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US3968083A
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Novel polyetherimides
Assignee: General Electric Co
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Filing: 1975-02-27
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Granted: 1976-07-06
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Expires: 1995-02-27
Abstract
Abstract This invention is concerned with a new class of polyetherimides. More particularly, the invention is concerned with polyetherimides derived from the reaction of an organic diamine and a class of dianhydrides selected from the class consisting of a bisphenol fluorenone dianhydride and a phenolphthalein dianhydride.
Inventors
- 👤 Clayton B. Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:13
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1085; C08G73/1046; C08G73/1053; C08G73/1057; C08G73/1064; C08G73/1067; C08G73/1071; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31623; Y10T428/31652; Y10T428/31678; Y10T428/31681; Y10T428/31721
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A polyetherimide corresponding to the formula ##SPC16## where n is a whole number greater than 1, R is a divalent organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals, C.sub.(2-8) alkylene terminated polydiorganosiloxanes, cyclo-alkylene radicals having from 2-20 carbon atoms, and (c) divalent radicals included by the formula ##SPC17## where Q is a member selected from the class consisting of --O--, ##EQU3## --S--, --C x H-- 2x where x is a whole number from 1 to 5 inclusive, m is 0 or 1, and Z is a member selected from the groups ##SPC18##
Claim 2
Dependent Claim
108 words
A polyetherimide corresponding to the formula ##SPC16## where n is a whole number greater than 1, R is a divalent organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals, C.sub.(2-8) alkylene terminated polydiorganosiloxanes, cyclo-alkylene radicals having from 2-20 carbon atoms, and (c) divalent radicals included by the formula ##SPC17## where Q is a member selected from the class consisting of --O--, ##EQU3## --S--, --C x H-- 2x where x is a whole number from 1 to 5 inclusive, m is 0 or 1, and Z is a member selected from the groups ##SPC18##
Claim 3
Dependent Claim
102 words
A polyetherimide composed of recurring structural units of formula ##SPC19## where R is a divalent organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals, C.sub.(2-8) alkylene terminated polydiorganosiloxanes, cyclo-alkylene radicals having from 2-20 carbon atoms, and (c) divalent radicals included by the formula ##SPC20## where Q is a member selected from the class consisting of --O--, ##EQU4## --S--, --C x H-- 2x where x is a whole number from 1 to 5 inclusive, m is 0 or 1, and n is a whole number greater than 1.
Claim 4
Dependent Claim
102 words
A polyetherimide composed of recurring structural units of formula ##SPC19## where R is a divalent organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals, C.sub.(2-8) alkylene terminated polydiorganosiloxanes, cyclo-alkylene radicals having from 2-20 carbon atoms, and (c) divalent radicals included by the formula ##SPC20## where Q is a member selected from the class consisting of --O--, ##EQU4## --S--, --C x H-- 2x where x is a whole number from 1 to 5 inclusive, m is 0 or 1, and n is a whole number greater than 1.
Claim 5
Dependent Claim
104 words
A polyetherimide composed of recurring structural units of formula ##SPC21## where R is a divalent organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals, C.sub.(2-8) alkylene terminated polydiorganosiloxanes, cyclo-alkylene radicals having from 2-20 carbon atoms, and (c) divalent radicals included by the formula ##SPC22## where Q is a member selected from the class consisting of --O--, ##EQU5## --S--, --C x H-- 2x , where x is a whole number from 1 to 5 inclusive, and m is 0 or 1, and n is a whole number greater than 1.
Claim 6
Dependent Claim
104 words
A polyetherimide composed of recurring structural units of formula ##SPC21## where R is a divalent organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals, C.sub.(2-8) alkylene terminated polydiorganosiloxanes, cyclo-alkylene radicals having from 2-20 carbon atoms, and (c) divalent radicals included by the formula ##SPC22## where Q is a member selected from the class consisting of --O--, ##EQU5## --S--, --C x H-- 2x , where x is a whole number from 1 to 5 inclusive, and m is 0 or 1, and n is a whole number greater than 1.
Claim 7
Dependent Claim
20 words
A polyetherimide composed of recurring structural units of the formula ##SPC23## where n is a whole number greater than 1.
Claim 8
Dependent Claim
20 words
A polyetherimide composed of recurring structural units of the formula ##SPC23## where n is a whole number greater than 1.
Claim 9
Dependent Claim
20 words
A polyetherimide composed of recurring structural units of the formula ##SPC24## where n is a whole number greater than 1.
Claim 10
Dependent Claim
20 words
A polyetherimide composed of recurring structural units of the formula ##SPC24## where n is a whole number greater than 1.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |