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US4007155A
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Flame retardant polycarbonate composition
Assignee: General Electric Co
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Filing: 1975-11-26
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Granted: 1977-02-08
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Expires: 1995-11-26
Abstract
Abstract A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of aliphatic sulfonic acids. Also, included herein is a non-opaque flame retardant polycarbonate composition of an aromatic carbonate polymer and an additive which is a metal salt of aliphatic sulfonic acids; said aromatic carbonate polymer and additive having a refractive index in the range of 1.54 to 1.65.
Inventors
- 👤 Victor Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
120 words
A flame retardant aromatic carbonate polymer composition comprising in admixture an aromatic carbonate polymer and a minor amount of an additive having the following formula: (X.sub.m R').sub.s [(X.sub.n R)(SO.sub.3 M)].sub.p wherein X is an electron withdrawing radical, M is a metal selected from the group consisting of alkali metals and alkaline earth metals, R' is an aryl radical of 1-2 aromatic rings, R is an aliphatic radical of 1-10 carbon atoms, n and m are integers of from 0-11, s is an integer of from 0-5 and p is an integer of from 1-4; or mixtures thereof with the proviso that when s is 0, R is an aliphatic radical of 2-10 carbon atoms and X is chlorine or bromine.
Claim 2
Dependent Claim
120 words
A flame retardant aromatic carbonate polymer composition comprising in admixture an aromatic carbonate polymer and a minor amount of an additive having the following formula: (X.sub.m R').sub.s [(X.sub.n R)(SO.sub.3 M)].sub.p wherein X is an electron withdrawing radical, M is a metal selected from the group consisting of alkali metals and alkaline earth metals, R' is an aryl radical of 1-2 aromatic rings, R is an aliphatic radical of 1-10 carbon atoms, n and m are integers of from 0-11, s is an integer of from 0-5 and p is an integer of from 1-4; or mixtures thereof with the proviso that when s is 0, R is an aliphatic radical of 2-10 carbon atoms and X is chlorine or bromine.
Claim 3
Dependent Claim
149 words
A non-opaque flame retardant aromatic carbonate polymer composition comprising in admixture an aromatic carbonate polymer and from 0.001 to about 2.0 parts per hundred parts of the aromatic carbonate polymer of an additive having the following formula: (X.sub.m R').sub.s [(X.sub.n R)(SO.sub.3 M)].sub.p wherein X is an electron withdrawing radical, M is a metal selected from the group consisting of alkali metals and alkaline earth metals, R' is an aryl radical of 1-2 aromatic rings, R is an aliphatic radical of 1-10 carbon atoms, n and m are integers of from 0-11, s is an integer of from 0-5 and p is an integer of from 1-4; or mixtures thereof with the proviso that when s is 0, R is an aliphatic radical of 2-10 carbon atoms and X is chlorine or bromine; said aromatic carbonate polymer and additive having a refractive index in the range of 1.54 to 1.65.
Claim 4
Dependent Claim
149 words
A non-opaque flame retardant aromatic carbonate polymer composition comprising in admixture an aromatic carbonate polymer and from 0.001 to about 2.0 parts per hundred parts of the aromatic carbonate polymer of an additive having the following formula: (X.sub.m R').sub.s [(X.sub.n R)(SO.sub.3 M)].sub.p wherein X is an electron withdrawing radical, M is a metal selected from the group consisting of alkali metals and alkaline earth metals, R' is an aryl radical of 1-2 aromatic rings, R is an aliphatic radical of 1-10 carbon atoms, n and m are integers of from 0-11, s is an integer of from 0-5 and p is an integer of from 1-4; or mixtures thereof with the proviso that when s is 0, R is an aliphatic radical of 2-10 carbon atoms and X is chlorine or bromine; said aromatic carbonate polymer and additive having a refractive index in the range of 1.54 to 1.65.
Claim 5
Dependent Claim
25 words
The composition of claim 1 wherein the electron withdrawing radical is selected from the group consisting of halo-, nitro-, trihalomethyl- and cyano-radicals, and mixtures thereof.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein the additive is sodium 2-bromoethane-1-sulfonate.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein the additive is potassium 2-chloroethane-1-sulfonate.
Claim 8
Dependent Claim
11 words
The composition of claim 2 wherein the additive is potassium 3,4-dichlorotoluene-α-sulfonate.
Claim 9
Dependent Claim
138 words
A shaped article having a refractive index in the range of 1.54 to 1.65 comprising in admixture an aromatic carbonate polymer and from 0.001 to about 2.0 parts per hundred parts of the aromatic carbonate polymer of an additive having the following formula: (X.sub.m R').sub.s [(X.sub.n R)(SO.sub.3 M)].sub.p wherein X is an electron withdrawing radical, M is a metal selected from the group consisting of alkali metals and alkaline earth metals, R' is an aryl radical of 1-2 aromatic rings, R is an aliphatic radical of 1-10 carbon atoms, n and m are integers of from 0-11, s is an integer of from 0-5 and p is an integer of from 1-4; or mixtures thereof with the proviso that when s is 0, R is an aliphatic radical of 2-10 carbon atoms and X is chlorine or bromine.
Claim 10
Dependent Claim
138 words
A shaped article having a refractive index in the range of 1.54 to 1.65 comprising in admixture an aromatic carbonate polymer and from 0.001 to about 2.0 parts per hundred parts of the aromatic carbonate polymer of an additive having the following formula: (X.sub.m R').sub.s [(X.sub.n R)(SO.sub.3 M)].sub.p wherein X is an electron withdrawing radical, M is a metal selected from the group consisting of alkali metals and alkaline earth metals, R' is an aryl radical of 1-2 aromatic rings, R is an aliphatic radical of 1-10 carbon atoms, n and m are integers of from 0-11, s is an integer of from 0-5 and p is an integer of from 1-4; or mixtures thereof with the proviso that when s is 0, R is an aliphatic radical of 2-10 carbon atoms and X is chlorine or bromine.
Claim 11
Dependent Claim
12 words
The shaped article of claim 7 in the form of a sheet.
Claim 12
Dependent Claim
12 words
The shaped article of claim 7 in the form of a pellet.
References Cited (Backward Citations)
US3775367A
Cited
US3931100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |