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US4504649A
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Copolyester-carbonate resins
Assignee: General Electric Co
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Filing: 1983-12-16
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Granted: 1985-03-12
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Expires: 2003-12-16
Abstract
Abstract Copolyester-carbonate resins exhibiting improved processability which are derived from: (i) at least one diester-diol which is the coreaction product of an aromatic hydroxy carboxylic acid or an ester forming reactive derivative thereof and a diol; (ii) at least one dihydric phenol; (iii) at least one bishaloformate; and (iv) a carbonyl halide carbonate precursor.
Inventors
- 👤 Victor Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:53
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/64
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
159 words
Thermoplastic copolyester-carbonates exhibiting improved processability comprised of recurring structural units represented by the general formulae ##STR32## wherein: R is independently selected from divalent aromatic radicals; R 1 is selected from divalent aromatic radicals, divalent aliphatic radicals, and divalent aliphatic ether residues represented by the general formula (--R.sup.5 --O--).sub.n R.sup.6 -- wherein R 5 is independently selected from alkylene radicals and cycloalkylene radicals, R 6 is selected from alkylene radicals and cycloalkylene radicals, and n is a positive integer having a value of from 1 to about 10; R 2 is selected from divalent residues of dihydric phenols represented by the general formula ##STR33## wherein R 9 is independently selected from monovalent hydrocarbon radicals and halogen radicals, z is independently selected from positive integers having a value of from 0 to 4 inclusive, d is either zero or one, and W is selected from divalent hydrocarbon radicals, --O--, --S--, --S--S--, ##STR34## and R 3 is selected from divalent aliphatic radicals.
Claim 2
Dependent Claim
159 words
Thermoplastic copolyester-carbonates exhibiting improved processability comprised of recurring structural units represented by the general formulae ##STR32## wherein: R is independently selected from divalent aromatic radicals; R 1 is selected from divalent aromatic radicals, divalent aliphatic radicals, and divalent aliphatic ether residues represented by the general formula (--R.sup.5 --O--).sub.n R.sup.6 -- wherein R 5 is independently selected from alkylene radicals and cycloalkylene radicals, R 6 is selected from alkylene radicals and cycloalkylene radicals, and n is a positive integer having a value of from 1 to about 10; R 2 is selected from divalent residues of dihydric phenols represented by the general formula ##STR33## wherein R 9 is independently selected from monovalent hydrocarbon radicals and halogen radicals, z is independently selected from positive integers having a value of from 0 to 4 inclusive, d is either zero or one, and W is selected from divalent hydrocarbon radicals, --O--, --S--, --S--S--, ##STR34## and R 3 is selected from divalent aliphatic radicals.
Claim 3
Dependent Claim
45 words
The copolyester-carbonates of claim 1 wherein R is selected from radicals represented by the general formula ##STR35## wherein: R 4 is independently selected from monovalent hydrocarbon radicals and halogen radicals; and s is a positive integer having a value of from 0 to 4 inclusive.
Claim 4
Dependent Claim
15 words
The copolyester-carbonates of claim 2 wherein said halogen radicals are selected from chlorine and bromine.
Claim 5
Dependent Claim
18 words
The copolyester-carbonates of claim 2 wherein the monovalent hydrocarbon radicals are selected from alkyl radicals and cycloalkyl radicals.
Claim 6
Dependent Claim
22 words
The copolyester-carbonates of claim 2 wherein said divalent aliphatic radicals represented by R 1 are selected from alkylene radicals and cycloalkylene radicals.
Claim 7
Dependent Claim
69 words
The copolyester-carbonates of claim 2 wherein said divalent aromatic radicals represented by R 1 are selected from radicals represented by the general formula ##STR36## wherein: R 7 is independently selected from monovalent hydrocarbon radicals and halogen radicals; Ar is selected from divalent aromatic radicals; and q is a positive integer having a value of from and including zero up to the number of positions on Ar available for substitution.
Claim 8
Dependent Claim
28 words
The copolyester-carbonates of claim 6 wherein said monovalent hydrocarbon radicals represented by R 7 are selected from alkyl radicals, cycloalkyl radicals, aryl radicals, aralkyl radicals, and alkaryl radicals.
Claim 9
Dependent Claim
20 words
The copolyester-carbonates of claim 6 wherein said divalent aromatic radicals represented by Ar are selected from phenylene, naphthylene and biphenylene.
Claim 10
Dependent Claim
17 words
The copolyester-carbonates of claim 8 wherein said divalent aromatic radical represented by Ar is the phenylene radical.
Claim 11
Dependent Claim
34 words
The copolyester-carbonates of claim 6 wherein Ar is selected from radicals represented by the general formula ##STR37## wherein R 8 is an alkylene radical, a cycloalkylene radical, an alkylidene radical, or a cycloalkylidene radical.
Claim 12
Dependent Claim
16 words
The copolyester-carbonates of claim 10 wherein q is zero and R 8 is the 2,2-propylidene radical.
Claim 13
Dependent Claim
14 words
The copolyester-carbonates of claim 2 wherein R 1 is selected from divalent aliphatic radicals.
Claim 14
Dependent Claim
25 words
The copolyesters of claim 1 wherein the divalent hydrocarbon radicals represented by W are selected from alkylene radicals, cycloalkylene radicals, alkylidene radicals, and cycloalkylidene radicals.
Claim 15
Dependent Claim
15 words
The copolyester-carbonates of claim 13 wherein z is zero and W is the 2,2-propylidene radical.
Claim 16
Dependent Claim
14 words
The copolyesters of claim 2 wherein R 3 is selected from divalent hydrocarbon radicals.
Claim 17
Dependent Claim
23 words
The copolyester-carbonates of claim 15 wherein said divalent aliphatic hydrocarbon radicals are selected from alkylene radicals, cycloalkylene radicals, alkylidene radicals, and cycloalkylidene radicals.
Claim 18
Dependent Claim
16 words
The copolyester-carbonates of claim 15 wherein said divalent aliphatic hydrocarbon radicals are selected from alkylene radicals.
Claim 19
Dependent Claim
68 words
Thermoplastic copolyester-carbonates exhibiting improved processability which contain the reaction products of: (i) at least one diester diol which is the reaction product of at least two moles of at least one aromatic hydroxy carboxylic acid or an ester forming reactive derivative thereof and one mole of at least one diol; (ii) at least one dihydric phenol; (iii) at least one bishaloformate; and (iv) a carbonyl halide carbonate precursor.
Claim 20
Dependent Claim
68 words
Thermoplastic copolyester-carbonates exhibiting improved processability which contain the reaction products of: (i) at least one diester diol which is the reaction product of at least two moles of at least one aromatic hydroxy carboxylic acid or an ester forming reactive derivative thereof and one mole of at least one diol; (ii) at least one dihydric phenol; (iii) at least one bishaloformate; and (iv) a carbonyl halide carbonate precursor.
Claim 21
Dependent Claim
41 words
The copolyester-carbonates of claim 18 wherein said diester-diol is represented by the general formula ##STR38## wherein: R is independently selected from divalent aromatic radicals; and R 1 is selected from divalent aromatic radicals, divalent aliphatic radicals, and divalent aliphatic ether residues.
Claim 22
Dependent Claim
18 words
The copolyester-carbonates of claim 19 wherein said aromatic hydroxy carboxylic acid is represented by the general formula ##STR39##
Claim 23
Dependent Claim
43 words
The copolyester-carbonates of claim 20 wherein said ester forming reactive derivative of said aromatic hydroxy carboxylic acid is represented by the general formula ##STR40## wherein X is selected from halogen radicals and --OR 13 radicals where R 13 is a monovalent hydrocarbon radical.
Claim 24
Dependent Claim
16 words
The copolyester-carbonates of claim 19 wherein said diol is represented by the general formula HO--R.sup.1 --OH.
Claim 25
Dependent Claim
63 words
The copolyester-carbonates of claim 19 wherein said dihydric phenol is represented by the general formula ##STR41## wherein: R 9 is independently selected from monovalent hydrocarbon radicals and halogen radicals; W is selected from divalent hydrocarbon radicals, --O--, --S--, --S--S--, ##STR42## z is independently selected from positive integers having a value of from 0 to 4 inclusive; and d is either zero or one.
Claim 26
Dependent Claim
24 words
The copolyester-carbonates of claim 23 wherein said monovalent hydrocarbon radicals represented by R 9 are selected from alkyl, cycloalkyl, aryl, aralkyl, and alkaryl radicals.
Claim 27
Dependent Claim
22 words
The copolyester-carbonates of claim 23 wherein said divalent hydrocarbon radicals represented by W are selected from alkylene, alkylidene, cycloalkylene, and cycloalkylidene radicals.
Claim 28
Dependent Claim
32 words
The copolyester-carbonates of claim 19 wherein said bishaloformate is represented by the general formula ##STR43## wherein: Y is independently selected from halogen radicals; and R 3 is selected from divalent aliphatic radicals.
Claim 29
Dependent Claim
22 words
The copolyester-carbonates of claim 26 wherein said divalent aliphatic radicals represented by R 3 are selected from alkylene radicals and cycloalkylene radicals.
Claim 30
Dependent Claim
11 words
The copolyester-carbonates of claim 19 wherein said carbonyl halide is phosgene.
Claim 31
Dependent Claim
28 words
The copolyester-carbonates of claim 28 wherein said aromatic hydroxy carboxylic acid or its ester forming reactive derivative is hydroxy benzoic acid or an ester forming reactive derivative thereof.
Claim 32
Dependent Claim
12 words
The copolyester-carbonates of claim 29 wherein said diol is an aliphatic diol.
Claim 33
Dependent Claim
11 words
The copolyester-carbonates of claim 30 wherein said dihydric phenol is bisphenol-A.
Claim 34
Dependent Claim
10 words
The copolyester-carbonates of claim 31 wherein said bishaloformate is bischloroformate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |