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US4606852A
Expired / Lapsed
US
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Flame retardant polymer compositions
Assignee: Bromine Compounds Ltd
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Filing: 1985-01-09
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Granted: 1986-08-19
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Expires: 2005-01-09
Abstract
Abstract Normally flammable organic polymers are rendered flame retardant by the incorporation of compounds corresponding to the formula: ##STR1## wherein each X is independently Br or Cl. The normally flammable organic polymers are selected from polyolefin, such as polypropylene, epoxy resins, unsaturated polyesters and styrene-based resins. The sulfite ester of tribromo neopentyl alcohol is preferred.
Inventors
- 👤 Avraham Teuerstein
- 👤 Michael Rumack
- 👤 Shaul Yanai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C07; C07C; C07C301/00; Y; Y10; Y10S; Y10S428/00; Y10S428/92
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
27 words
A flame retarded composition comprising a normally flammable organic polymer and a flame retardant reagent having the formula: ##STR3## wherein each X is independently Br or Cl.
Claim 2
Dependent Claim
27 words
A flame retarded composition comprising a normally flammable organic polymer and a flame retardant reagent having the formula: ##STR3## wherein each X is independently Br or Cl.
Claim 3
Dependent Claim
26 words
The composition according to claim 1, containing an amount of 1 to 20 parts by wt. antimony trioxide per 100 parts of a normally flammable polymer.
Claim 4
Dependent Claim
14 words
The composition according to claim 1, wherein the normally flammable organic polymer is polypropylene.
Claim 5
Dependent Claim
15 words
The composition according to claim 1, wherein the normally flammable organic polymer is epoxy resin.
Claim 6
Dependent Claim
15 words
The composition according to claim 1, wherein the normally flammable organic polymer is unsaturated polyester.
Claim 7
Dependent Claim
15 words
The composition according to claim 1, wherein the normally flammable organic polymer is styrene-based resins.
Claim 8
Dependent Claim
14 words
The composition according to claim 1, wherein the normally flammable organic polymer is poly(ethylene-block-propylene).
Claim 9
Dependent Claim
22 words
The composition according to claim 3, containing between 3 and 20 parts of the flame retardant reagent per 100 parts of polypropylene.
Claim 10
Dependent Claim
19 words
The composition according to claim 1, wherein said flame retardant regent is the sulfite ester of tribromo neopentyl alcohol.
Claim 11
Dependent Claim
39 words
The composition according to claim 2, wherein said organic polymer is polypropylene and the composition contains between 3 and 20 parts of the sulfite ester of tribromo neopentyl alcohol as said flame retardant reagent per 100 parts of polypropylene.
Claim 12
Dependent Claim
19 words
The composition according to claim 8, wherein said flame retardant reagent is the sulfite ester of tribromo neopentyl alcohol.
Claim 13
Dependent Claim
19 words
The composition according to claim 4, wherein said flame retardant reagent is the sulfite ester of tribromo neopentyl alcohol.
Claim 14
Dependent Claim
19 words
The composition according to claim 5, wherein said flame retardant reagent is the sulfite ester of tribromo neopentyl alcohol.
Claim 15
Dependent Claim
19 words
The composition according to claim 6, wherein said flame retardant reagent is the sulfite ester of tribromo neopentyl alcohol.
Claim 16
Dependent Claim
19 words
The composition according to claim 7, wherein said flame retardant reagent is the sulfite ester of tribromo neopentyl alcohol.
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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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |