Patent US5369309A successfully refreshed from Google Patents.
EP0274754A2
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Poly (arylene sulfide ketone) composites
Assignee: Phillips Petroleum Co
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Filing: 1987-12-30
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Granted: —
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Expires: 2007-12-30
Abstract
Abstract A process to form a fiber-reinforced composite having a continuous thermoplastic matrix of poly(arylene sulfide ketone) resins is provided. The composite is useful to form shaped articles with high temperature resistance. The composite can be prepared by consolidating under heating a multi-layer stack of resin sheets and fiber reinforcement sheets. The poly(arylene sulfide ketone) resins can be melt-stabilized through treatment with a water-soluble salt of an alkaline earth metal. The composite has excellent thermal properties such as heat distortion temperature.
Inventors
- 👤 Jon Frederick Geibel
- 👤 Roger Grant Gaughan
- 👤 Michael Duane Cliffton
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 04:09
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; C; C08; C08J; C08J5/00; C08J5/04; C08K; C08K7/00; C08K7/02; C08J2381/00; C08J2381/02; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/30; Y10T428/31504; Y10T428/31533; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/60; Y10T442/674
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
A process comprising: a. forming a stack having a multiplicity of layers, at least one layer of the stack being a layer comprising a fiber reinforcement and at least one layer of the stack being a layer comprising a poly(arylene sulfide ketone) resin; b. heating the stack to a temperature to cause the at least one resin layer to become flowable, and to form a heated stack; c. compressing the heated stack sufficiently to consolidate the layers and to form a consolidated stack characterized by a continuous thermoplastic resin matrix containing fiber reinforcement, and d. cooling the consolidated stack.
Claim 2
Dependent Claim
99 words
A process comprising: a. forming a stack having a multiplicity of layers, at least one layer of the stack being a layer comprising a fiber reinforcement and at least one layer of the stack being a layer comprising a poly(arylene sulfide ketone) resin; b. heating the stack to a temperature to cause the at least one resin layer to become flowable, and to form a heated stack; c. compressing the heated stack sufficiently to consolidate the layers and to form a consolidated stack characterized by a continuous thermoplastic resin matrix containing fiber reinforcement, and d. cooling the consolidated stack.
Claim 3
Dependent Claim
90 words
A process of Claim 1 wherein the poly(arylene sulfide ketone) resin comprises a resin containing units of the structural formula: said resin having an inherent viscosity of greater than 0.5 dl/g, a melting temperature in the range of from 300° to about 380°C and a melt stability such that the melt flow rate ratio, FR₁₅/FR₅, is at least 0.25 where FR₁₅ and FR₅ are the flow rates of the resin as measured by ASTM D 1238 after said resin is held at melt temperature for 15 and 5 minutes, respectively.
Claim 4
Dependent Claim
44 words
A process of Claim 2 wherein the poly(arylene sulfide ketone) resin is further characterized by a calcium concentration on an elemental basis in the range of 200 to 10,000 parts per million and an inherent viscosity in the range of 0.5 to 2 dl/g.
Claim 5
Dependent Claim
57 words
A process of Claim 1, 2 or 3 wherein the fiber reinforcement is selected from the group consisting of woven fiber mat, chopped fiber mat, continuous strand mat and non-woven fiber mat and wherein the amount of said fiber reinforcement is about 30 to about 80 weight percent, based on the total weight of the consolidated stack.
Claim 6
Dependent Claim
64 words
A process of one of the preceding claims wherein the stack comprises a plurality of layers of a fiber reinforcement selected from the group consisting of glass fiber, carbon fiber, aromatic polyamide fiber, elemental metal fiber, elemental metal alloy fiber, beryllia fiber, magnesia fiber, alumina fiber, silica fiber, zirconia fiber, thoria fiber, boron nitride fiber, boron carbide fiber, silicon carbide fiber and aluminosilicate fiber.
Claim 7
Dependent Claim
105 words
A composition comprising a fabric of fibrous reinforcing material embedded in a continuous matrix of thermoplastic resin, wherein said resin comprises a poly(arylene sulfide ketone); in particular wherein the poly(arylene sulfide ketone) resin comprises a poly(phenylene sulfide ketone) resin having an inherent viscosity of greater than 0.5 dl/g, a melting temperature in the range of from 300 to 425°C, and a melt stability such that the melt flow rate ratio, FR₁₅/FR₅, is at least 0.25 where FR₁₅ and FR₅ are the flow rates of the resin as measured by ASTM D 1238 after said resin is held at 371°C for 15 to 5 minutes, respectively.
Claim 8
Dependent Claim
105 words
A composition comprising a fabric of fibrous reinforcing material embedded in a continuous matrix of thermoplastic resin, wherein said resin comprises a poly(arylene sulfide ketone); in particular wherein the poly(arylene sulfide ketone) resin comprises a poly(phenylene sulfide ketone) resin having an inherent viscosity of greater than 0.5 dl/g, a melting temperature in the range of from 300 to 425°C, and a melt stability such that the melt flow rate ratio, FR₁₅/FR₅, is at least 0.25 where FR₁₅ and FR₅ are the flow rates of the resin as measured by ASTM D 1238 after said resin is held at 371°C for 15 to 5 minutes, respectively.
Claim 9
Dependent Claim
33 words
A composition as in Claim 6 wherein the poly(phenylene sulfide ketone) resin contains calcium at a concentration, on an elemental basis, in the range of about 200 to about 10,000 parts per million.
Claim 10
Dependent Claim
62 words
A composition as in Claim 6 or 7 wherein the fibrous reinforcing material comprises a mat selected from the group consisting of woven fiber mat, chopped fiber mat, continuous strand mat and non-woven fiber mat and said fibrous reinforcing material is present in the range of about 30 to about 80 by weight percent, based on the total weight of the composition.
Claim 11
Dependent Claim
55 words
A composition as in Claim 6,7 or 8 wherein the mat is made from a fiber selected from the group consisting of glass fiber, carbon fiber, aromatic polyamide fiber, metal fiber, beryllia fiber, magnesia fiber, alumina fiber, silica fiber, zirconia fiber, thoria fiber, boron nitride fiber, boron carbide fiber, silicon carbide fiber and aluminosilicate fiber.
Claim 12
Dependent Claim
33 words
A composition as in one of claims 6 - 9 wherein the poly(arylene sulfide ketone) resin is a poly(phenylene sulfide ketone) resin which has a melt flow rate ratio, FR₁₅/FR₅, greater than 0.50.
References Cited (Backward Citations)
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