Patents Assigned to Nippon A & L Inc.
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Patent number: 11845825Abstract: A method for manufacturing a rubber-reinforced styrenic resin powder comprising 40% by mass or more of a rubbery polymer, satisfying the following conditions (1) to (4): (1) at least first and second coagulation baths are provided; (2) the first and second coagulation baths are connected; (3) an emulsified dispersion of fatty acid amide is supplied to the connecting part in an amount of 0.2 parts by mass to 2.0 parts by mass (solid content) with respect to 100 parts by mass (solid content) of a slurry; and (4) a temperature in the second coagulation bath is equal to or higher than a temperature in the first coagulation bath.Type: GrantFiled: March 26, 2019Date of Patent: December 19, 2023Assignee: NIPPON A&L INC.Inventor: Takashi Saito
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Publication number: 20220251271Abstract: To provide a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle resistance in a well-balanced manner.Type: ApplicationFiled: April 22, 2022Publication date: August 11, 2022Applicant: NIPPON A&L INC.Inventors: Takayoshi FUJIWARA, Nana MATSUMOTO
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Patent number: 10865266Abstract: The present invention provides a thermoplastic resin composition comprising 10 to 60 mass % of a graft copolymer (A), 1 to 20 mass % of a copolymer (B), 10 to 88 mass % of a copolymer (C), and 1 to 10 mass % of a copolymer (D). The contents of (A) to (D) are each relative to the total amount thereof. Copolymers (A), (B), (C), and (D) are as described in the specification.Type: GrantFiled: December 7, 2016Date of Patent: December 15, 2020Assignee: NIPPON A&L INC.Inventors: Taka Ikeda, Takayoshi Fujiwara
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Patent number: 10723826Abstract: Provided is a modifier for polycarbonate, comprising: a graft polymer (A) having 30 to 80 parts by mass of a main chain composed of an ethylene-based polymer (a) and 70 to 20 parts by mass of a graft chain composed of a structural unit derived from a vinyl-based monomer (b), with a total amount of the main chain and the graft chain of 100 parts by mass; and a graft polymer (B) prepared by graft polymerization of a vinyl-based monomer to a rubbery polymer, at a mass ratio (A):(B)=9 to 98:91 to 2, wherein the vinyl-based monomer (b) comprises a specific aromatic vinyl monomer and vinyl cyanide monomer.Type: GrantFiled: March 22, 2018Date of Patent: July 28, 2020Assignee: NIPPON A&L INC.Inventors: Taisuke Yukawa, Kazuhiro Ishigaki
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Patent number: 10538611Abstract: Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.Type: GrantFiled: April 17, 2015Date of Patent: January 21, 2020Assignee: NIPPON A&L INC.Inventors: Kazuhiro Ishigaki, Kiyoshi Ikawa, Taisuke Yukawa
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Patent number: 10508167Abstract: Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.Type: GrantFiled: April 17, 2015Date of Patent: December 17, 2019Assignee: NIPPON A&L INC.Inventors: Kazuhiro Ishigaki, Kiyoshi Ikawa, Taisuke Yukawa
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Publication number: 20190322786Abstract: To provide a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle resistance in a well-balanced manner.Type: ApplicationFiled: July 5, 2017Publication date: October 24, 2019Applicant: NIPPON A&L INC.Inventors: Takayoshi FUJIWARA, Nana MATSUMOTO
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Patent number: 10118982Abstract: Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.Type: GrantFiled: April 17, 2015Date of Patent: November 6, 2018Assignee: NIPPON A&L INC.Inventors: Kazuhiro Ishigaki, Kiyoshi Ikawa, Taisuke Yukawa
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Publication number: 20170037175Abstract: Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.Type: ApplicationFiled: April 17, 2015Publication date: February 9, 2017Applicant: NIPPON A&L INC.Inventors: Kazuhiro ISHIGAKI, Kiyoshi IKAWA, Taisuke YUKAWA
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Patent number: 9556302Abstract: Provided is a thermoplastic resin composition having excellent weather resistance, impact resistance, and fluidity and also excellent color developing properties and residence heat stability. A graft copolymer (A) prepared by graft polymerization of a certain amount of a specific monomer (a2)onto a certain amount of composite rubber (a1) composed of a conjugated diene rubber polymer and a cross-linked acrylic ester polymer. The tetrahydrofuran-soluble portion of the composite rubber (a1) has a weight-average molecular weight of 50000 or more in terms of polystyrene and a degree of swelling in toluene of 7.0 or more, or in the composite rubber contained in the graft copolymer, the number of particles having an equivalent-circle diameter of 150 nm or less is 50% or less of the total number of the composite rubber particles.Type: GrantFiled: July 11, 2012Date of Patent: January 31, 2017Assignee: NIPPON A&L INC.Inventors: Takumi Miyahiro, Masanori Ito, Seiji Tamai, Fumitoshi Takeda, Kazunori Takahashi, Tomoyoshi Akiyama, Hajime Tomita, Haruki Okuno, Shunsaku Kubota, Masaaki Okada, Atsushi Hashimoto, Yoshiaki Takada, Nobuyuki Nakashima, Jiichiro Yoshida, Takayoshi Fujiwara, Shouta Kosaka
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Patent number: 9428674Abstract: A copolymer latex for adhesives contains a copolymer latex obtained by copolymerizing an aliphatic conjugated diene monomer with another monomer copolymerizable with this, an alkali metal salt of a carboxylic acid, and a divalent metal carbonate.Type: GrantFiled: February 19, 2014Date of Patent: August 30, 2016Assignee: NIPPON A & L INC.Inventors: Atsumi Tanemura, Kimio Misaki, Koichi Maki
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Publication number: 20160122501Abstract: Provided are: a rubber composition (a silica master batch) that contains silica in a highly dispersed state, which is prepared by mixing a suspension with an emulsion of an emulsion-polymerized conjugated diene polymer and then coagulating the resultant mixture, wherein the suspension is prepared by highly dispersing wet silica, which does not undergo secondary coagulation yet, or silica, which is prepared by mechanically dissociating secondary coagulation masses of silica, in water and the emulsion-polymerized conjugated diene polymer contains a functional group that is reactive with silica or has high affinity for silica; and a method for producing the rubber composition. A clam (a small mass of a rubber) which contains silica in a highly dispersed state is hardly dried.Type: ApplicationFiled: March 20, 2014Publication date: May 5, 2016Applicants: ETIC Inc., NIPPON A&L INC.Inventors: Iwakazu Hattori, Hisao Ono, Kimio Misaki, Hiroshi Miwata
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Patent number: 9328186Abstract: A thermoplastic resin composition for vehicle lamp housings, includes: 5 to 80 parts by weight of a graft copolymer (A) obtained by graft polymerizing at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, and (meth)acrylic ester-based monomers and maleimide-based monomers, under the presence of an acrylic ester-based rubbery polymer (a-1) having a weight average particle size of 100 to 400 nm; and 20 to 95 parts by weight of a (co)polymer (B) in which at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, (meth)acrylic ester-based monomers and maleimide-based monomers is polymerized, in which a content of total volatiles at 260° C. is no more than 0.7% by weight of the composition overall, and a content of oligomer component having a weight average molecular weight of 200 to 1000 is no more than 0.3% by weight of the composition overall.Type: GrantFiled: February 28, 2011Date of Patent: May 3, 2016Assignee: NIPPON A&L INC.Inventors: Hajime Tomita, Takayoshi Fujiwara, Shunsaku Kubota, Suguru Koba
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Publication number: 20160040046Abstract: A copolymer latex for adhesives contains a copolymer latex obtained by copolymerizing an aliphatic conjugated diene monomer with another monomer copolymerizable with this, an alkali metal salt of a carboxylic acid, and a divalent metal carbonate.Type: ApplicationFiled: February 19, 2014Publication date: February 11, 2016Applicant: NIPPON A & L INC.Inventors: Atsumi TANEMURA, Kimio MISAKI, Koichi MAKI
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Publication number: 20150274956Abstract: The invention relates to an emulsion for aqueous color comprising polymer particles having an average particle size of 20 to 80 nm as measured by the photon correlation method, and including 0.1 to 7 wt % of a structural unit derived from an ethylene-based unsaturated carboxylic acid monomer as the monomer component.Type: ApplicationFiled: March 17, 2015Publication date: October 1, 2015Applicant: NIPPON A&L INC.Inventor: Yuto MURAI
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Patent number: 9090728Abstract: A binder for secondary battery electrodes contains a copolymer latex obtained by emulsion polymerization of a monomer composition containing 12.0 to 39.5 wt % of an aliphatic conjugated diene-based monomer, 1.5 to 8.5 wt % of an unsaturated carboxylic acid alkyl ester monomer, 0.1 to 10.0 wt % of an ethylene-based unsaturated carboxylic acid monomer, and 42.0 to 86.4 wt % of a monomer that is copolymerizable therewith, wherein 50 to 100 wt % of the copolymer latex is toluene-insoluble.Type: GrantFiled: December 25, 2009Date of Patent: July 28, 2015Assignee: NIPPON A & L INC.Inventors: Takashi Matsuyama, Kimio Misaki
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Publication number: 20140378568Abstract: A rubber-reinforced styrene type resin composition for resin foams, the resin foams having a specific gravity of 0.3 to 0.7 and a ratio of the thickness of a skin layer to the thickness of the resin foam of 0.3 to 20%; the composition comprising: 10 to 99% by weight of a rubber-reinforced styrene type resin (A) which is obtained by bulk polymerization of a rubber polymer and an aromatic vinyl monomer, a vinyl cyanide monomer, and if necessary, another monomer that is copolymerizable with these monomers, a weight average particle diameter of the rubber polymer being 0.7 to 3 ?m, and 1 to 90% by weight of a copolymer (B) which is obtained by copolymerizing an aromatic vinyl monomer, a vinyl cyanide monomer, and if necessary, another monomer that is copolymerizable with these monomers (with the total of the rubber-reinforced styrene type resin (A) and the copolymer (B) being 100% by weight).Type: ApplicationFiled: January 11, 2013Publication date: December 25, 2014Applicant: NIPPON A&L INC.Inventors: Jiichiro Yoshida, Nobuyuki Nakashima
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Publication number: 20140147660Abstract: Provided is a thermoplastic resin composition having excellent weather resistance, impact resistance, and fluidity and also excellent color developing properties and residence heat stability. A graft copolymer (A) prepared by graft polymerization of a certain amount of a specific monomer (a2) onto a certain amount of composite rubber (a1) composed of a conjugated diene rubber polymer and a cross-linked acrylic ester polymer. The tetrahydrofuran-soluble portion of the composite rubber (a1) has a weight-average molecular weight of 50000 or more in terms of polystyrene and a degree of swelling in toluene of 7.0 or more, or in the composite rubber contained in the graft copolymer, the number of particles having an equivalent-circle diameter of 150 nm or less is 50% or less of the total number of the composite rubber particles.Type: ApplicationFiled: July 11, 2012Publication date: May 29, 2014Applicant: NIPPON A&L INC.Inventors: Takumi Miyahiro, Masanori Ito, Seiji Tamai, Fumitoshi Takeda, Kazunori Takahashi, Tomoyoshi Akiyama, Hajime Tomita, Haruki Okuno, Shunsaku Kubota, Masaaki Okada, Atsushi Hashimoto, Yoshiaki Takada, Nobuyuki Nakashima, Jiichiro Yoshida, Takayoshi Fujiwara, Shouta Kosaka
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Publication number: 20120322945Abstract: A thermoplastic resin composition for vehicle lamp housings, includes: 5 to 80 parts by weight of a graft copolymer (A) obtained by graft polymerizing at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, and (meth)acrylic ester-based monomers and maleimide-based monomers, under the presence of an acrylic ester-based rubbery polymer (a-1) having a weight average particle size of 100 to 400 nm; and 20 to 95 parts by weight of a (co)polymer (B) in which at least one monomer (a-2) selected from the group consisting of aromatic vinyl-based monomers, vinyl cyanide-based monomers, (meth)acrylic ester-based monomers and maleimide-based monomers is polymerized, in which a content of total volatiles at 260° C. is no more than 0.7% by weight of the composition overall, and a content of oligomer component having a weight average molecular weight of 200 to 1000 is no more than 0.3% by weight of the composition overall.Type: ApplicationFiled: February 28, 2011Publication date: December 20, 2012Applicant: NIPPON A&L INC.Inventors: Hajime Tomita, Takayoshi Fujiwara, Shunsaku Kubota, Suguru Koba
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Publication number: 20120264878Abstract: A binder for secondary battery electrodes contains a copolymer latex obtained by emulsion polymerization of a monomer composition containing 12.0 to 39.5 wt % of an aliphatic conjugated diene-based monomer, 1.5 to 8.5 wt % of an unsaturated carboxylic acid alkyl ester monomer, 0.1 to 10.0 wt % of an ethylene-based unsaturated carboxylic acid monomer, and 42.0 to 86.4 wt % of a monomer that is copolymerizable therewith, wherein 50 to 100 wt % of the copolymer latex is toluene-insoluble.Type: ApplicationFiled: December 25, 2009Publication date: October 18, 2012Applicant: NIPPON A & L INC.Inventors: Takashi Matsuyama, Kimio Misaki