US4728463A
Expired / Lapsed
US
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Brominated fire retardant composition
Assignee: Albemarle Corp
•
Filing: 1986-08-18
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Granted: 1988-03-01
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Expires: 2006-08-18
Abstract
Abstract Brominated styrene-maleate copolymer containing at least 50 weight percent bromine and its use as a fire retardant.
Inventors
- 👤 Burton J. Sutker
- 👤 Gen-Shing Ti
- 👤 Mo A. Khuddus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:28
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/14; C08; C08F; C08F8/00; C08F8/18; C08F8/20; C08K; C08K5/00; C08K5/02; C08K5/03; C08L; C08L51/00; C08L51/04; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L2201/00; C08L2201/02; Y; Y10; Y10S; Y10S260/00; Y10S260/24; Y10S521/00; Y10S521/906; Y10S521/907
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
18 words
An organobromine fire retardant comprising a brominated styrene-maleate copolymer which contains in excess of 60 weight percent bromine.
Claim 2
Dependent Claim
18 words
An organobromine fire retardant comprising a brominated styrene-maleate copolymer which contains in excess of 60 weight percent bromine.
Claim 3
Dependent Claim
13 words
A fire retardant of claim 1 wherein said maleate is a maleate ester.
Claim 4
Dependent Claim
13 words
A fire retardant of claim 2 wherein said ester is a methyl ester.
Claim 5
Dependent Claim
13 words
A fire retardant of claim 1 wherein said maleate is a maleate salt.
Claim 6
Dependent Claim
14 words
A fire retardant of claim 4 wherein said salt is an alkali metal salt.
Claim 7
Dependent Claim
12 words
A fire retardant of claim 5 wherein said alkali metal is sodium.
Claim 8
Dependent Claim
14 words
A fire retardant of claim 1 wherein said copolymer is a styrene-maleic anhydride copolymer.
Claim 9
Dependent Claim
27 words
Organic material normally susceptible to burning in the presence of air and an ignition source containing a fire retardant amount of an organobromine compound of claim 1.
Claim 10
Dependent Claim
12 words
A composition of claim 8 wherein said organic material is an organopolymer.
Claim 11
Dependent Claim
19 words
A composition of claim 9 wherein said organopolymer is a polymer of one or more monomers having ethylenic unsaturation.
Claim 12
Dependent Claim
11 words
A composition of claim 10 wherein said polymer is a polystyrene.
Claim 13
Dependent Claim
14 words
A composition of claim 11 wherein said polystyrene is a rubber-modified high impact polystyrene.
Claim 14
Dependent Claim
12 words
A composition of claim 10 wherein said polymer is an acrylonitrile-butadiene-styrene copolymer.
Claim 15
Dependent Claim
13 words
A composition of claim 10 wherein said organopolymer is a styrene-maleic anhydride copolymer.
Claim 16
Dependent Claim
11 words
A composition of claim 9 wherein said organopolymer is a polyester.
Claim 17
Dependent Claim
11 words
A composition of claim 9 wherein said organopolymer is a polyurethane.
Claim 18
Dependent Claim
12 words
A composition of claim 9 wherein said organopolymer is a polyphenylene ether.
Claim 19
Dependent Claim
13 words
A composition of claim 17 wherein said polyphenylene ether is a poly-2,6-dimethylphenylene ether.
Claim 20
Dependent Claim
17 words
A composition of claim 18 wherein said poly-2,6-dimethylphenylene ether is modified by the inclusion of a rubber.
References Cited (Backward Citations)
US3966843A
Cited
US4032509A
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US4048263A
Cited
US4051311A
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US4108943A
Cited
US4544682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |