EP0134973A2
Expired / Lapsed
EP
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Stampable sheets of fiber mat reinforced poly(arylene sulfide) and method of preparation
Assignee: Phillips Petroleum Co
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Filing: 1984-07-05
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Granted: —
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Expires: 2004-07-05
Abstract
Abstract A method for preparing stampable poly(phenylene sulfide)/fiber mat composites in which a fiber mat chosen from glass, carbon, fiber forming inorganic materials, wholly aromatic polyamide, or mixtures thereof is surrounded with a matrix of poly(phenylene sulfide) having flow rate in a range of about 4 to about 350 g 10 min. as determined by ASTM D 1238, modified to a temperature of 316°C and a total pressure of 5.0 kg. A stampable PPS!fiber mat composite produced by such a method.
Inventors
- 👤 Martin Ma Chen-Chi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 04:10
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; B; B29; B29B; B29B15/00; B29B15/08; B29B15/10; B29B15/12; B29B15/122; B29B15/125; B29K; B29K2081/00; C08J2381/00; C08J2381/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
66 words
A stampable polyarylene sulfide (PAS) fiber mat composite comprising fiber chosen from among fiber forming inorganic materials, wholly aromatic polyamide, and mixtures thereof within a matrix of PAS wherein said PAS has a flow rate in a range of 4 to 350 g /10 min. as determined by ASTM D 1238 modified to a temperature of 316 0 C and a total pressure of 5.0 kg.
Claim 2
Dependent Claim
66 words
A stampable polyarylene sulfide (PAS) fiber mat composite comprising fiber chosen from among fiber forming inorganic materials, wholly aromatic polyamide, and mixtures thereof within a matrix of PAS wherein said PAS has a flow rate in a range of 4 to 350 g /10 min. as determined by ASTM D 1238 modified to a temperature of 316 0 C and a total pressure of 5.0 kg.
Claim 3
Dependent Claim
24 words
The composite of claim 1 characterized in that the flow rate of said PAS is in a range of 4 to 80 g/10 min.
Claim 4
Dependent Claim
51 words
The composite of claim 1 or 2 characterized in that said fiber mat is composed of cut fibers having a length in a range of 0.64 to 25.4 cm; in particular wherein said fiber mat is composed of cut fiber having a length in a range of 1.2 to 5.1 cm.
Claim 5
Dependent Claim
26 words
4 . The composite of any of the preceding claims characterized in that said fiber is glass or carbon or a mixture of carbon and glass.
Claim 6
Dependent Claim
16 words
The composite of any of the preceding claims characterized in that said fiber mat is metalized.
Claim 7
Dependent Claim
58 words
The composite of any of the preceding claims characterized in that said fiber mat is of wholly aromatic polyamide fibers or wherein said fiber mat is of metal fibers or wherein said fiber mat is of fiber-forming inorganic materials chosen from among beryllia, magnesia, alumina, silica, zirconia, thoria, boron, boron nitride, boron carbide, silicon carbide, and alumino -silicate.
Claim 8
Dependent Claim
17 words
The composite of any of the preceding claims characterized in that said PAS is polyphenylene sulfide (PPS).
Claim 9
Dependent Claim
65 words
A process for preparing stampable PAS/fiber mat composites comprising surrounding a fiber mat chosen from fiber forming, inorganic materials, wholly aromatic polyamide, and a mixture thereof with a matrix of PAS having a flow rate in a range of 4 to 350 g/10 min. as determined by ASTM D 1238, modified to a temperature of 316 0 C and a total pressure of 5.0 kg.
Claim 10
Dependent Claim
65 words
A process for preparing stampable PAS/fiber mat composites comprising surrounding a fiber mat chosen from fiber forming, inorganic materials, wholly aromatic polyamide, and a mixture thereof with a matrix of PAS having a flow rate in a range of 4 to 350 g/10 min. as determined by ASTM D 1238, modified to a temperature of 316 0 C and a total pressure of 5.0 kg.
Claim 11
Dependent Claim
46 words
The process of claim 8 characterized in that surrounding said fiber mat with PAS comprises contacting at least one sheet of PAS to at least one side of said fiber mat while applying heat and pressure to cause said PAS to flow around said fiber mat.
Claim 12
Dependent Claim
21 words
The process of claim 9 characterized in that a sheet of PAS is contacted with both sides of said fibrous mat.
Claim 13
Dependent Claim
66 words
The process of claim 9 or 10 characterized in that surrounding said fiber mat with PAS comprises (1) impregnating said mat with a slurry of PAS and a carrier liquid, (2) drying said impregnated mat to remove carrier liquid thereby producing a dry, impregnated mat, and (3) applying heat and pressure to said dried, impregnated mat to cause said PAS to flow around said fiber mat.
Claim 14
Dependent Claim
19 words
The process of any of claims 8 to 11 characterized as defined in any of claims 2 to 7.
Claim 15
Dependent Claim
63 words
The process for preparing stamped PAS/fiber mat composites characterized by subjecting at least one stampable PAS/fiber mat composite as defined in any of claims 1 to 12 to heating to a temperature range suitable for stamping and subsequently while the composite remains at said stamping temperature supplying pressure on the composite material within a stamping press to form an object from said composite.
References Cited (Backward Citations)
No citation records indexed.
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