US4454275A
Expired / Lapsed
US
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Flame retardant copolyester-carbonate compositions
Assignee: General Electric Co
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Filing: 1982-08-11
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Granted: 1984-06-12
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Expires: 2002-08-11
Abstract
Abstract An improved flame retardant polyester-carbonate composition comprised of an admixture of (i) an aromatic polyester-carbonate, (ii) an organic alkali metal salt of sulfonic acid or an organic alkaline earth metal salt of sulfonic acid or mixtures thereof, and (iii) a fluorinated polyolefin.
Inventors
- 👤 Niles R. Rosenquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42; C08L; C08L101/00; C08L101/02; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L69/00; C08L69/005
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
139 words
An aromatic copolyester carbonate composition which obtains a pass rating under the procedures of a modified ASTM D-3713 consisting essentially of in admixture (i) a nonhalogenated aromatic copolyester carbonate derived from a dihydric phenol, an aromatic dicarboxylic acid, reactive derivative of an acid or mixtures thereof, and a carbonate precursor, said aromatic dicarboxylic acid or reactive derivative thereof being present as residue in the aromatic polyestercarbonate in a mole percent of from about 25 to about 90 mole percent based on the moles of dihydric phenol; (ii) a flame retardant effective amount of at least one compound selected from the group consisting of alkali metal salts of an organic sulfonic acid and alkaline earth metal salts of organic sulfonic acid; (iii) an anti-dripping effective amount of a type 3 fluorinated polyolefin; and (iv) the essential absence of glass fibers.
Claim 2
Dependent Claim
139 words
An aromatic copolyester carbonate composition which obtains a pass rating under the procedures of a modified ASTM D-3713 consisting essentially of in admixture (i) a nonhalogenated aromatic copolyester carbonate derived from a dihydric phenol, an aromatic dicarboxylic acid, reactive derivative of an acid or mixtures thereof, and a carbonate precursor, said aromatic dicarboxylic acid or reactive derivative thereof being present as residue in the aromatic polyestercarbonate in a mole percent of from about 25 to about 90 mole percent based on the moles of dihydric phenol; (ii) a flame retardant effective amount of at least one compound selected from the group consisting of alkali metal salts of an organic sulfonic acid and alkaline earth metal salts of organic sulfonic acid; (iii) an anti-dripping effective amount of a type 3 fluorinated polyolefin; and (iv) the essential absence of glass fibers.
Claim 3
Dependent Claim
99 words
The composition of claim 1 wherein said alkali metal salts of organic sulfonic acid and alkaline earth metal salts of organic sulfonic acid are derived from acid selected from the group consisting of: unsubstituted monomeric or polymeric sulfonic acids; monomeric or polymeric aromatic sulfonesulfonic acids; sulfonic acids of aromatic ketones; heterocyclic sulfonic acids; sulfonic acids of aromatic sulfides; monomeric or polymeric aromatic ether sulfonic acids; olefinic sulfonic acids; monomeric or polymeric phenol ester sulfonic acids; sulfonic acids of monomeric and polymeric aromatic carboxylic acids and esters; halocycloaliphatic aromatic sulfonic acids; monomeric or polymeric aromatic sulfonic acids; and mixtures thereof.
Claim 4
Dependent Claim
11 words
The composition of claim 2 wherein said fluorinated polyolefin is polytetrafluoroethylene.
Claim 5
Dependent Claim
27 words
The composition of claim 3 wherein said amount of polytetrafluoroethylene is from about 0.05 to about 0.5 weight percent based on the weight of the polyester-carbonate resin.
Claim 6
Dependent Claim
27 words
The composition of claim 2 wherein said flame retardant amount is from about 0.2 to about 2 weight percent based on the weight of the polyester-carbonate resin.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein said dihydric phenol is bisphenol-A.
Claim 8
Dependent Claim
11 words
The composition of claim 6 wherein said carbonate precursor is phosgene.
Claim 9
Dependent Claim
35 words
The composition of claim 7 wherein the copolyester-carbonate is derived from a reactive derivative of dicarboxylic acid and said reactive derivative is selected from the group consisting of isophthaloyl dichloride, terephthaloyl dichloride, and mixtures thereof.
Claim 10
Dependent Claim
33 words
The composition in accordance with claim 8 wherein the dicarboxylic acid reactive derivative residue is present in the aromatic copolyester-carbonate in a mole percent of from about 35 to about 80 mole percent.
Claim 11
Dependent Claim
17 words
The composition of claim 1 wherein the alkali metal salt of organic sulfonic acid is sodium 2,4,5-trichlorobenzenesulfonate.
Claim 12
Dependent Claim
124 words
An aromatic copolyester-carbonate composition which obtains a pass rating under the procedures of a modified ASTM D-3713 consisting essentially of in admixture (i) an non-halogenated aromatic copolyester carbonate derived from a dihydric phenol, an aromatic dicarboxylic acid or reactive derivative thereof, and a carbonate precursor, said aromatic dicarboxylic acid or reactive derivative thereof being present in the aromatic polyestercarbonate in a mole percent of from about 25 to about 90 mole percent based on the moles of dihydric phenol; (ii) a flame retardant effective amount of at least one compound selected from the group consisting of alkali metal salts of an organic sulfonic acid and alkaline earth metal salts of organic sulfonic acid; (iii) an anti-dripping effective amount of a type 3 fluorinated polyolefin.
Claim 13
Dependent Claim
124 words
An aromatic copolyester-carbonate composition which obtains a pass rating under the procedures of a modified ASTM D-3713 consisting essentially of in admixture (i) an non-halogenated aromatic copolyester carbonate derived from a dihydric phenol, an aromatic dicarboxylic acid or reactive derivative thereof, and a carbonate precursor, said aromatic dicarboxylic acid or reactive derivative thereof being present in the aromatic polyestercarbonate in a mole percent of from about 25 to about 90 mole percent based on the moles of dihydric phenol; (ii) a flame retardant effective amount of at least one compound selected from the group consisting of alkali metal salts of an organic sulfonic acid and alkaline earth metal salts of organic sulfonic acid; (iii) an anti-dripping effective amount of a type 3 fluorinated polyolefin.
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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) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |