US4401778A
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Flame retardant thermoplastic compositions
Assignee: Saytech Inc
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Filing: 1981-09-17
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Granted: 1983-08-30
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Expires: 2001-09-17
Abstract
Abstract A flame retardant thermoplastic polymer containing a flame retardant amount of a flame retardant additive mixture. The mixture is comprised of halogenated imide-containing polyols having the formula: ##STR1## and the corresponding ethers having the formula: ##STR2## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6. The preferred flame retardant mixture is a derivative of tetrabromophthalic anhydride.
Inventors
- 👤 Henry J. Barda
- 👤 Joseph M. Lesniewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:40
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
101 words
A thermoplastic polymer containing a flame retardant amount of a flame retardant additive mixture, said flame retardant additive mixture comprising halogenated imide-containing polyol having the formula: ##STR21## and the corresponding ethers having the formula: ##STR22## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 2
Dependent Claim
101 words
A thermoplastic polymer containing a flame retardant amount of a flame retardant additive mixture, said flame retardant additive mixture comprising halogenated imide-containing polyol having the formula: ##STR21## and the corresponding ethers having the formula: ##STR22## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 3
Dependent Claim
24 words
A flame retardant polymer, as recited in claim 1, wherein R' is an aliphatic hydrocarbon group containing 5 carbon atoms and p is 2.
Claim 4
Dependent Claim
20 words
A flame retardant polymer, as recited in claim 2, wherein R is benzene, X is bromine and n is 4.
Claim 5
Dependent Claim
26 words
A flame retardant polymer, as recited in claim 3, wherein said halogenated imide-containing polyol has the formula: ##STR23## and said corresponding ether has the formula: ##STR24##
Claim 6
Dependent Claim
20 words
A flame retardant polymer, as recited in claim 2, wherein R is 5-norbornene, X is chlorine and n is 6.
Claim 7
Dependent Claim
26 words
A flame retardant polymer, as recited in claim 5, wherein said halogenated imide-containing polyol has the formula: ##STR25## and said corresponding ether has the formula: ##STR26##
Claim 8
Dependent Claim
59 words
A flame retardant thermoplastic polymer containing a flame retardant amount of a flame retardant additive having the formula: ##STR27## wherein R is a benzene group, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 9
Dependent Claim
59 words
A flame retardant thermoplastic polymer containing a flame retardant amount of a flame retardant additive having the formula: ##STR27## wherein R is a benzene group, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 10
Dependent Claim
24 words
A flame retardant polymer, as recited in claim 7, wherein R' is an aliphatic hydrocarbon group containing 5 carbon atoms and p is 2.
Claim 11
Dependent Claim
17 words
A flame retardant polymer, as recited in claim 8, wherein X is bromine and n is 4.
Claim 12
Dependent Claim
13 words
A flame retardant polymer, as recited in claim 9, having the formula: ##STR28##
Claim 13
Dependent Claim
84 words
A flame retardant thermoplastic polymer containing a flame retardant amount of flame retardant additive having the formula: ##STR29## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 14
Dependent Claim
84 words
A flame retardant thermoplastic polymer containing a flame retardant amount of flame retardant additive having the formula: ##STR29## wherein R is a hydrocarbon group having the valence n+2 and is selected from the group consisting of benzene groups, naphthalene groups and alicyclic hydrocarbon groups containing 5 to 10 carbon atoms, R' is an aliphatic hydrocarbon group containing 3-12 carbon atoms, X is selected from the group consisting of bromine and chlorine, n is an integer from 1-6 and p is an integer from 2-6.
Claim 15
Dependent Claim
24 words
A flame retardant polymer, as recited in claim 11, wherein R' is an aliphatic hydrocarbon group containing 5 carbon atoms and p is 2.
Claim 16
Dependent Claim
20 words
A flame retardant polymer, as recited in claim 12, wherein R is benzene, X is bromine and n is 4.
Claim 17
Dependent Claim
13 words
A flame retardant polymer, as recited in claim 13, having the formula: ##STR30##
Claim 18
Dependent Claim
20 words
A flame retardant polymer, as recited in claim 12, wherein R is 5-norbornene, X is chlorine and n is 6.
Claim 19
Dependent Claim
13 words
A flame retardant polymer, as recited in claim 15, having the formula: ##STR31##
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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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |