US4395513A
Expired / Lapsed
US
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High performance thermally stable poly(6-oxy-2-naphthoate)
Assignee: Celanese Corp
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Filing: 1982-04-08
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Granted: 1983-07-26
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Expires: 2002-04-08
Abstract
Abstract An improved high performance thermally stable polymer is provided. Such polymer is composed primarily of recurring 6-oxy-2-naphthoyl moieties and is preferably a homopolymer of 6-oxy-2-naphthoyl moieties, i.e. poly(6-oxy-2-naphthoate). It is particularly suited for use in the formation of plasma spray coatings and compression or impact molded articles, and has been found to offer a thermal stability which is superior to that of poly(4-oxybenzoate). Small amounts (as described) of other ester-forming moieties and/or amide-forming moieties optionally may also be present.
Inventors
- 👤 Gordon W. Calundann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:00
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/065
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
31 words
A high performance thermally stable polymer consisting of recurring 6-oxy-2-naphthoyl moieties and 0 to approximately 3 mole percent of other ester-forming and/or amide-forming moieties which include at least one aromatic ring.
Claim 2
Dependent Claim
31 words
A high performance thermally stable polymer consisting of recurring 6-oxy-2-naphthoyl moieties and 0 to approximately 3 mole percent of other ester-forming and/or amide-forming moieties which include at least one aromatic ring.
Claim 3
Dependent Claim
43 words
A high performance thermally stable polymer according to claim 1 wherein said other ester-forming moieties are derived from a comonomer source selected from the group consisting of aromatic diols and aromatic diacids, aromatic hydroxyacids other than 6-hydroxy-2-naphthoic acid, and mixtures of the foregoing.
Claim 4
Dependent Claim
60 words
A high performance thermally stable polymer according to claim 1 wherein said amide-forming moieties are of the structure --Y--Ar--Z-- where Ar is a divalent radical comprising at least one aromatic ring, Y is O, ##STR6## NH or NR, and Z is NH or NR, where R is an alkyl group of 1 to 6 carbon atoms or an aryl group.
Claim 5
Dependent Claim
20 words
A high performance thermally stable polymer according to claim 1 wherein said other ester-forming and/or amide-forming moieties are symmetrically disposed.
Claim 6
Dependent Claim
14 words
A compression molded article comprising the high performance thermally stable polymer of claim 1.
Claim 7
Dependent Claim
14 words
An impact molded article comprising the high performance thermally stable polymer of claim 1.
Claim 8
Dependent Claim
28 words
A molding compound comprising the high performance thermally stable polymer of claim 1 which incorporates approximately 1 to 60 percent by weight of a filler and/or reinforcing agent.
Claim 9
Dependent Claim
11 words
A high performance thermally stable polymer consisting of recurring 6-oxy-2-naphthoyl moieties.
Claim 10
Dependent Claim
11 words
A high performance thermally stable polymer consisting of recurring 6-oxy-2-naphthoyl moieties.
Claim 11
Dependent Claim
14 words
A compression molded article comprising the high performance thermally stable polymer of claim 8.
Claim 12
Dependent Claim
14 words
An impact molded article comprising the high performance thermally stable polymer of claim 8.
Claim 13
Dependent Claim
28 words
A molding compound comprising the high performance thermally stable polymer of claim 8 which incorporates approximately 1 to 60 percent by weight of a filler and/or reinforcing agent.
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) | 1986-07-25 | 1987-01-24 | 1987-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-25 | 1991-01-24 | 1991-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-25 | 1995-01-24 | 1995-07-26 | $7700.00 | Window Closed / Lapsed |