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US4127559A
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Flame-retardant polymer composition
Assignee: Cities Service Co
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Filing: 1972-08-18
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Granted: 1978-11-28
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Expires: 1992-08-18
Abstract
Abstract A normally flammable organic polymer is rendered flame retardant by the incorporation of a compound corresponding to the formula: <IMAGE> wherein X is chloro or bromo, Q is halo, hydrogen, or a hydrocarbyl or hydrocarbyloxy group, and Z is a divalent saturated polybromocycloalkylene group containing 5-16 carbon atoms and 2-6 bromine atoms. Such flame retardants include, e.g., 5,6-dibromo-1,10,11,12,13,13-hexachlorotricyclo[8.2.1.02,9]tridecene-11, i.e., the dibrominated 1:1 Diels-Alder adduct of hexachlorocyclopentadiene and cyclooctadiene-1,5. If desired, the flame retardant may be employed in conjunction with a synergist, such as antimony trioxide.
Inventors
- 👤 Jack Newcombe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:08
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
67 words
A composition comprising a normally flammable organic polymer and a flame-retarding amount of a flame retardant corresponding to the formula: ##STR11## wherein X is chloro or bromo, Q is halo, hydrogen, or a hydrocarbyl or hydrocarbyloxy group, and Z is a monocyclic divalent saturated polybromocycloalkylene group containing 5-16 carbon atoms and 2-6 bromine atoms which are paired in vicinal positions; said valences being on adjacent carbon atoms.
Claim 2
Dependent Claim
67 words
A composition comprising a normally flammable organic polymer and a flame-retarding amount of a flame retardant corresponding to the formula: ##STR11## wherein X is chloro or bromo, Q is halo, hydrogen, or a hydrocarbyl or hydrocarbyloxy group, and Z is a monocyclic divalent saturated polybromocycloalkylene group containing 5-16 carbon atoms and 2-6 bromine atoms which are paired in vicinal positions; said valences being on adjacent carbon atoms.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein Z contains 2-4 bromine atoms.
Claim 4
Dependent Claim
11 words
The composition of claim 2 wherein Z contains two bromine atoms.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein X and Q are chloro.
Claim 6
Dependent Claim
24 words
The composition of claim 6 wherein Z is a saturated monocyclic polybromocycloalkylene group containing 8-12 carbon atoms in the ring and 2-4 bromine atoms.
Claim 7
Dependent Claim
14 words
The composition of claim 5 wherein the flame retardant corresponds to the formula: ##STR12##
Claim 8
Dependent Claim
14 words
The composition of claim 5 wherein the flame retardant corresponds to the formula: ##STR13##
Claim 9
Dependent Claim
14 words
The composition of claim 5 wherein the flame retardant corresponds to the formula: ##STR14##
Claim 10
Dependent Claim
19 words
The composition of claim 1 wherein the normally flammable organic polymer is a synthetic polymer of an unsaturated hydrocarbon.
Claim 11
Dependent Claim
16 words
The composition of claim 1 containing a synergist selected from compounds of antimony, arsenic, and bismuth.
Claim 12
Dependent Claim
26 words
A fire retardant polymeric composition comprising a combustible polymer and from about 1 to about 25 weight percent of the total composition of the compound 1,2-dibromo-4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoindane.
Claim 13
Dependent Claim
26 words
A fire retardant polymeric composition comprising a combustible polymer and from about 1 to about 25 weight percent of the total composition of the compound 1,2-dibromo-4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoindane.
Claim 14
Dependent Claim
76 words
A fire retardant polymeric composition comprising a combustible polymer and from about 1 to about 25 weight percent of the total composition of a compound corresponding to the formula: ##STR15## wherein X is chloro or bromo, Q is halo, hydrogen, or a hydrocarbyl or hydrocarbyloxy group, and Z is a monocyclic divalent saturated polybromocycloalkylene group containing 5-16 carbon atoms and 2-6 bromine atoms which are paired in vicinal positions; said valences being on adjacent carbon atoms.
Claim 15
Dependent Claim
76 words
A fire retardant polymeric composition comprising a combustible polymer and from about 1 to about 25 weight percent of the total composition of a compound corresponding to the formula: ##STR15## wherein X is chloro or bromo, Q is halo, hydrogen, or a hydrocarbyl or hydrocarbyloxy group, and Z is a monocyclic divalent saturated polybromocycloalkylene group containing 5-16 carbon atoms and 2-6 bromine atoms which are paired in vicinal positions; said valences being on adjacent carbon atoms.
Claim 16
Dependent Claim
11 words
The composition of claim 12 wherein the combustible polymer is polystyrene.
Claim 17
Dependent Claim
11 words
The composition of claim 12 wherein the combustible polymer is polyethylene.
Claim 18
Dependent Claim
17 words
The composition of claim 12 wherein the combustible polymer is a terpolymer of acrylonitrile, butadiene, and styrene.
Claim 19
Dependent Claim
18 words
The composition of claim 12 which contains from about 0.2 to about 25% by weight of antimony trioxide.
Claim 20
Dependent Claim
12 words
The composition of claim 12 wherein the combustible polymer is a polyester.
Claim 21
Dependent Claim
18 words
A fire retardant polymeric composition comprising a combustible polymer and a flame retardant amount of the compound 1,2,3-tribromo-4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoindane.
Claim 22
Dependent Claim
18 words
A fire retardant polymeric composition comprising a combustible polymer and a flame retardant amount of the compound 1,2,3-tribromo-4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoindane.
Claim 23
Dependent Claim
21 words
A fire retardant polymeric composition comprising a combustible polymer and a flame retardant amount of the compounds 1,2,3-tribromo-4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoindane and antimony trioxide.
Claim 24
Dependent Claim
21 words
A fire retardant polymeric composition comprising a combustible polymer and a flame retardant amount of the compounds 1,2,3-tribromo-4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoindane and antimony trioxide.
Claim 25
Dependent Claim
58 words
A novel flame retardant composition of matter comprising a polymeric material and a compound possessing the formula: ##STR16## in which X is a halogen selected from the group consisting of chlorine and bromine, X' is selected from the group consisting of hydrogen and halogen, and each of m and n is an integer of from 1 to 2.
Claim 26
Dependent Claim
58 words
A novel flame retardant composition of matter comprising a polymeric material and a compound possessing the formula: ##STR16## in which X is a halogen selected from the group consisting of chlorine and bromine, X' is selected from the group consisting of hydrogen and halogen, and each of m and n is an integer of from 1 to 2.
Claim 27
Dependent Claim
16 words
The composition of matter as set forth in claim 20 in which said halogen is chlorine.
Claim 28
Dependent Claim
16 words
The composition of matter as set forth in claim 20 in which said halogen is bromine.
Claim 29
Dependent Claim
22 words
The composition of matter as set forth in claim 20 in which said polymeric material is polypropylene and said compound is 1,2,3,4,9,9-hexachloro-6,7-dibromo-1,4,4a,5,6,7,8,8a-octahydro-1,4-methanonaphthalene.
Claim 30
Dependent Claim
24 words
The composition of matter as set forth in claim 20 in which said polymeric material is an acrylonitrile-butadiene-styrene copolymer and said compound is 1,2,3,4,10,10-hexachloro-6,7-dibromo-1,4,4a,9a-tetrahydro-1,4-methano-1H-benzocycloheptane.
Claim 31
Dependent Claim
22 words
The composition of matter as set forth in claim 20 in which said polymeric material is polyethylene and said compound is 1,2,3,4,11,11-hexachloro-7,8-dibromo-1,4,4a,10a-tetrahydro-1,4-methanobenzocyclooctane.
Claim 32
Dependent Claim
75 words
A fire retardant polymeric composition comprising a polymer and an effective fire retardant amount of a compound of the formula: ##STR17## wherein X is a halogen independently selected from the group consisting of chlorine and bromine, Y is independently selected from the group consisting of fluorine, chlorine, bromine, alkyl, and alkyloxy, and Z is a monocyclic divalent saturated polybromocycloalkylene group containing 6-8 carbon atoms and 2-6 bromine atoms; said valences being on adjacent carbon atoms.
Claim 33
Dependent Claim
75 words
A fire retardant polymeric composition comprising a polymer and an effective fire retardant amount of a compound of the formula: ##STR17## wherein X is a halogen independently selected from the group consisting of chlorine and bromine, Y is independently selected from the group consisting of fluorine, chlorine, bromine, alkyl, and alkyloxy, and Z is a monocyclic divalent saturated polybromocycloalkylene group containing 6-8 carbon atoms and 2-6 bromine atoms; said valences being on adjacent carbon atoms.
Claim 34
Dependent Claim
17 words
The composition of claim 26 wherein the polymer is a graft copolymer of polybutadiene, styrene and acrylonitrile.
Claim 35
Dependent Claim
18 words
The composition of claim 26 wherein X and Y are chlorine and Z is a dibrominated cycloalkylene group.
Claim 36
Dependent Claim
10 words
The composition of claim 26 wherein the polymer is polystyrene.
Claim 37
Dependent Claim
10 words
The composition of claim 26 wherein the polymer is polypropylene.
Claim 38
Dependent Claim
25 words
The composition of claim 26 wherein said compound is present in an amount from about 1 to about 25 percent by weight of said composition.
Claim 39
Dependent Claim
26 words
The composition of claim 31 wherein said compound is present in an amount of from about 5 to about 25 percent by weight of said composition.
Claim 40
Dependent Claim
26 words
The composition of claim 32 wherein said compound is present in an amount of from about 10 to about 25 percent by weight of said composition.
Claim 41
Dependent Claim
22 words
The composition of claim 26 wherein said composition contains also from about 0.2 to about 25 percent by weight of antimony oxide.
Claim 42
Dependent Claim
27 words
The composition of claim 34 wherein said antimony oxide is present in said composition in an amount of from about 2 to about 25 percent by weight.
Claim 43
Dependent Claim
35 words
A composition comprising a normally flammable organic polymer, a flame retardant corresponding to the formula: ##STR18## and antimony trioxide in an amount such as to provide a flame retardant/antimony trioxide weight ratio of about 1-4.5/1.
Claim 44
Dependent Claim
35 words
A composition comprising a normally flammable organic polymer, a flame retardant corresponding to the formula: ##STR18## and antimony trioxide in an amount such as to provide a flame retardant/antimony trioxide weight ratio of about 1-4.5/1.
Claim 45
Dependent Claim
14 words
The composition of claim 36 wherein the flame retardant/antimony trioxide ratio is about 2/1.
Claim 46
Dependent Claim
19 words
The composition of claim 36 wherein the normally flammable organic polymer is a synthetic polymer of an unsaturated hydrocarbon.
Claim 47
Dependent Claim
10 words
The composition of claim 38 wherein the polymer is polypropylene.
Claim 48
Dependent Claim
11 words
The composition of claim 38 wherein the polymer is impact polystyrene.
Claim 49
Dependent Claim
12 words
The composition of claim 38 wherein the polymer is an acrylonitrile-butadiene-styrene terpolymer.
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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) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |