US3953397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(halobenzoyl)-3,4-dibromohexahydrophthalimides
Assignee: Great Lakes Chemical Corp
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Filing: 1975-04-14
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Granted: 1976-04-27
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Expires: 1995-04-14
Abstract
Abstract This invention discloses chemical compounds of the formula ##SPC1## Wherein Y is chlorine or bromine and n is an integer from 2 to 5. Further disclosed are fire retardant compositions comprising a combustible polymer and a compound of the foregoing description.
Inventors
- 👤 Sidney B. Richter
- 👤 Glendon D. Kyker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:37
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
20 words
A compound of the formula ##SPC5##wherein Y is chlorine or bromine and n is an integer from 2 to 5.
Claim 2
Dependent Claim
20 words
A compound of the formula ##SPC5##wherein Y is chlorine or bromine and n is an integer from 2 to 5.
Claim 3
Dependent Claim
6 words
The compound of claim 1, N-(2,5-dichlorobenzoyl)-3,4-dibromohexahydrophthalimide.
Claim 4
Dependent Claim
6 words
The compound of claim 1, N-(2,3,5-trichlorobenzoyl)-3,4-dibromohexahydrophthalimide.
Claim 5
Dependent Claim
6 words
The compound of claim 1, N-(2,5-dibromobenzoyl)-3,4-dibromohexahydrophthalimide.
Claim 6
Dependent Claim
6 words
The compound of claim 1, N-(2,3,5-tribromobenzoyl)-3,4-dibromohexahydrophthalimide.
Claim 7
Dependent Claim
20 words
A fire retardant polymeric composition comprising a combustible polymer and a fire retarding amount of a compound of claim 1.
Claim 8
Dependent Claim
11 words
The composition of claim 6 wherein the combustible polymer is polystyrene.
Claim 9
Dependent Claim
11 words
The composition of claim 6 wherein the combustible polymer is polyethylene.
Claim 10
Dependent Claim
17 words
The composition of claim 6 wherein the combustible polymer is a terepolymer of acrylonitrile, butadiene and styrene.
Claim 11
Dependent Claim
11 words
The composition of claim 6 wherein the combustible polymer is polyester.
Claim 12
Dependent Claim
31 words
The composition of claim 6 which contains from about 1 to about 35% by weight of an adjuvant selected from the group consisting of antimony trioxide, zinc borate and lead arsenate.
References Cited (Backward Citations)
US3903109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |