Patents Assigned to Mitsubishi Engineering-Plastics Corporation
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Publication number: 20200291226Abstract: A polycarbonate resin composition comprising, 100 mass parts of (A1) a polycarbonate resin that contains a polycarbonate resin having a structural unit of the following general formula (1) and (A2) a polycarbonate resin having a structural unit of the general formula (2) in a mass ratio (A1)/(A2) of 100/0 to 10/90; 3 to 20 mass parts of a phosphorus flame retardant (B); 2 to 20 mass parts of a silicone flame retardant (C); and 3 to 100 mass parts of an inorganic filler (D), wherein the phosphorus flame retardant (B) is a phosphazene compound and/or a condensed phosphate ester, [C1]Type: ApplicationFiled: August 30, 2017Publication date: September 17, 2020Applicant: Mitsubishi Engineering-Plastics CorporationInventor: Minoru SOMA
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Publication number: 20200247991Abstract: A resin composition contains, per 100 parts by mass of a resin ingredient composed of 10 to 60 parts by mass of a polyphenylene ether resin and 90 to 40 parts by mass of a polyamide resin: 0.01 to 1.0 parts by mass of a compatibilizer; 0.01 to 1.0 parts by mass of a phenolic antioxidant represented by formula (1); 0.01 to 1.0 parts by mass of a phosphorus-containing antioxidant; and 0.01 to 1.0 parts by mass of an amine-based antioxidant, having a mass ratio given by phenolic antioxidant represented by formula (1)/phosphorus-containing antioxidant/amine-based antioxidant of 1/0.1 to 2.0/0.1 to 2.0.Type: ApplicationFiled: July 24, 2018Publication date: August 6, 2020Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventor: Kenichi YANAGISAWA
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Publication number: 20200224028Abstract: Provided is a thermoplastic resin composition capable of yielding a resin molding well suppressed from warping after heating, while successfully maintaining high mechanical strength, and such resin molding. Provided is a thermoplastic resin composition containing LDS and capable of yielding a resin molding on which a plating layer can be formed, and, well suppressed from warping after heating while successfully maintaining high mechanical strength, such resin molding, and methods for manufacturing a plated resin molding and a portable electronic device part. The thermoplastic resin composition containing 10 to 100 parts by mass of a reinforcing filler, per 100 parts by mass of a crystalline thermoplastic resin, the reinforcing filler containing a reinforcing fiber and a glass flake having a thickness of 0.1 to 2 ?m, with reinforcing fiber/glass flake, which is mass ratio of the reinforcing fiber and the glass flake, adjusted to 0.1 to 1.Type: ApplicationFiled: September 28, 2018Publication date: July 16, 2020Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Ryusuke YAMADA, Yuki HIWATASHI
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Publication number: 20200190320Abstract: A polycarbonate resin composition for an optical component, the composition comprising 0.1 to 4 parts by mass of a polyalkylene glycol (B) and 0.005 to 0.5 parts by mass of a phosphorus-containing stabilizer (C) relative to 100 parts by mass of a polycarbonate resin (A), wherein the polyalkylene glycol (B) contains 40 to 80 mol % of a tetramethylene glycol unit (b1), 5 to 45 mol % of a (2-methyl)ethylene glycol unit (b2), and 5 to 50 mol % of an ethylene glycol unit (b3), and wherein at least two units selected from the tetramethylene glycol unit (b1), the (2-methyl)ethylene glycol unit (b2), and the ethylene glycol unit (b3) are contained as a copolymer component obtained by copolymerizing them.Type: ApplicationFiled: March 26, 2018Publication date: June 18, 2020Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Keisuke TOMITA, Akira OHSHIMA
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Patent number: 10626269Abstract: Provided are: a polyester resin composition that exhibits excellent flame retardancy and melt thermal stability and also exhibits excellent laser markability; and a method for producing same. The present invention provides: a polyester resin composition containing 3 to 60 parts by mass of a brominated polyacrylate flame retardant (B) relative to 100 parts by mass of a thermoplastic polyester resin (A), this brominated polyacrylate flame retardant (B) having a Na element concentration of 5 to 4000 ppm, as measured by X-Ray fluorescence analysis; and a production method including washing the brominated polyacrylate flame retardant (B) with hot water having a temperature of 40° C. to 100° C., then drying the washed product, and then mixing the dried product with the thermoplastic polyester resin (A).Type: GrantFiled: August 26, 2016Date of Patent: April 21, 2020Assignee: Mitsubishi Engineering-Plastics CorporationInventors: Yasushi Yamanaka, Masaya Yamashita, Kouichi Sakogawa, Osamu Takise
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Publication number: 20200115542Abstract: To provide a polyacetal resin composition which is good sliding characteristics and is less likely to produce the blister; a molded article; and a method for manufacturing the polyacetal resin composition. The polyacetal resin composition containing: (A) 100 parts by mass of a polyacetal resin; (B1) a polyolefin resin grafted with a silicone compound; (B2) a non-grafted silicone compound; and (C) 0.5 to 1.8 parts by mass of a polyolefinic lubricant, with a total of content of the silicone compound in the (B1) polyolefin resin and content of the (B2) non-grafted silicone compound, being adjusted to 0.6 to 2.5 parts by mass, per 100 parts by mass of the (A) polyacetal resin, and with (B1)/(B2), which is a ratio by mass of the content of the (B1) polyolefin resin and the content of the (B2) non-grafted silicone compound, being adjusted to 68/32 to 45/55.Type: ApplicationFiled: June 5, 2018Publication date: April 16, 2020Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Kunihiko FUJIMOTO, Makiko OOSHIMA
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Patent number: 10619031Abstract: Provided is resin molded articles having large elastic modulus, and good appearance. A thermoplastic resin composition contains 80 to 120 parts by weight of a carbon fiber and 0.1 to 3.0 parts by weight of a black colorant, per 100 parts by weight of a (A) crystallizable thermoplastic resin which shows a semicrystallization time (ST (P)) of 20 to 500 seconds, wherein the semicrystallization time is measured by depolarization photometry, under conditions that a sample melting temperature is 20 to 40° C. higher than a melting point of the crystallizable thermoplastic resin, a sample melting time is 3 minutes, and an oil bath temperature for crystallization is 140° C.Type: GrantFiled: June 13, 2014Date of Patent: April 14, 2020Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Takahiro Takano, Ryusuke Yamada
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Patent number: 10604649Abstract: Provided is a polyester resin composition for laser direct structuring, which exhibits high platability and excellent mechanical properties. This polyester resin composition for laser direct structuring is characterized by containing a laser direct structuring additive (C) at a quantity of 1 to 20 parts by mass relative to a total of 100 parts by mass of a thermoplastic polyester resin (A) and a thermoplastic resin (B) having a water absorption rate of 0.15 mass % or more, as measured using the ISO 62A method.Type: GrantFiled: August 9, 2016Date of Patent: March 31, 2020Assignee: Mitsubishi Engineering-Plastics CorporationInventor: Yasushi Yamanaka
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Publication number: 20200071519Abstract: Provided is a polycarbonate resin composition that exhibits an excellent flame retardancy and impact resistance as well as an excellent hue and moist heat resistance. The polycarbonate resin composition characteristically contains, per 100 mass parts of a polycarbonate resin (A), 0 to 40 mass parts of a graft copolymer (B) comprising an aromatic vinyl monomer component (b1), a vinyl cyanide monomer component (b2), and a diene rubber polymer component (b3); 10 to 30 mass parts of a phosphate ester compound (C); 0.001 to 1.0 mass parts of a phosphite antioxidant (D); and 0.00001 to 0.1 mass parts of 2,4-di-tert-butylphenol (E).Type: ApplicationFiled: October 18, 2017Publication date: March 5, 2020Applicant: Mitsubishi Engineering-Plastics CorporationInventor: Kosei HINO
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Patent number: 10501621Abstract: A polyester resin composition is provided that exhibits a low shrinkage ratio and excellent mold release properties while maintaining a high mechanical strength, that also provides excellent surface properties and an excellent appearance for a molded article and an excellent appearance when vapor deposited, and that resists the production of fogging even during high-temperature use. An injection molded article, a light-reflecting base body, and a light-reflecting body are also provided. The polyester resin composition characteristically contains 0.1 to 20 mass parts of (B) an inorganic filler having an average primary particle diameter of not more than 2.5 ?m, per 100 mass parts of (A) a resin component containing (A1) polybutylene terephthalate resin pellets and (A2) a polyester resin powder.Type: GrantFiled: July 1, 2015Date of Patent: December 10, 2019Assignee: Mitsubishi Engineering-Plastics CorporationInventor: Fumihiro Mutou
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Patent number: 10472536Abstract: Making formation of a plated layer on a surface of a resin molded article possible, without adding the LDS additive to the thermoplastic resin composition. Provided is a composition for forming a laser direct structuring layer, the composition comprising a water-compatible organic substance, water, and a laser direct structuring additive. Further provided is a kit having the composition for forming a laser direct structuring layer and a method for manufacturing a resin molded article with a plated layer, which uses the composition for forming a laser direct structuring layer.Type: GrantFiled: June 26, 2015Date of Patent: November 12, 2019Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Masahide Sugiyama, Ryusuke Yamada, Tatsuya Kikuchi, Yasushi Yamanaka
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Patent number: 10472477Abstract: Provided are a polycarbonate resin composition for a thin optical component that has a high transmittance and a good hue, and a thin optical component. The polycarbonate resin composition for a thin optical component contains, per 100 mass parts of a polycarbonate resin (A), 0.1 to 4 mass parts of a polyalkylene glycol copolymer (B) having a linear alkylene ether unit (B1) given by general formula (I) and a branched alkylene ether unit (B2) selected from units given by general formulas (II-1) to (II-4), and 0.005 to 0.5 mass parts of a phosphorus stabilizer (C).Type: GrantFiled: December 14, 2015Date of Patent: November 12, 2019Assignee: Mitsubishi Engineering-Plastics CorporationInventor: Keisuke Tomita
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Publication number: 20190331984Abstract: Provided is a molded article which contains a first enclosure; a second enclosure adjoined with the first enclosure; and a transparent member held by the second enclosure, each of the first enclosure and the second enclosure being independently made from a resin composition that contains a polyamide resin having a semi-crystallization time of 10 to 60 seconds, and a melting point of 200 to 280° C., and the transparent member having a pencil hardness of 8H or larger, and a linear expansion coefficient of 1×10?6 to 9×10?6/° C., where the semi-crystallization time means a time measured by depolarization photometry at a temperature 20° C. higher than the melting point of the polyamide resin, for a melting time of polyamide resin of 5 minutes, and at a temperature of crystallization bath of 150° C.Type: ApplicationFiled: September 26, 2017Publication date: October 31, 2019Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventor: Fumihito OKAMOTO
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Patent number: 10400090Abstract: Provided is a thermoplastic resin composition a resin molded article of which has excellent mechanical strength. The thermoplastic resin composition comprising: a thermoplastic resin; relative to 100 parts by weight of the thermoplastic resin, 0.01 to 30 parts by weight of an additive having a Mohs hardness of 5.5 or larger; and 10 to 200 parts by weight of glass fiber, wherein the glass fiber comprises SiO2 and Al2O3 in a proportion of 60 to 70% by weight of SiO2 and 20 to 30% by weight of Al2O3.Type: GrantFiled: September 5, 2013Date of Patent: September 3, 2019Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Masaki Tamura, Naohisa Akashi
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Patent number: 10385207Abstract: Provided are: a polycarbonate resin composition which has excellent mechanical properties and wet heat resistance while being free from the problem of mold contamination due to mold deposits; and a production method which is capable of producing this polycarbonate resin composition with high productivity. A polycarbonate resin composition containing 60% to 95% by mass of a polycarbonate resin (A) and 40% to 5% by mass of an emulsion polymerized styrene-based resin (B), based on 100% by mass of a total of (A) and (B), wherein the emulsion polymerized styrene-based resin (B) is a graft copolymer of a styrenic monomer-vinyl cyanide monomer and/or an alkyl (meth)acrylate monomer-rubbery polymer; and a total amount of gas in a case where the resin composition is heated at 280° C. for 10 minutes is 3000 ppm or less in terms of mass of decane.Type: GrantFiled: September 20, 2016Date of Patent: August 20, 2019Assignee: Mitsubishi Engineering-Plastics CorporationInventor: Ryuuji Uchimura
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Publication number: 20190233616Abstract: Provided is a polycarbonate resin composition that can block ultraviolet light as well as light on the visible light side therefrom at wavelengths of 400 to 420 nm, and that is free of the problem of gas generation during molding. The polycarbonate resin composition characteristically comprises, per 100 parts by mass of a polycarbonate resin (A), (i) 0.02 to 1 parts by mass of a sesamol group-containing benzotriazole ultraviolet absorber (B1) having a maximum absorption wavelength of at least 375 nm in the absorption curve determined according to JIS K 7105 using the following formula, or (ii) 0.08 to 1 parts by mass of a sesamol group-containing benzotriazole ultraviolet absorber (B2) having a maximum absorption wavelength of at least 360 nm and less than 375 nm in the absorption curve determined according to JIS K 7105 using the following formula; and 0.01 to 0.5% by mass of a stabilizer (C).Type: ApplicationFiled: September 4, 2017Publication date: August 1, 2019Applicant: Mitsubishi Engineering-Plastics CorporationInventor: Atsushi MOTEGI
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Publication number: 20190185659Abstract: Provided is a polybutylene terephthalate resin composition containing, with respect to 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a total of 30 to 60 parts by mass of at least two different brominated flame retardants selected from the group consisting of a brominated epoxy compound, a brominated polycarbonate compound and a brominated polystyrene compound, (C) 5 to 15 parts by mass of an antimony compound, (D) 5 to 30 parts by mass of an elastomer, and (E) 0.5 to 3 parts by mass of a mold-release agent.Type: ApplicationFiled: May 17, 2017Publication date: June 20, 2019Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Souki YOSHIDA, Yasushi YAMANAKA
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Publication number: 20190153219Abstract: Provided is a polycarbonate resin composition that exhibits an excellent light resistance and an excellent resistance to moist heat and is free of the problem of mold staining. The polycarbonate resin composition comprises 0.12 to 0.8 mass parts of an N-alkyl hindered amine compound (C-1) and/or 0.12 to 0.8 mass parts of an N—OR hindered amine compound (C-2), per 100 mass parts of the total of (A) and (B) composed of more than 50 mass parts to not more than 95 mass parts of an aromatic polycarbonate resin (A) and less than 50 mass parts to at least 5 mass parts of an aromatic vinyl-diene-vinyl cyanide copolymer (B).Type: ApplicationFiled: July 21, 2017Publication date: May 23, 2019Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Hiroyuki HARADA, Bernardus Antonius Gerardus SCHRAUWEN, Dennis KARLIK
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Publication number: 20190077957Abstract: Provided is a polyamide resin composition capable of yielding highly abrasion-resistant molded article, while keeping high mechanical strength, and, a molded article using the polyamide resin composition. The polyamide resin composition contains (A) polyamide resin, (B) polyolef in wax, and (C) at least one metal salt selected from alkali metal salt and alkali earth metal salt, and the (A) polyamide resin contains (a-1) semiaromatic polyamide resin.Type: ApplicationFiled: March 6, 2017Publication date: March 14, 2019Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Ryusuke YAMADA, Takahiro TAKANO
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Publication number: 20190016883Abstract: A resin composition for laser welding contains: relative to 100 mass parts of (A) a thermoplastic polyester resin material that contains a polybutylene terephthalate homopolymer and at least one of a polybutylene terephthalate copolymer, a polyethylene terephthalate resin, and a polycarbonate resin, 0.0005 to 0.5 mass parts of (B) nigrosine; and 0.01 to 2 mass parts of (C) a colorant containing at least an anthraquinone dye C1 having a maximum absorption wavelength in a range of 590 to 635 nm, a perinone dye C2 having a maximum absorption wavelength in a range of 460 to 480 nm, and an anthraquinone dye C3 having a maximum absorption wavelength in a range of 435 to 455 nm, at C1: C2:C3=24 to 41:24 to 39:22 to 46 as the mass ratio relative to 100 mass parts for a total of C1, C2, and C3.Type: ApplicationFiled: February 24, 2017Publication date: January 17, 2019Applicants: Mitsubishi Engineering-Plastic Corporation, ORIENT CHEMICAL INDUSTRIES CO., LTD.Inventors: Yasushi YAMANAKA, Makiko YOSHIDA