EP0388969A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Composites having reduced microcracking and methods of making the same
Assignee: Phillips Petroleum Co
•
Filing: 1990-03-23
•
Granted: —
•
Expires: 2010-03-23
Abstract
Abstract Reinforced plastic composites having reduced microcracking formed of continuous fibrous reinforcing material and matrices of poly(arylene sulfide)-poly(aromatic sulfide/sulfone) resin mixtures and pultrusion methods of producing such composites are provided.
Inventors
- 👤 Howard Franklin Efner
- 👤 Mark Lee Stone
- 👤 Roy Franklin Wright
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 17:52
CPC Classifications
C; C08; C08L; C08L81/00; C08L81/02; C08L81/04; C08L81/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
36 words
A reinforced plastic composite comprised of at least one continuous strand of fibrous reinforcing material in a thermoplastic resin matrix, said thermoplastic resin being comprised of a mixture of poly(arylene sulfide) resin and poly(aromatic sulfide/sulfone) resin.
Claim 2
Dependent Claim
36 words
A reinforced plastic composite comprised of at least one continuous strand of fibrous reinforcing material in a thermoplastic resin matrix, said thermoplastic resin being comprised of a mixture of poly(arylene sulfide) resin and poly(aromatic sulfide/sulfone) resin.
Claim 3
Dependent Claim
35 words
The composite of claim 1 wherein said poly(arylene sulfide) resin and said poly(aromatic sulfide/sulfone) resin are present in said mixture in a weight ratio, respectively, in the range of from about 30:1 to about 1:30.
Claim 4
Dependent Claim
55 words
The composite of claim 1 or 2 wherein said thermoplastic resin mixture is present in said composite in an amount in the range of from about 20% to about 90% by weight, and said fibrous reinforcing material is present therein in an amount in the range of from about 10% to about 80% by weight.
Claim 5
Dependent Claim
15 words
The composite of one of claims 1-3 wherein said poly(arylene sulfide) resin is poly(phenylene sulfide).
Claim 6
Dependent Claim
15 words
The composite of one of claims 1-3 wherein said poly(aromatic sulfide/sulfone) resin is poly(phenylene sulfide/sulfone).
Claim 7
Dependent Claim
37 words
The composite of claim 4 and 5 wherein said poly(phenylene sulfide) resin and said poly(phenylene sulfide/sulfone) resin are present in said mixture in a weight ratio, respectively, in the range of from about 9:1 to about 2:1.
Claim 8
Dependent Claim
55 words
The composite of one of claims 1-6 wherein said thermoplastic resin mixture is present in said composite in an amount in the range of from about 30% to about 60% by weight, and said fibrous reinforcing material is present therein in an amount in the range of from about 40% to about 70% by weight.
Claim 9
Independent Claim
70 words
A method of producing a reinforced plastic composite having reduced microcracking comprising pulling at least one continuous strand of fibrous reinforcing material impregnated with a thermoplastic resin through a heated forming die having a temperature such that said thermoplastic resin reaches the molten state and a fiber reinforced plastic composite is formed, said thermoplastic resin and said fibrous reinforcing material being as defined in one of claims 1 to 7.
Claim 10
Dependent Claim
17 words
A fiber reinforced plastic composite having reduced microcracking produced in accordance with the method of claim 8.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.