EP0182335A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fiber reinforced thermoplastic articles and process for the preparation thereof
Assignee: Phillips Petroleum Co
•
Filing: 1985-11-18
•
Granted: —
•
Expires: 2005-11-18
Abstract
Abstract Processes for preparing fiber reinforced thermoplastic articles are provided, for example, thermoplastic fibers and reinforcement fibers can be intermingled to produce a composite yarn, which is used to weave a fabric, then the fabric heated to produce a reinforced article. As another example, thermoplastic yarn and reinforcement yarn can be woven together to produce a composite fabric, which, upon heating, produces a reinforced article.
Inventors
- 👤 James Edward O'connor
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 18:33
CPC Classifications
B; B29; B29B; B29B15/00; B29B15/08; B29B15/10; B29B15/105; C; C08; C08J; C08J5/00; C08J5/04; C08J5/047; C08J5/048; D; D03; D03D; D03D1/00; D03D15/00; D03D15/40; D03D15/47; D03D15/50; D03D15/587; B29K; B29K2281/00; D10; D10B; D10B2101/00; D10B2101/10; D10B2101/12; D10B2401/00; D10B2401/04; D10B2401/041; D10B2505/00; D10B2505/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636; Y10T428/29; Y10T428/2904; Y10T428/2905; Y10T428/2913; Y10T428/2918; Y10T428/2929; Y10T428/2931; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/313; Y10T442/3138
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
181 words
A process for the preparation of a fiber reinforced thermoplastic article, said process comprising: (a) producing an intermediate product from fibrous materials by one of the following procedures (aa) (1) intermingling at least one fibrous thermoplastic material and at least one fibrous reinforcement material to produce a composite yarn; (2) weaving said composite yarn into a fabric as said intermediate product or (bb) (1) intermingling at least one fibrous thermoplastic material and at least one fibrous reinforcement material to produce a composite yarn; (2) passing said composite yarn to a staple cutter to produce a composite staple; (3) laying up said composite staple to produce a batt of said composite staple as said intermediate product or (cc) weaving at least one thermoplastic yarn of thermoplastic material with at least one reinforcement yarn of reinforcement material to produce a composite fabric as said intermediate product, (b) heating said intermediate product to a temperature at least as high as the melting point of said thermoplastic material for a time sufficient to allow intimate contact between said thermoplastic material and said fibrous reinforcement material.
Claim 2
Dependent Claim
181 words
A process for the preparation of a fiber reinforced thermoplastic article, said process comprising: (a) producing an intermediate product from fibrous materials by one of the following procedures (aa) (1) intermingling at least one fibrous thermoplastic material and at least one fibrous reinforcement material to produce a composite yarn; (2) weaving said composite yarn into a fabric as said intermediate product or (bb) (1) intermingling at least one fibrous thermoplastic material and at least one fibrous reinforcement material to produce a composite yarn; (2) passing said composite yarn to a staple cutter to produce a composite staple; (3) laying up said composite staple to produce a batt of said composite staple as said intermediate product or (cc) weaving at least one thermoplastic yarn of thermoplastic material with at least one reinforcement yarn of reinforcement material to produce a composite fabric as said intermediate product, (b) heating said intermediate product to a temperature at least as high as the melting point of said thermoplastic material for a time sufficient to allow intimate contact between said thermoplastic material and said fibrous reinforcement material.
Claim 3
Dependent Claim
20 words
A process in accordance with claim 1 wherein said fibrous thermoplastic material and said fibrous reinforcement material comprise continuous filaments.
Claim 4
Dependent Claim
17 words
A process in accordance with claim 1 wherein said fibrous thermoplastic material is an arylene sulfide polymer.
Claim 5
Dependent Claim
47 words
A process in accordance with claim 3 wherein said arylene sulfide polymer is poly(phenylene sulfide) having a melt flow of about 75 to about 800 grams per 10 minutes, determined according to ASTM D1238 modified to a temperature of 316°C and a total weight of 5.0 kg.
Claim 6
Dependent Claim
39 words
A process in accordance with claim 1 wherein said fibrous reinforcement material is selected from the group consisting of: glass, carbon, aramid, boron, boron nitride, ceramic, iron, nickel, chromium, copper, aluminum, and mixtures of any two or more thereof.
Claim 7
Dependent Claim
20 words
A process in accordance with claim 2 wherein said intermingling comprises braiding said fibrous materials to produce said composite yarn.
Claim 8
Dependent Claim
31 words
A process in accordance with claim 1 wherein the weight % of said fibrous reinforcement material is about 40 to about 80%, based on the total weight of said composite yarn.
Claim 9
Dependent Claim
45 words
A process in accordance with claim 3 wherein said heating is carried out at a temperature of about 285 to about 350°C for about 1 minute to about 60 minutes under sufficient pressure to maintain intimate contact between said thermoplastic material and said reinforcement material.
Claim 10
Dependent Claim
25 words
A process in accordance with one of the preceding claims wherein said batt produced in step a (bb) is needle- punched prior to step (b).
Claim 11
Dependent Claim
16 words
The article produced in accordance with the process of one of the claims 1 to 9.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.