US4001179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-(tetrahalophthalimidocarbonyl)-benzene
Assignee: Great Lakes Chemical Corp
•
Filing: 1975-03-21
•
Granted: 1977-01-04
•
Expires: 1995-03-21
Abstract
Abstract This invention discloses chemical compounds of the formula ##STR1## wherein X is chlorine or bromine and each of Y 1 , Y 2 , Y 3 and Y 4 are hydrogen, chlorine or bromine. Further disclosed are combustible polymers which have incorporated therein a fire retardant amount of 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
2026-11-01 19:31
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: 14
Claim 1
Independent Claim
31 words
A compound of the formula ##STR5## wherein X is chlorine or bromine and each of Y 1 , Y 2 , Y 3 and Y 4 are hydrogen, chlorine or bromine.
Claim 2
Dependent Claim
31 words
A compound of the formula ##STR5## wherein X is chlorine or bromine and each of Y 1 , Y 2 , Y 3 and Y 4 are hydrogen, chlorine or bromine.
Claim 3
Dependent Claim
6 words
The compound of claim 1, 1,4-bis-(3,4,5,6-tetrachlorophthalimidocarbonyl)benzene.
Claim 4
Dependent Claim
6 words
The compound of claim 1, 1,3-bis-(3,4,5,6-tetrabromophthalimidocarbonyl)benzene.
Claim 5
Dependent Claim
6 words
The compound of claim 1, 1,4-bis-(3,4,5,6-tetrachlorophthalimidocarbonyl)-2,6-dichlorobenzene.
Claim 6
Dependent Claim
6 words
The compound of claim 1, 1,4-bis-(3,4,5,6-tetrabromophthalimidocarbonyl)-2,3,5,6-tetrachlorobenzene.
Claim 7
Dependent Claim
6 words
The compound of claim 1, 1,4-bis-(3,4,5,6-tetrachlorophthalimidocarbonyl)-2,3,5,6-tetrabromobenzene.
Claim 8
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 9
Dependent Claim
11 words
The composition of claim 7 wherein the combustible polymer is polystyrene.
Claim 10
Dependent Claim
11 words
The composition of claim 7 wherein the combustible polymer is polyethylene.
Claim 11
Dependent Claim
17 words
The composition of claim 7 wherein the combustible polymer is a terepolymer of acrylonitrile, butadiene and styrene.
Claim 12
Dependent Claim
11 words
The composition of claim 7 wherein the combustible polymer is polypropylene.
Claim 13
Dependent Claim
12 words
The composition of claim 7 wherein the combustible polymer is a polyester.
Claim 14
Dependent Claim
31 words
The composition of claim 7 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)
US2558675A
Cited
US3868388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |