US5019616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a polyphenylene-ether-containing polymeric component and reinforcing fibers
Assignee: SABIC Global Technologies BV
•
Filing: 1989-05-16
•
Granted: 1991-05-28
•
Expires: 2009-05-16
Abstract
Abstract A thermally stable polyphenylene ether composition having long glass fibers of at least 4 mm length incorporated therein. A suitable high temperature binder such as polyethyloxazoline may be included in the composition, as well as a flame retardant additive or other filler.
Inventors
- 👤 Roger W. Avakian
- 👤 Popkin Shenian
- 👤 Jan Bussink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:21
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
45 words
A composition having improved long term heat aging, comprising a polyphenylene ether (PPE)-containing polymeric component, reinforcing fibers having a length of at from 4 to 30 mm, and a polyethyl oxazoline binder, the polymeric component containing more than 75% by weight of substantially pure PPE.
Claim 2
Dependent Claim
45 words
A composition having improved long term heat aging, comprising a polyphenylene ether (PPE)-containing polymeric component, reinforcing fibers having a length of at from 4 to 30 mm, and a polyethyl oxazoline binder, the polymeric component containing more than 75% by weight of substantially pure PPE.
Claim 3
Dependent Claim
16 words
A composition according to claim 1, wherein the fibers have a length of about 13 nm.
Claim 4
Dependent Claim
23 words
A composition according to claim 1 wherein the weight ratio between the polymeric component and the fiber component is from 40:60 to 80:20.
Claim 5
Dependent Claim
15 words
A composition according to claim 3, further comprising up to 20% by weight of polystyrene.
Claim 6
Dependent Claim
23 words
A composition according to claim 4, wherein said flame retardant additive is selected from the group comprising brominated polystyrene and aromatic phosphate esters.
Claim 7
Dependent Claim
17 words
A composition according to claim 1, wherein the fibers have a diameter of 2 to 30 microns.
Claim 8
Dependent Claim
12 words
A composition according to claim 1, wherein the fibers are glass fibers.
Claim 9
Dependent Claim
12 words
A composition according to claim 1, wherein the fibers are carbon fibers.
Claim 10
Dependent Claim
20 words
A composition according to claim 1, wherein said polyethyloxazoline binder comprises from 0.1 to 20 weight percent of the composition.
Claim 11
Dependent Claim
18 words
A composition according to claim 1, further comprising fillers selected from the group comprising: clay, mica, and talc.
Claim 12
Dependent Claim
20 words
A composition according to claim 7, wherein said fillers are present in an amount up to 20% of the glass.
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) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |