# US 10,370,522 B2 · Polyphenylene sulfide resin composition, and moulding and manufacturing process for moulding thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,522 B2 - Document ID: US10370522B2 - Status: Granted - Kind: B2 - Application number: 14/912,859 - Filed: 2014-08-05 - Published: 2016-07-21 - Granted: 2019-08-06 - Earliest claimed: 2013-08-22 - Assignees: Toray Industries, Inc. - Applicants: Toray Industries, Inc. - Inventors: Kai Peng; Xianwen Tang; Qiang Liu; Fen Ouyang; Shunji Kono; Masashi Matsuda; Ping Hu; Ying Wai Julian Chan - Web page: https://patentgrep.com/patent/US10370522B2 ## CPC - C08K 7/14: Glass - B29C 45/14008: {Inserting articles into the mould (B29C45/14827 takes precedence)} - C08G 75/02: Polythioethers - C08L 81/02: Polythioethers; Polythioether-ethers - C08L 81/04: Polysulfides - B29K 2081/04: {Polysulfides, e.g. PPS, i.e. polyphenylene sulfide or derivatives thereof} - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS ## Abstract The invention provides a polyphenylene sulfide resin composition which comprises polyphenylene sulfide resin and a deformed cross-section glass fiber, wherein the chlorine content of the polyphenylene sulfide resin composition is equal to or lower than 1,000 ppm. The obtained polyphenylene sulfide resin composition is excellent in flowability, toughness and rigidity. The invention further provides a molding prepared from the polyphenylene sulfide resin composition and a manufacturing process for the polyphenylene sulfide resin composition. The polyphenylene sulfide resin composition is particularly suitable for products for forming frames of a portable computer, a mobile phone and a portable electronic device. ## Claims ### Claim 1 A polyphenylene sulfide resin composition, comprising: polyphenylene sulfide resin (A), a deformed cross-section glass fiber (B), and amorphous resin (C) having a glass-transition temperature a equal to or higher than 100° C. and being selected from polycarbonate, polyphenyl ether, amorphous polyarylate, polysulfone, polyether sulfone, polyetherimide, polyimide and one or more copolymers thereof, wherein: the chlorine content of the polyphenylene sulfide resin composition is equal to or lower than 1,000 ppm, and the recrystallization temperature of the polyphenylene sulfide resin composition is equal to or higher than 210° C. and lower than 220° C. ### Claim 2 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, wherein the recrystallization temperature of the polyphenylene sulfide resin composition is equal to or higher than 210° C. and lower than 215° C. ### Claim 3 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, wherein the polyphenylene sulfide is an end-capped polyphenylene sulfide. ### Claim 4 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, comprising 50 to 200 weight parts of the deformed cross-section glass fiber (B) relative to 100 weight parts of the polyphenylene sulfide resin (A). ### Claim 5 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, comprising 1.5 to 35 weight parts of the amorphous resin (C) with the glass-transition temperature being equal to or higher than 100° C. relative to 100 weight parts of the polyphenylene sulfide resin (A). ### Claim 6 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, wherein the amorphous resin (C) with the glass-transition temperature being equal to or higher than 100° C. generates a dispersion of islands in the polyphenylene sulfide resin composition, and the average area of an island in a cross section is smaller than one μm2. ### Claim 7 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, wherein the flatness ratio of the deformed cross-section glass fiber (B) is equal to or larger than 1.5. ### Claim 8 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, wherein the melting viscosity of a capillary rheometer of the polyphenylene sulfide resin composition, which has the shearing rate of 1,000 s−1 under 315° C., is lower than 180 Pa·s. ### Claim 9 (depends on 1) The polyphenylene sulfide resin composition according to claim 1, further comprising an elastomer. ### Claim 10 (depends on 9) The polyphenylene sulfide resin composition according to claim 9, wherein the elastomer is one or more of an olefin elastomer, a modified olefin elastomer and a styrene elastomer. ### Claim 11 (depends on 1) A moulding prepared from the polyphenylene sulfide resin composition according to claim 1. ### Claim 12 (depends on 11) The moulding according to claim 11, wherein the thickness of the moulding is equal to or lower than 1.5 mm. ### Claim 13 (depends on 11) The moulding according to claim 11, wherein the crystallization degree of the moulding is smaller than 50 percent. ### Claim 14 (depends on 11) A product for forming frames of a portable computer, a mobile phone or a portable electronic device, which is prepared from the moulding according to claim 11. ### Claim 15 (depends on 11) A manufacturing process of the moulding according to claim 11, wherein the manufacturing process adopts an in-mould insert injection or in-mould transfer moulding technology, and comprises the following steps: firstly putting a cut plastic thin film into a mould, and then performing injection moulding on the polyphenylene sulfide resin composition by an injection moulding machine; the temperature of the mould is equal to or lower than the glass-transition temperature of the polyphenylene sulfide resin (A). ### Claim 16 (depends on 15) The manufacturing process of the moulding according to claim 15, wherein the temperature of the mould is 5 to 95° C. ### Claim 17 (depends on 1) The polyphenylene resin composition according to claim 1, wherein the polyphenylene sulfide resin is a polymer that comprises a repeating unit represented formula (I), in an amount of 70 mole percent or more. ### Claim 18 (depends on 17) The polyphenylene resin composition according to claim 17, wherein the polyphenylene sulfide resin is a polymer that comprises, in addition to the repeating unit represented formula (I), one or more repeating units selected from the group comprising formulas (II), (III), (IV), (V), (VI), (VII) and (VIII) having structures listed below: