US4144288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sodium tetraborate pentahydrate as a smoke suppressant for styrenic resins
Assignee: Arkema Inc
•
Filing: 1978-01-20
•
Granted: 1979-03-13
•
Expires: 1998-01-20
Abstract
Abstract A composition comprising a styrenic resin admixed with sodium tetraborate pentahydrate and a brominated aromatic compound is provided that is no only flame retarded but also is smoke suppressed.
Inventors
- 👤 Jeffrey D. Miano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02; C08K5/03; C08K3/00; C08K3/38; C08K5/04; C08K5/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
65 words
A flame retarded and smoke suppressed composition consisting essentially of 100 parts of a styrenic resin selected from the group consisting of polystyrene, poly(chlorostyrene), poly(bromostyrene), poly(α-methyl styrene), poly(vinyltoluene), poly(vinylnaphthalene), acrylonitrile-butadiene-styrene terpolymer, styrene-acrylonitrile copolymer, high, low and medium impact polystyrenes, and mixtures thereof admixed with about 1 to 50 parts of a brominated aromatic flame retardant and about 10 to 50 parts of sodium tetraborate pentahydrate.
Claim 2
Dependent Claim
65 words
A flame retarded and smoke suppressed composition consisting essentially of 100 parts of a styrenic resin selected from the group consisting of polystyrene, poly(chlorostyrene), poly(bromostyrene), poly(α-methyl styrene), poly(vinyltoluene), poly(vinylnaphthalene), acrylonitrile-butadiene-styrene terpolymer, styrene-acrylonitrile copolymer, high, low and medium impact polystyrenes, and mixtures thereof admixed with about 1 to 50 parts of a brominated aromatic flame retardant and about 10 to 50 parts of sodium tetraborate pentahydrate.
Claim 3
Dependent Claim
11 words
A composition of claim 1 wherein said styrenic resin is polystyrene.
Claim 4
Dependent Claim
12 words
A composition of claim 1 wherein said styrenic resin is acrylonitrile-butadiene-styrene terpolymer.
Claim 5
Dependent Claim
12 words
A composition of claim 1 wherein said styrenic resin is high-impact polystyrene.
Claim 6
Dependent Claim
13 words
A composition of claim 1 wherein said brominated aromatic flame retardant is 1,2-bis(2,4,6-tribromophenoxy)ethane.
Claim 7
Dependent Claim
14 words
A composition of claim 1 wherein said brominated aromatic flame retardant is decabromodiphenyl oxide.
Claim 8
Dependent Claim
14 words
A composition of claim 1 wherein said brominated aromatic flame retardant is tetrabromophthalic anhydride.
Claim 9
Dependent Claim
18 words
A composition of claim 1 wherein sodium tetraborate pentahydrate is in the amount of 15 to 30 parts.
Claim 10
Dependent Claim
86 words
A process of producing a styrenic resin having smoke suppressed properties comprising adding 100 parts of a styrenic resin selected from the group consisting of polystyrene, poly(chlorostyrene), poly(bromostyrene), poly(α-methyl styrene), poly(vinyltoluene), poly(vinylnaphthalene), acrylonitrile-butadiene-styrene terpolymer, styrene-acrylonitrile copolymer, high, low and medium impact polystyrenes, and mixtures thereof to a mixing vessel along with about 1 to 50 parts of a brominated aromatic flame retardant and about 10 to 50 parts of sodium tetraborate pentahydrate and intimately mixing the mixture to produce a flame retarded and smoke suppressed resin.
Claim 11
Dependent Claim
86 words
A process of producing a styrenic resin having smoke suppressed properties comprising adding 100 parts of a styrenic resin selected from the group consisting of polystyrene, poly(chlorostyrene), poly(bromostyrene), poly(α-methyl styrene), poly(vinyltoluene), poly(vinylnaphthalene), acrylonitrile-butadiene-styrene terpolymer, styrene-acrylonitrile copolymer, high, low and medium impact polystyrenes, and mixtures thereof to a mixing vessel along with about 1 to 50 parts of a brominated aromatic flame retardant and about 10 to 50 parts of sodium tetraborate pentahydrate and intimately mixing the mixture to produce a flame retarded and smoke suppressed resin.
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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) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |