US4430484A
Expired / Lapsed
US
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Polyester-carbonate resin blends
Assignee: General Electric Co
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Filing: 1982-08-30
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Granted: 1984-02-07
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Expires: 2002-08-30
Abstract
Abstract Novel thermoplastic compositions are disclosed which comprise blends of: (a) a polyester-carbonate resin; and (b) at least one polymer selected from the group consisting of (i) polyamides, (ii) polyimides, (iii) polyamideimides, and (iv) mixtures thereof.
Inventors
- 👤 Clayton B. Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:16
CPC Classifications
C; C08; C08L; C08L67/00; C08L69/00; C08L69/005
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
143 words
A thermoplastic composition comprising in admixture (a) an aromatic polyester-carbonate and (b) an aromatic polyester-carbonate heat distortion improving effective amount of at least one polymer selected from the group consisting of (i) aromatic polyamide of the formula ##STR8## wherein R 3 and R 5 are independently selected from halogen, alkyl of one to twelve carbon atoms, and substituted alkyl wherein the substituent is halogen or OR 7 wherein R 7 is an alkyl of one to ten carbon atoms; R 4 and R 6 are independently selected from alkyl of one to twelve carbon atoms, hydrogen, aryl of six to eighteen carbon atoms, aralkyl of seven to eighteen carbon atoms, and alkaryl of seven to eighteen carbon atoms; a is from 10 to abut 500; b and c are independently selected from an integer of 0 to 4. (ii) aromatic polyamideimides (iii) polyimides.
Claim 2
Dependent Claim
143 words
A thermoplastic composition comprising in admixture (a) an aromatic polyester-carbonate and (b) an aromatic polyester-carbonate heat distortion improving effective amount of at least one polymer selected from the group consisting of (i) aromatic polyamide of the formula ##STR8## wherein R 3 and R 5 are independently selected from halogen, alkyl of one to twelve carbon atoms, and substituted alkyl wherein the substituent is halogen or OR 7 wherein R 7 is an alkyl of one to ten carbon atoms; R 4 and R 6 are independently selected from alkyl of one to twelve carbon atoms, hydrogen, aryl of six to eighteen carbon atoms, aralkyl of seven to eighteen carbon atoms, and alkaryl of seven to eighteen carbon atoms; a is from 10 to abut 500; b and c are independently selected from an integer of 0 to 4. (ii) aromatic polyamideimides (iii) polyimides.
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein said aromatic polyester-carbonate is derived from a dihydric phenol, a carbonate precursor, and an aromatic dicarboxylic acid or a reactive derivative thereof.
Claim 4
Dependent Claim
12 words
The composition of claim 2 wherein said dihydric phenol is bisphenol A.
Claim 5
Dependent Claim
11 words
The composition of claim 3 wherein said carbonate precursor is phosgene.
Claim 6
Dependent Claim
46 words
The composition of claim 4 wherein said aromatic dicarboxylic acid is selected from the group consisting of isophthalic acid, terephthalic acid, and mixtures thereof; and wherein the reactive derivative of said acid is selected from the group consisting of terephthaloyl dichloride, isophthaloyl dichloride, and mixtures thereof.
Claim 7
Dependent Claim
25 words
The composition of claim 5 wherein said aromatic polyester-carbonate is a copolymer resulting from the condensation of bisphenol-A with terephthaloyl dichloride, isophthaloyl dichloride and phosgene.
Claim 8
Dependent Claim
105 words
The composition of claim 1 wherein said polyamideimide is represented by the general formula ##STR9## wherein each R 10 is independently selected from the group consisting of alkyl radicals, halogen radicals, and substituted alkyl radicals; R 9 is selected from the group consisting of hydrogen, alkyl radicals, aryl radicals, aralkyl radicals, and alkaryl radicals; R 8 is selected from the group consisting of divalent aromatic organic radicals having from 6 to about 30 carbon atoms, alkylene radicals, alkylidene radicals, and cycloalkylene radicals; d has a value from about 10 to about 500; and e is an integer having a value from 0 to 3 inclusive.
Claim 9
Dependent Claim
28 words
The composition of claim 7 wherein said divalent aromatic organic radicals are selected from the group consisting of divalent aromatic hydrocarbon radicals and divalent halogenated aromatic hydrocarbon radicals.
Claim 10
Dependent Claim
10 words
The composition of claim 1 wherein said polyimides ae polyetherimides.
Claim 11
Dependent Claim
64 words
The composition of claim 9 wherein said polyetherimides are represented by the general formula ##STR10## wherein f has a value from about 10 to about 500; R 12 is selected from the group consisting of divalent aliphatic hydrocarbon radicals, divalent aromatic hydrocarbon radical, and divalent cycloaliphatic hydrocarbon radicals; and R 11 is a divalent aromatic organic radical having from 6 to 30 carbon atoms.
Claim 12
Dependent Claim
91 words
The composition of claim 10 wherein R 11 is selected from the group consisting aromatic hydrocarbon radicals; halogenated aromatic hydrocarbon radicals; and radicals included by the formula --R.sup.13 --(G).sub.g --R.sup.13 -- wherein R 13 is a divalent aromatic radical having from 6-13 carbon atoms selected from hydrocarbon radicals and halogenated hydrocarbon radicals, and G is a divalent organo radical selected from ##STR11## where g is zero or one, z is an integer having a value from 1 to 5, and R 14 is a monovalent alkyl, aryl, alkaryl or aralkyl radical.
Claim 13
Dependent Claim
12 words
The composition of claim 11 wherein R 11 is the ##STR12## radical.
Claim 14
Dependent Claim
12 words
The composition of claim 12 wherein R 12 is a phenylene radical.
Claim 15
Dependent Claim
26 words
The composition of claim 13 wherein the aromatic polyester-carbonate is a copolymer resulting from the condensation of bisphenol A with terephthaloyl dichloride, isophthaloyl dichloride and phosgene.
Claim 16
Dependent Claim
39 words
The composition of claim 1 which contains from about 30 to about 70 parts by weight of (a) and from about 70 to about 30 parts by weight of (b) as measured by total parts of (a) and (b).
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) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |