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US4433104A
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Polyetherimide-fluorinated polyolefin blends
Assignee: General Electric Co
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Filing: 1982-03-18
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Granted: 1984-02-21
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Expires: 2002-03-18
Abstract
Abstract Disclosed are blends of (a) a polyetherimide and (b) a thermoplastic fluorinated polyolefin, or copolymer thereof. The blends have good flexural strength and flexural modulus and have a higher impact strength than those associated with the polyetherimide components of the blends.
Inventors
- 👤 Harold F. Giles, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:52
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L77/00; C08L79/00; C08L79/04; C08L79/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
A composition comprising a blend of (a) a fluorinated polyolefin or copolymer thereof and (b) a polyetherimide which has the formula: ##STR13## where a represents a whole number in excess of 1, the group --O--A< is selected from: ##STR14## R' being hydrogen, lower alkyl or lower alkoxy, Z is a member of the class consisting of (1) ##STR15## and (2) divalent organic radicals of the general formula: ##STR16## where X is a member selected from the class consisting of divalent radicals of the formulas, ##STR17## where q is 0 or 1, y is a whole number from 1 to 4, and R is a divalent organic radical selected from the class consisting of (1) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (2) alkylene radicals and cycloalkylene radicals having from 2-20 carbon atoms, C.sub.(2-8) alkylene terminated polydiorganosiloxane, and (3) divalent radicals included by the formula ##STR18## where x is a whole number from 1 to 5 inclusive.
Claim 2
Dependent Claim
161 words
A composition comprising a blend of (a) a fluorinated polyolefin or copolymer thereof and (b) a polyetherimide which has the formula: ##STR13## where a represents a whole number in excess of 1, the group --O--A< is selected from: ##STR14## R' being hydrogen, lower alkyl or lower alkoxy, Z is a member of the class consisting of (1) ##STR15## and (2) divalent organic radicals of the general formula: ##STR16## where X is a member selected from the class consisting of divalent radicals of the formulas, ##STR17## where q is 0 or 1, y is a whole number from 1 to 4, and R is a divalent organic radical selected from the class consisting of (1) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (2) alkylene radicals and cycloalkylene radicals having from 2-20 carbon atoms, C.sub.(2-8) alkylene terminated polydiorganosiloxane, and (3) divalent radicals included by the formula ##STR18## where x is a whole number from 1 to 5 inclusive.
Claim 3
Dependent Claim
15 words
A composition in accordance with claim 1 wherein the fluorinated polyolefin includes a fluorinated polyethylene.
Claim 4
Dependent Claim
67 words
A composition in accordance with claim 2 wherein the fluorinated polyethylene has the repeating structural formula: ##STR19## where b is an integer in excess of 50 and Y 1 to Y 4 , which may be the same or different, are selected from the group consisting of hydrogen, chlorine, bromine and fluorine, with the proviso that at least one of Y 1 to Y 4 is fluorine.
Claim 5
Dependent Claim
19 words
A composition in accordance with claim 3 wherein at least two of Y 1 to Y 4 are fluorine.
Claim 6
Dependent Claim
19 words
A composition in accordance with claim 4 wherein at least three of Y 1 to Y 4 are fluorine.
Claim 7
Dependent Claim
15 words
A composition in accordance with claim 5 where Y 1 to Y 4 are fluorine.
Claim 8
Dependent Claim
32 words
A composition in accordance with claim 1 wherein the polyetherimide is of the formula; ##STR20## and the divalent bonds of --O--Z--O-- radical are in the 3,3'; 3,4'; 4,3' or the 4,4' position.
Claim 9
Dependent Claim
17 words
A composition in accordance with claim 7 wherein Z is; ##STR21## and R is selected from; ##STR22##
Claim 10
Dependent Claim
15 words
A composition in accordance with claim 8 wherein the polyetherimide is of the formula: ##STR23##
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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) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |