Patent EP0211678A2 successfully refreshed from Google Patents.
EP0211678A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A thermoplastic, injection moldable composite
Assignee: BP Corp North America Inc
•
Filing: 1986-08-11
•
Granted: —
•
Expires: 2006-08-11
Abstract
Abstract Thermoplastic, injection moldable composites comprising at least one poly(aryl ether ketone) having silicon carbide whiskers dispersed therein exhibit excellenttensile properties coupled with high elongation relative to poly(aryl ether ketone) composites with other inorganic fibers. The composites are useful for making articles such as electrical connectors.
Inventors
- 👤 Lloyd Mahlon Robeson
- 👤 James Elmer Harris
- 👤 Michael John Michno
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:15
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08G; C08G61/00; C08G61/12; C08G61/127; C08G65/00; C08G65/34; C08G65/38; C08G65/40; C08G65/4012
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
18 words
A thermoplastic, injection moldable composite comprising at least one poly(aryl ether ketone) having silicon carbide whiskers dispersed therein.
Claim 2
Dependent Claim
18 words
A thermoplastic, injection moldable composite comprising at least one poly(aryl ether ketone) having silicon carbide whiskers dispersed therein.
Claim 3
Dependent Claim
72 words
A composite as claimed in claim 1 wherein the poly(aryl ether ketone) contains repeating units of one or more of the following formulae: wherein Ar is independently a divalent aromatic radical selected from phenylene, biphenylene or naphthylene, X is independently-O-, or a direct bond and n is an integer of from 0 to 3, b, c, d and e are 0 to 1 and a is an integer of 1 to 4.
Claim 4
Dependent Claim
23 words
A composite as claimed in claim 1 wherein the poly(aryl ether ketones) have repeating units of one or more of the following formula:
Claim 5
Dependent Claim
25 words
A composite as claimed in any one of the preceeding claims wherein said silicon carbide whiskers have an L/D ratio between 3 and about 200.
Claim 6
Dependent Claim
37 words
S. A composite as claimed in any one of the preceeding claims wherein said silicon carbide whiskers are present in an amount between about 2 and about 50 wt. % based on the weight of the composite.
Claim 7
Dependent Claim
23 words
A composite as claimed in claim 5, wherein said whiskers are present in an amount between about 5 and about 35 wt. %.
Claim 8
Dependent Claim
20 words
A composite as claimed in claim 6, wherein said whiskers are present in an amount of about 20 wt. %.
Claim 9
Dependent Claim
49 words
A composite as claimed in any one of the preceeding claims further comprising, in an amount up to about 50 wt. % based on the total weight of the composite, a polymer selected from the group consisting of poly(etherimides), polyimides, polysulfone, poly(ethersulfone), poly(aryl ether sulfone), polyarylates, and poly(phenylene sulfide).
Claim 10
Dependent Claim
18 words
A composite as claimed in any one of the preceeding claims in the form of an electrical connector.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.