Patents by Inventor Kiminori Araki
Kiminori Araki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230017595Abstract: A urethane-based adhesive composition includes a urethane prepolymer, a carbon black A having a dibutyl phthalate oil absorption number of 30 to 40 ml/100 g, a carbon black B having a dibutyl phthalate oil absorption number of 98 to 108 ml/100 g, a calcium carbonate C, a plasticizer D, a modified product E of an aliphatic diisocyanate, and a catalyst, and the urethane-based adhesive composition is configured to satisfy all of the following (1) to (6): (1) 25?a?35, (2) 55?b?75, (3) 197?a+3b?251, (4) 30?c?35, (5) 35?d?45, and (6) 9?e?13.Type: ApplicationFiled: June 30, 2022Publication date: January 19, 2023Inventor: Kiminori Araki
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Patent number: 11230642Abstract: The one-part moisture-curable urethane composition of the present technology includes: a urethane prepolymer (A) having an isocyanate group; at least one type of compound (B) selected from the group consisting of an aliphatic isocyanate compound and a modified product of the aliphatic isocyanate compound; and a monoalcohol compound (C) having a hydroxy group, the monoalcohol compound (C) being blended in an amount such that the amount of the hydroxy group in the monoalcohol compound (C) is from 0.025 to 0.4 mol per 1 mol of the isocyanate group in the urethane prepolymer (A).Type: GrantFiled: June 12, 2017Date of Patent: January 25, 2022Inventor: Kiminori Araki
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Patent number: 11117998Abstract: The present technology provides a one-part moisture-curable polyurethane composition excellent in long-term adhesion against weather resistance and vibration. According to the embodiment of the present technology, a one-part moisture-curable polyurethane composition includes: a urethane prepolymer having an isocyanate group; a morpholine compound having one morpholine ring; and an ether compound having two dimethylamino groups.Type: GrantFiled: November 17, 2017Date of Patent: September 14, 2021Inventors: Kiminori Araki, Kazunori Ishikawa
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Patent number: 11117999Abstract: The present technology provides a polyurethane composition including: a main agent; and a curing agent, wherein the main agent includes a urethane prepolymer having an isocyanate group, a morpholine compound having one morpholine ring, and an ether compound having two dimethylamino groups, and the curing agent includes an active hydrogen compound having two or more active hydrogen-containing groups in one molecule.Type: GrantFiled: November 17, 2017Date of Patent: September 14, 2021Inventors: Kiminori Araki, Kazunori Ishikawa
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Patent number: 10723924Abstract: The present technology provides a one-part moisture curable adhesive composition and a production method thereof. The adhesive composition contains: a preliminary composition containing a urethane prepolymer and a reaction product of an aliphatic isocyanate A and an aminosilane compound B or a monoterpene alcohol; and a dimethyl tin catalyst represented by Formula (1) below. In Formula (1), X1 and X2 each independently represent a divalent heteroatom and R1 and R2 each independently represent a hydrocarbon group that may have a heteroatom.Type: GrantFiled: July 15, 2016Date of Patent: July 28, 2020Assignee: The Yokohama Rubber Co., LTD.Inventor: Kiminori Araki
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Patent number: 10584269Abstract: The present technology provides: a one-part moisture-curable adhesive composition including: a preliminary composition obtained by mixing a urethane prepolymer, an aliphatic isocyanate A, and an aminosilane compound B, and a dimethyl tin catalyst represented by Formula (1) below; and a production method thereof. In Formula (1), X1 and X2 each independently represent a divalent heteroatom, and R1 and R2 each independently represent a hydrocarbon group that may have a heteroatom.Type: GrantFiled: July 15, 2016Date of Patent: March 10, 2020Assignee: The Yokohama Rubber Co., LTD.Inventor: Kiminori Araki
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Publication number: 20200024448Abstract: The one-part moisture-curable urethane composition of the present technology includes: a urethane prepolymer (A) having an isocyanate group; at least one type of compound (B) selected from the group consisting of an aliphatic isocyanate compound and a modified product of the aliphatic isocyanate compound; and a monoalcohol compound (C) having a hydroxy group, the monoalcohol compound (C) being blended in an amount such that the amount of the hydroxy group in the monoalcohol compound (C) is from 0.025 to 0.4 mol per 1 mol of the isocyanate group in the urethane prepolymer (A).Type: ApplicationFiled: June 12, 2017Publication date: January 23, 2020Inventor: Kiminori Araki
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Publication number: 20190284328Abstract: The present technology provides a polyurethane composition including: a main agent; and a curing agent, wherein the main agent includes a urethane prepolymer having an isocyanate group, a morpholine compound having one morpholine ring, and an ether compound having two dimethylamino groups, and the curing agent includes an active hydrogen compound having two or more active hydrogen-containing groups in one molecule.Type: ApplicationFiled: November 17, 2017Publication date: September 19, 2019Inventors: Kiminori Araki, Kazunori Ishikawa
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Publication number: 20190284327Abstract: The present technology provides a one-part moisture-curable polyurethane composition excellent in long-term adhesion against weather resistance and vibration. According to the embodiment of the present technology, a one-part moisture-curable polyurethane composition includes: a urethane prepolymer having an isocyanate group; a morpholine compound having one morpholine ring; and an ether compound having two dimethylamino groups.Type: ApplicationFiled: November 17, 2017Publication date: September 19, 2019Inventors: Kiminori ARAKI, Kazunori ISHIKAWA
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Patent number: 10385245Abstract: The present technology is to provide a one-part moisture-curable polyurethane composition having excellent adhesion to an adherend (coated plate), and a method for producing such a composition. The present technology is a one-part moisture-curable urethane composition including a preliminary composition obtained by mixing a urethane prepolymer, an aliphatic isocyanate A, and an aminosilane compound B, and a catalyst; and a method for producing such a composition.Type: GrantFiled: June 30, 2015Date of Patent: August 20, 2019Assignee: The Yokohama Rubber Co., Ltd.Inventor: Kiminori Araki
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Publication number: 20180208815Abstract: The present technology provides a one-part moisture curable adhesive composition and a production method thereof. The adhesive composition contains: a preliminary composition containing a urethane prepolymer and a reaction product of an aliphatic isocyanate A and an aminosilane compound B or a monoterpene alcohol; and a dimethyl tin catalyst represented by Formula (1) below. In Formula (1), X1 and X2 each independently represent a divalent heteroatom and R1 and R2 each independently represent a hydrocarbon group that may have a heteroatom.Type: ApplicationFiled: July 15, 2016Publication date: July 26, 2018Inventor: Kiminori Araki
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Publication number: 20180208814Abstract: The present technology provides: a one-part moisture-curable adhesive composition including: a preliminary composition obtained by mixing a urethane prepolymer, an aliphatic isocyanate A, and an aminosilane compound B, and a dimethyl tin catalyst represented by Formula (1) below; and a production method thereof. In Formula (1), X1 and X2 each independently represent a divalent heteroatom, and R1 and R2 each independently represent a hydrocarbon group that may have a heteroatom.Type: ApplicationFiled: July 15, 2016Publication date: July 26, 2018Inventor: Kiminori Araki
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Patent number: 10011748Abstract: The present technology provides an adhesive composition containing a urethane prepolymer (UP), plural types of carbon blacks (CB), calcium carbonate, aliphatic isocyanate, a metal catalyst, and an amine catalyst, wherein first and second CBs have dibutyl phthalate oil absorptions of from 23 to 40 cm3/100 g and from 85 to 120 cm3/100 g, respectively; contents 1 and 2 of the first and second CBs are respectively not less than 25 parts by mass and not less than 9 parts by mass per 100 parts by mass of the UP; a content of the calcium carbonate is from 5 to 30 parts by mass per 100 parts by mass of the UP, and from 5 to 50 parts by mass per 100 parts by mass of a sum of the contents 1 and 2.Type: GrantFiled: March 31, 2016Date of Patent: July 3, 2018Assignee: The Yokohama Rubber Co., LTD.Inventors: Kiminori Araki, Miyuki Ariizumi
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Patent number: 9982111Abstract: A one-part moisture-curable polyurethane composition according to the present technology comprises: a urethane prepolymer (A), a crosslinking agent (B), carbon black (C) and a catalyst (D). The crosslinking agent (B) is at least one type selected from the group consisting of isocyanurate of hexamethylene diisocyanate (b1), allophanate of hexamethylene diisocyanate (b2), a reaction product of hexamethylene diisocyanate with trimethylolpropane (b3), and a reaction product of hexamethylene diisocyanate with glycerin (b4). The content of the crosslinking agent (B) is from 8 to 20 parts by mass per 100 parts by mass of the urethane prepolymer (A).Type: GrantFiled: June 6, 2014Date of Patent: May 29, 2018Assignee: The Yokohama Rubber Co., LTD.Inventors: Kiminori Araki, Akio Ikeda
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Publication number: 20180086956Abstract: The present technology provides an adhesive composition containing a urethane prepolymer (UP), plural types of carbon blacks (CB), calcium carbonate, aliphatic isocyanate, a metal catalyst, and an amine catalyst, wherein first and second CBs have dibutyl phthalate oil absorptions of from 23 to 40 cm3/100 g and from 85 to 120 cm3/100 g, respectively; contents 1 and 2 of the first and second CBs are respectively not less than 25 parts by mass and not less than 9 parts by mass per 100 parts by mass of the UP; a content of the calcium carbonate is from 5 to 30 parts by mass per 100 parts by mass of the UP, and from 5 to 50 parts by mass per 100 parts by mass of a sum of the contents 1 and 2.Type: ApplicationFiled: March 31, 2016Publication date: March 29, 2018Inventors: Kiminori Araki, Miyuki Ariizumi
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Patent number: 9862796Abstract: A one-part moisture-curable polyurethane composition of the present technology comprises: a preliminary composition containing a urethane prepolymer (A); and an adhesion promoter (B); the adhesion promoter being a reaction product of a compound (b1) having three or more isocyanate groups; and a compound (b2) of at least one type of a compound selected from the group consisting of compounds represented by Formula (1) to (4) described below and hydrogenated compounds of compounds represented by Formula (1) to (3) described below; wherein a ratio (NCO/OH) between an isocyanate group (NCO) of the compound (b1) and a hydroxy group (OH) of the compound (b2) is 1.2 to 3.2; and a content of the adhesion promoter (B) being 0.1 to 10 parts by mass per 100 parts by mass of the preliminary composition.Type: GrantFiled: December 25, 2014Date of Patent: January 9, 2018Assignee: The Yokohama Rubber Co., LTD.Inventor: Kiminori Araki
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Patent number: 9834711Abstract: A one-pack moisture-curing composition of the present technology contains a preliminary composition, an adhesiveness-imparting agent containing a compound (A) and/or a compound (B), a first catalyst containing a compound (C) and/or dibutyltin bis(pentadione), and a second catalyst containing a dimorpholinodiethylether.Type: GrantFiled: March 4, 2014Date of Patent: December 5, 2017Assignee: The Yokohama Rubber Co., LTD.Inventor: Kiminori Araki
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Publication number: 20170158927Abstract: The present technology is to provide a one-part moisture-curable polyurethane composition having excellent adhesion to an adherend (coated plate), and a method for producing such a composition. The present technology is a one-part moisture-curable urethane composition including a preliminary composition obtained by mixing a urethane prepolymer, an aliphatic isocyanate A, and an aminosilane compound B, and a catalyst; and a method for producing such a composition.Type: ApplicationFiled: June 30, 2015Publication date: June 8, 2017Applicant: The Yokohama Rubber Co., Ltd.Inventor: Kiminori Araki
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Publication number: 20170058076Abstract: A one-part moisture-curable polyurethane composition of the present technology comprises: a preliminary composition containing a urethane prepolymer (A); and an adhesion promoter (B); the adhesion promoter being a reaction product of a compound (b1) having three or more isocyanate groups; and a compound (b2) of at least one type of a compound selected from the group consisting of compounds represented by Formula (1) to (4) described below and hydrogenated compounds of compounds represented by Formula (1) to (3) described below; wherein a ratio (NCO/OH) between an isocyanate group (NCO) of the compound (b1) and a hydroxy group (OH) of the compound (b2) is 1.2 to 3.2; and a content of the adhesion promoter (B) being 0.1 to 10 parts by mass per 100 parts by mass of the preliminary composition.Type: ApplicationFiled: December 25, 2014Publication date: March 2, 2017Inventor: Kiminori Araki
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Patent number: 9534073Abstract: Provided is a method for producing a one-component moisture-curing polyurethane composition, the method comprising: a mixing step in which a liquid component (A) containing a polyol compound is mixed with a powder component (B) containing a filler so as to obtain a paste-like mixture of the liquid component (A) and the powder component (B); a dehydration step in which, following the mixing step, at least a portion of the residual moisture in the paste-like mixture is removed; a prepolymer generation step in which a polyisocyanate compound (C) is mixed with the paste-like mixture following the dehydration step so as to obtain a mixture containing a urethane prepolymer generated by a reaction between the polyisocyanate compound (C) and the polyol compound in the paste-like mixture; and a composition generation step in which the mixture is mixed with an aliphatic isocyanate compound (D) so as to obtain a one-component moisture-curing polyurethane composition.Type: GrantFiled: December 6, 2013Date of Patent: January 3, 2017Assignee: The Yokohama Rubber Co., Ltd.Inventors: Miyuki Mori, Hiroshi Fukui, Kiminori Araki, Akio Ikeda