15
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Granted: 1984-01-31
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Expires: 2003-06-15
Abstract
Abstract A polymer composition containing a flame retardant amount of tribromocumene. The polymer is preferably polyurethane and may be either foamed or non-foamed.
Inventors
- 👤 David O. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:53
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C17/12; C08; C08K; C08K5/00; C08K5/02; C08K5/03; Y; Y10; Y10S; Y10S521/00; Y10S521/906; Y10S521/907
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
16 words
A polymer composition containing a polyurethane and a flame retardant a flame retardant amount of tribromocumene.
Claim 2
Dependent Claim
16 words
A polymer composition containing a polyurethane and a flame retardant a flame retardant amount of tribromocumene.
Claim 3
Dependent Claim
24 words
A polymer composition of claim 2 wherein said amount of tribromocumene is from about 0.05 to about 40 weight percent of said polymer composition.
Claim 4
Dependent Claim
40 words
A flame retardant, self-extinguishing polyurethane comprising: (a) an organic polyol, (b) sufficient organic polyisocyanate to combine with said polyol to produce polyurethane, (c) a catalyst and (d) a sufficient amount of tribromocumene to impart flame retardant properties to the polyurethane.
Claim 5
Dependent Claim
40 words
A flame retardant, self-extinguishing polyurethane comprising: (a) an organic polyol, (b) sufficient organic polyisocyanate to combine with said polyol to produce polyurethane, (c) a catalyst and (d) a sufficient amount of tribromocumene to impart flame retardant properties to the polyurethane.
Claim 6
Dependent Claim
23 words
A polyurethane of claim 3 wherein said amount of tribromocumene is from about 0.05 to about 40 weight percent of the entire polyurethane.
References Cited (Backward Citations)
US4232085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |