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US5510448A
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Copolyestercarbonate composition derived from dihydricphenol, carbonate precursor and alpha omega-dicarboxylic acid
Assignee: SABIC Global Technologies BV
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Filing: 1995-01-17
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Granted: 1996-04-23
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Expires: 2015-01-17
Abstract
Abstract A composition comprising a copolyestercarbonate derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 10 to about 20 carbon atoms, inclusive, and is present in the copolyestercarbonate in quantities of from about 2 to 30 mole percent of the dihydric phenol.
Inventors
- 👤 Luca P. Fontane
- 👤 Kenneth F. Miller
- 👤 Christianus A. A. Claesen
- 👤 Peter W. van Es
- 👤 Theodorus O. N. de Vroomen
- 👤 Clayton V. Quinn
- 👤 Richard W. Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:05
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/64; B; B29; B29C; B29C48/00; B29C48/16; B29C48/18; C08G63/78; C08G63/79; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/29; Y10T428/2913; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
127 words
A composition comprising a copolyestercarbonate derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 10 to about 20 carbon atoms, inclusive, is present in the copolyestercarbonate in quantities of from about 2 to 30 mole percent of the dihydric phenol and is converted to a salt before reaction with the dihydric phenol and the carbonate precursor and wherein the carbonate precursor is added over a period of time and, from about 0 to about 95% of the period of time, the pH of the reaction is from about 8 to 8.5 and, for the remainder of the period, the pH of the reaction is from about 10 to 12.
Claim 2
Dependent Claim
127 words
A composition comprising a copolyestercarbonate derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 10 to about 20 carbon atoms, inclusive, is present in the copolyestercarbonate in quantities of from about 2 to 30 mole percent of the dihydric phenol and is converted to a salt before reaction with the dihydric phenol and the carbonate precursor and wherein the carbonate precursor is added over a period of time and, from about 0 to about 95% of the period of time, the pH of the reaction is from about 8 to 8.5 and, for the remainder of the period, the pH of the reaction is from about 10 to 12.
Claim 3
Dependent Claim
23 words
The composition in accordance with claim 1 wherein the dicarboxylic acid or ester precursor has from 10 to about 14 carbon atoms, inclusive.
Claim 4
Dependent Claim
15 words
The composition in accordance with claim 2 wherein the dicarboxylic acid has 10 carbon atoms.
Claim 5
Dependent Claim
15 words
The composition in accordance with claim 2 wherein the dicarboxylic acid has 12 carbon atoms.
Claim 6
Dependent Claim
19 words
The composition in accordance with claim 1 wherein the mole percent is from about 8 to 15 mole percent.
Claim 7
Dependent Claim
19 words
The composition in accordance with claim 2 wherein the mole percent is from about 8 to 15 mole percent.
Claim 8
Dependent Claim
195 words
A composition comprising a copolyester-carbonate having repeating units of the structure ##STR6## wherein: R is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; R 1 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; W is selected from divalent hydrocarbon radicals, n and n 1 are independently selected from integers having a value of from 0 to 4 inclusive; b is either zero or one; X is an aliphatic group of about 8 to 18 carbon atoms, inclusive; ##STR7## c is from about 2 to 30 mole percent of the total units c+d and wherein the composition is derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor is converted to a salt before reaction with the dihydric phenol and the carbonate precursor and wherein the carbonate precursor is added over a period of time and, from about 0 to about 95% of the period of time, the pH of the reaction is from about 8 to 8.5 and, for the remainder of the period, the pH of the reaction is from about 10 to 12.
Claim 9
Dependent Claim
195 words
A composition comprising a copolyester-carbonate having repeating units of the structure ##STR6## wherein: R is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; R 1 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; W is selected from divalent hydrocarbon radicals, n and n 1 are independently selected from integers having a value of from 0 to 4 inclusive; b is either zero or one; X is an aliphatic group of about 8 to 18 carbon atoms, inclusive; ##STR7## c is from about 2 to 30 mole percent of the total units c+d and wherein the composition is derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor is converted to a salt before reaction with the dihydric phenol and the carbonate precursor and wherein the carbonate precursor is added over a period of time and, from about 0 to about 95% of the period of time, the pH of the reaction is from about 8 to 8.5 and, for the remainder of the period, the pH of the reaction is from about 10 to 12.
Claim 10
Dependent Claim
11 words
An extruded article prepared from the copolyester carbonate of claim 7.
Claim 11
Dependent Claim
12 words
An article in accordance with claim 8 prepared as a sheet form.
Claim 12
Dependent Claim
11 words
An article in accordance with claim 9 prepared in film form.
Claim 13
Dependent Claim
21 words
An article in accordance with claim 7 comprising at least 90 weight percent by weight of the copolyestercarbonate of claim 7.
Claim 14
Dependent Claim
8 words
The thermoformed sheet in accordance with claim 9.
Claim 15
Dependent Claim
8 words
The thermoformed film in accordance with claim 10.
Claim 16
Dependent Claim
18 words
The composition in accordance with claim 7 wherein the polymer has less than about 0.5 mole % anhydride.
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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) | 1999-04-23 | 1999-10-23 | 2000-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-23 | 2003-10-23 | 2004-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-23 | 2007-10-23 | 2008-04-23 | $7700.00 | Window Closed / Lapsed |