US4129546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized with a minor amount of an oligomeric polymeric polycarbonate
Assignee: General Electric Co
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Filing: 1976-12-08
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Granted: 1978-12-12
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Expires: 1996-12-08
Abstract
Abstract A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric-polymeric carbonate.
Inventors
- 👤 Robert J. Axelrod
- 👤 Victor Mark
- 👤 Phillip S. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/109; C08G; C08G64/00; C08G64/04; C08G64/06; C08K5/11; C08L; C08L69/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate selected from the group consisting of those having repeating units of the following formulae: ##STR13## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 2
Dependent Claim
61 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate selected from the group consisting of those having repeating units of the following formulae: ##STR13## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 3
Dependent Claim
29 words
The composition of claim 1 wherein the oligomeric polymeric carbonate is present in an amount of from 0.05 to about 5.0 parts per hundred parts of aromatic carbonate polymer.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein the aromatic carbonate polymer is derived from bisphenol-A.
Claim 5
Dependent Claim
19 words
The composition of claim 1 wherein the aromatic carbonate polymer is a copolymer derived from bisphenol-A and tetrabromo bisphenol-A.
Claim 6
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR14## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 7
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR14## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 8
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR15## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 9
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR15## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 10
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR16## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 11
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR16## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 12
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR17## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
Claim 13
Dependent Claim
54 words
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and a minor amount of an oligomeric polymeric carbonate having repeating units of the following formula: ##STR17## and wherein said oligomeric polymeric carbonate has an intrinsic viscosity of 0.001 to 0.36 dl./g. as measured in methylene chloride at 25° C.
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) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |