Patents Assigned to Mitsubishi Engineering-Plastics Corporation
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Patent number: 11098190Abstract: 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: GrantFiled: May 17, 2017Date of Patent: August 24, 2021Assignee: Mitsubishi Engineering-Plastics CorporationInventors: Souki Yoshida, Yasushi Yamanaka
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Publication number: 20210246302Abstract: Disclosed is a connector connection port formed by injection molding a polybutylene terephthalate resin material. A protruding boss part is provided on an outer or inner peripheral surface of the connector connection port. Voids are present in the boss part and a lower part of the outer or inner peripheral surface on which the boss part is provided. When a total of cross-sectional areas of voids in a region at a height of 0-0.5 mm from the outer or inner peripheral surface in the boss part is S1, a total of cross-sectional areas of voids in a region at a depth of 0-0.5 mm from the outer or inner peripheral surface on which the boss part is provided is S2, and a total of S1 and S2 is 100%, an areal ratio of S1 is 5% to 45% and an areal ratio of S2 is 55% to 95%.Type: ApplicationFiled: April 23, 2021Publication date: August 12, 2021Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Souki YOSHIDA, Yasushi YAMANAKA
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Publication number: 20210246304Abstract: A thermoplastic resin composition including a thermoplastic resin component and a glass filler (C), the thermoplastic resin component including a polycarbonate resin (A) having a viscosity-average molecular weight of 13,000 to 22,000 and a polyester resin (B) including a terephthalic acid residue, a 1,4-cyclohexanedimethanol residue, and a 2,2,4,4-tetramethyl-1,3-cyclobutanediol residue. The amounts of the polycarbonate resin (A) and the polyester resin (B) are 25 to 65 parts by mass and 75 to 35 parts by mass, respectively, relative to 100 parts by mass of the total amount of the polycarbonate resin (A) and the polyester resin (B). The amount of the glass filler (C) is 10 to 45 parts by mass relative to 100 parts by mass of the thermoplastic resin component. A molded article is produced by performing injection molding of the thermoplastic resin composition with a heat-insulation mold or heat-and-cool molding of the thermoplastic resin composition.Type: ApplicationFiled: April 25, 2019Publication date: August 12, 2021Applicant: Mitsubishi Engineering-Plastics CorporationInventor: Kosei HINO
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Publication number: 20210238420Abstract: A thermoplastic resin composition, may include a thermoplastic resin (A) and, per 100 parts by mass of the thermoplastic resin (A), from 0 to 0.2 parts by mass of a metal salt-containing flame retardant (B), and not less than 0.05 parts by mass and less than 3 parts by mass of an organopolysiloxane (C), wherein the organopolysiloxane (C) has a molecular weight distribution (Mw/Mn) in a range of from 1.01 to 1.4.Type: ApplicationFiled: July 8, 2019Publication date: August 5, 2021Applicants: Mitsubishi Engineering-Plastics Corporation, Mitsubishi Chemical CorporationInventors: Yasuyuki IRIE, Satoshi MOCHIDA, Takumi WATANABE, Noriaki TERADA
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Publication number: 20210198466Abstract: To provide a resin composition, a pellet, a composite molded article, a method for manufacturing a composite molded article and a tank, all capable of enabling tight joining and integration of the polyacetal resin molded article and the polyethylene resin molded article, and of suppressing formaldehyde emission and occurrence of mold deposit. The resin composition contains a resin ingredient and melamine, the resin ingredient containing a polyacetal resin and a maleic anhydride-modified polyethylene resin, the polyacetal resin and the maleic anhydride-modified polyethylene resin following a mass proportion of (20 to 49):(80 to 51), and molar concentration of the maleic anhydride group capable of reacting with amino group of melamine contained in the resin composition being 5 to 25 ?mol/g.Type: ApplicationFiled: August 28, 2019Publication date: July 1, 2021Applicants: MITSUBISHI ENGINEERING-PLASTICS CORPORATION, JAPAN POLYETHYLENE CORPORATIONInventors: Kunihiko FUJIMOTO, Kei TAKAHASHI, Ritsuya MATSUMOTO
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Publication number: 20210147622Abstract: There is provided a cover for a millimeter-wave radar, the cover being provided on an antenna that transmits and/or receives a millimeter wave of 75 to 81 GHz, the cover containing a thermoplastic resin composition that contains an aromatic polycarbonate resin having a structural unit (A) represented by formula (1) below, the cover having a relative dielectric constant ?r of 3.0 or less, a dielectric loss tangent tan ? of 8.0×10?3 or less, and a loss factor ?r·tan ? of 17.0×10?3 or less: where in formula (1), R1 and R2 are each a hydrogen atom or a methyl group, and W1 is at least one selected from a single bond, an oxygen atom, a sulfur atom, and a divalent organic group.Type: ApplicationFiled: April 24, 2019Publication date: May 20, 2021Applicant: Mitsubishi Engineering-Plastic CorporationInventors: Toshiki MONDEN, Morio TSUNODA, Hiroyuki TAJIMA, TAtsuya KIKUCHI
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Patent number: 10988615Abstract: 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) polyolefin 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: GrantFiled: March 6, 2017Date of Patent: April 27, 2021Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Ryusuke Yamada, Takahiro Takano
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Patent number: 10975239Abstract: 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: GrantFiled: October 18, 2017Date of Patent: April 13, 2021Assignee: Mitsubishi Engineering-Plastics CorporationInventor: Kosei Hino
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Publication number: 20210095117Abstract: A polycarbonate resin composition which has high rigidity, excellent dimensional stability, and low linear expansion properties. The polycarbonate resin composition contains, relative to 100 parts by mass of a polycarbonate resin (A), 10 to 100 parts by mass of an acrylonitrile-styrenic copolymer (B), 10 to 100 parts by mass of glass flakes (C) having an average thickness of 0.45 to 1 ?m, and 5 to 50 parts by mass of glass fibers (D) having an elliptical cross section with an ellipticity of more than 1.5 and not more than 8, wherein the mass ratio (D)/(C) of the content of the glass fibers (D) having an elliptical cross section to the content of the glass flakes (C) is 0.1 to 1.Type: ApplicationFiled: September 28, 2018Publication date: April 1, 2021Applicant: Mitsubishi Engineering-Plastics CorporationInventor: Hiroo KATAGIRI
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Publication number: 20210032461Abstract: A thermoplastic resin composition contains 10 to 90% by mass of (A) thermoplastic resin; 1 to 20% by mass of (B) laser direct structuring additive; and 0.3 to 7.0% by mass of (D) graphite, a total of the ingredient (A), the ingredient (B) and the ingredient (D) being always kept at 100% by mass or below, and a ratio by mass given by ingredient (B)/ingredient (D) being 1.0 to 20.Type: ApplicationFiled: February 25, 2019Publication date: February 4, 2021Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Ryusuke YAMADA, Tatsuya KIKUCHI, Yuki HIWATASHI
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Publication number: 20210032468Abstract: To provide a resin composition having large light transmittance and capable of providing a molded article which is highly laser-weldable to an absorbing resin member, as well as a kit, a method for manufacturing the resin composition, a method for manufacturing a formed article, and a formed article. The resin composition contains a polyamide resin, a maleic anhydride-modified polyphenylene ether-based resin, a phosphazene-based flame retardant, a zinc metal oxide, and a light transmitting dye.Type: ApplicationFiled: May 9, 2019Publication date: February 4, 2021Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventor: Fumihito OKAMOTO
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Publication number: 20210032438Abstract: A polycarbonate resin composition pellet contains a polycarbonate resin (A), an aromatic compound (B) represented by general formula (1) below, and a phosphorus-based stabilizer (C), the aromatic compound (B) being contained in the pellet in an amount of 0.001% to 1% by mass, the phosphorus-based stabilizer (C) being contained in the pellet in an amount of 0.003% to 0.5% by mass: (where Y is a hydrogen atom or an organic group that does not contain any of nitrogen, sulfur, and halogen elements, when Y is a hydrogen atom, X is an alkyl group or an optionally substituted aryl group, when Y is an organic group, X is an organic group that does not contain any of nitrogen, sulfur, and halogen elements, g is 1 or 2, n is 0 to 5, k is 1 to 4, and k+n is 6 or less.Type: ApplicationFiled: February 8, 2019Publication date: February 4, 2021Applicant: Mitsubishi Engineering-Plastics CorporationInventor: Junya HAYAKAWA
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Publication number: 20210032467Abstract: To provide a polyamide resin composition that contains a halogen-containing flame retardant, which excels in flame retardance, well suppressed from degrading the transmittance due to darkening, and such molded article. The polyamide resin composition contains a polyamide resin, 1 to 10% by mass of a halogen-containing flame retardant, and 1 to 5% by mass of antimony oxide, the polyamide resin composition having a phosphorus atom concentration of 1.50×10?2% by mass or less.Type: ApplicationFiled: March 29, 2019Publication date: February 4, 2021Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventor: Fumihito OKAMOTO
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Patent number: 10907042Abstract: Provided is a polyamide resin composition that has a large light transmittance with respect to 940 nm laser beam, and is capable of yielding a molded article that is highly laser weldable; and a kit, a method for manufacturing a molded article, and a molded article, using such polyamide resin composition.Type: GrantFiled: November 28, 2016Date of Patent: February 2, 2021Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventor: Fumihito Okamoto
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Publication number: 20210024721Abstract: 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: October 8, 2020Publication date: January 28, 2021Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventor: Atsushi MOTEGI
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Publication number: 20210017359Abstract: 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: October 6, 2020Publication date: January 21, 2021Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventor: Atsushi MOTEGI
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Patent number: 10836113Abstract: A laser welding member that has a high laser transmittance at a welding region and exhibits an excellent laser welding processability, and a molded article obtained by laser welding using this laser welding member. The laser welding member is obtained by injection molding of a thermoplastic polyester resin material, wherein a region to be laser welded in the member is at a location separated by a distance of at least 15 mm from a gate of an injection molding mold and has at least 30% of a light transmittance of laser light with a wavelength of 940 nm.Type: GrantFiled: January 18, 2016Date of Patent: November 17, 2020Assignee: Mitsubishi Engineering-Plastics CorporationInventor: Yasushi Yamanaka
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Patent number: 10815377Abstract: Provided is a resin molding that uses a resin composition capable of achieving high platability, while being imparted flame retardant by the halogen-containing flame retarder, a method for manufacturing a plated resin molding, and a method for manufacturing an antenna-equipped portable electronic device part. The resin composition comprises 100 parts by weight of a thermoplastic resin; 5 to 100 parts by weight of a halogen-containing flame retarder; and, 1 to 30 parts by weight of a laser direct structuring additive, wherein the laser direct structuring additive contains antimony, and; a content of an antimony-containing flame retarder auxiliary is 0.5 parts by weight or less per 100 parts by weight of the thermoplastic resin.Type: GrantFiled: October 5, 2016Date of Patent: October 27, 2020Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Ryusuke Yamada, Takahiro Takano
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Publication number: 20200307112Abstract: Regarding a laser welded body in which a laser transmissive/absorptive molding member containing a PBT-based material and a laser absorptive molding member containing a PBT-based material are integrated with each other by laser welding, the following laser welded body is proposed as a laser welded body in which a bond strength can be further increased. A laser welded body having a structure in which a member I and a member II are integrally bonded to each other, the member I contains 0.0005 to 5.0 parts by mass, with respect to 100 parts by mass of a polyester-based resin A, of a laser transmissive/absorptive coloring material capable of transmitting and absorbing laser beam, and the polyester-based resin A contains at least a polybutylene terephthalate copolymer resin, the member II contains 0.15 to 10.Type: ApplicationFiled: October 30, 2018Publication date: October 1, 2020Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Akihiro OKA, Yuki HIWATASHI, Yasushi YAMANAKA
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Patent number: 10781308Abstract: 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: GrantFiled: February 24, 2017Date of Patent: September 22, 2020Assignees: Mitsubishi Engineering-Plastics Corporation, ORIENT CHEMICAL INDUSTRIES CO., LTD.Inventors: Yasushi Yamanaka, Makiko Yoshida