Patents Assigned to Sekisui Chemical Co., Ltd.
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Publication number: 20230391971Abstract: The present invention aims to provide a foam, a laminated foam, and a resin sheet having good foaming properties, capable of exhibiting particularly excellent vibration-damping properties while being lightweight, and useful for recycling interlayer films for a laminated glass. The present invention also aims to provide a building material for housing including any of the foam, the laminated foam, and the resin sheet. Provide is a foam having a plurality of cells, the foam containing a polyvinyl acetal, a plasticizer, and a hydrogenated petroleum resin, the hydrogenated petroleum resin containing a compound having a softening point of 130° C. or higher.Type: ApplicationFiled: February 3, 2022Publication date: December 7, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu MASUYAMA, Katsunori TAKAHASHI, Takanori HAMADA
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Publication number: 20230391944Abstract: The present invention aims to provide a compound capable of increasing the adhesion strength of adhesive compositions, particularly, even to low polarity adherends. The present invention also aims to provide a method for producing the compound, an adhesive composition containing the compound, and an adhesive tape including an adhesive layer containing the adhesive composition. Provided is a compound including: a structural unit (A) derived from a monomer (a) having a solvation free energy ?? with polytetrafluoroethylene of ?30 kcal/mol or less; and a structural unit (B) derived from at least one monomer (b) selected from the group consisting of a terpene monomer, a vinyl monomer, and a conjugated diene monomer.Type: ApplicationFiled: August 27, 2021Publication date: December 7, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yudai OGATA, Akira SHIMOJITOSHO, Yuitsu SUGAMI
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Publication number: 20230391053Abstract: Provided is a laminated glass capable of transmitting light applied from a remote sensing device satisfactorily, and enhancing the heat shielding property. A laminated glass of the present invention includes a first lamination glass member, a second lamination glass member, and an interlayer film, the interlayer film is arranged between the first lamination glass member and the second lamination glass member, the first lamination glass member has a light transmittance of 85% or more at every wavelength within a range of 380 nm to 2500 nm, the laminated glass has a first region and a second region, and the second region has a light transmittance of higher than a light transmittance of the first region by 5% or more at at least one wavelength within a range of 380 nm to 2500 nm.Type: ApplicationFiled: October 20, 2021Publication date: December 7, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Atsushi NOHARA
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Patent number: 11833784Abstract: A thermoplastic film 10 is a thermoplastic film comprising a light-emitting layer 11, wherein the light-emitting layer 11 comprises a thermoplastic resin and a light-emitting material that emits light by being irradiated with excitation light, and a change in yellowness of laminated glass obtained by bonding two sheets of clear glass in accordance with JIS R 3211 (1998) having a thickness of 2.5 mm with the thermoplastic film interposed therebetween after conducting a light resistance test for 2000 hours based on JIS R3205 2005 is 4 or less. The present invention provides a thermoplastic film comprising a light-emitting material, in which the emission intensity is unlikely to lower even when the thermoplastic film is exposed to ultraviolet rays for a long period of time.Type: GrantFiled: March 19, 2020Date of Patent: December 5, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yuusuke Oota, Kinryou Chou, Daisuke Nakajima, Takanori Hamada
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Publication number: 20230382082Abstract: Provided is a multilayer foam sheet excellent in flexibility and mechanical strength in the shear direction. A multilayer foam sheet of the present invention is a multilayer foam sheet including: a base layer including a foam layer, and a surface layer including a foam layer or a resin film and laminated on at least one side of the base layer directly or with another layer interposed therebetween, a low-speed shear modulus being 50 MPa or more, and a 25% compressive strength being 125 kPa or less.Type: ApplicationFiled: October 6, 2021Publication date: November 30, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Kento SATO, Hiroki MATSUKAWA, Masahiro HAMADA
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Patent number: 11826988Abstract: There is provided an inter layer film for laminated glass with which the flexural rigidity of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and is provided with a first layer containing a polyvinyl acetal resin and a plasticizer, and the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is less than or equal to 250 cm?1 and the content of the plasticizer contained in the first layer relative to 100 parts by weight of the polyvinyl acetal resin contained in the first layer is greater than or equal to 5 parts by weight and less than 30 parts by weight, or the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is greater than 250 cm?1.Type: GrantFiled: February 10, 2021Date of Patent: November 28, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Tatsuya Iwamoto, Daizou Ii, Yuji Uchimura, Nami Minakuchi
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Patent number: 11827766Abstract: Provided is a resin material capable of effectively improving the insulating properties and the thermal conductivity, and further effectively controlling the variation in dielectric breakdown strength, and further effectively increasing the adhesion. A resin material according to the present invention includes first inorganic particles, second inorganic particles, and a binder resin, and a ratio of a compressive strength at 10% compression of the first inorganic particles to a compressive strength at 10% compression of the second inorganic particles is 2.5 or more, the second inorganic particles have a compressive strength at 10% compression of 1.5 N/mm2 or less, and the second inorganic particles include primary particles having an aspect ratio of 7 or less.Type: GrantFiled: January 29, 2018Date of Patent: November 28, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yuko Kawahara, Keigo Oowashi, Kouji Ashiba, Masataka Sugimoto
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Publication number: 20230374240Abstract: A foam sheet having at least one glass transition temperature (Tg) of 0 to 40° C., a peak value of the loss tangent (tan?) in the glass transition temperature (Tg) of 0.30 or more, and a 25% compressive strength of 1000 kPa or less, and further having a glass transition temperature (Tg) of ?40° C. or less. A foam sheet having cushioning properties and vibration resistance in which no cracking occurs even when used in cold areas can be provided.Type: ApplicationFiled: September 29, 2021Publication date: November 23, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Masahiro HAMADA
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Patent number: 11820107Abstract: Provided is an interlayer film for laminated glass with which transmitted double images in the laminated glass can be suppressed. An interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, and the other end has a thickness larger than a thickness of the one end, and when an inclination of approximate line A and a maximum value of absolute values of deviation in partial wedge angle are calculated according to determination of a specific formula of approximate line A and calculation of deviation in partial wedge angle, the inclination of approximate line A is ?0.05 mrad/m or less in at least one section A, and the maximum value of absolute values of deviation in partial wedge angle is 0.2 mrad or less.Type: GrantFiled: June 10, 2020Date of Patent: November 21, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Jun Ishida, Hiromitsu Nishino
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Patent number: 11820106Abstract: Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. The interlayer film for laminated glass according to the present invention is an interlayer film for use in a laminated glass that is a head-up display, the interlayer film has one end, and the other end being at the opposite side of the one end, the other end has a thickness larger than a thickness of the one end, the interlayer film has a region for display corresponding to a display region of the head-up display, and when three regions obtained by equally dividing the region for display into three in a direction connecting the one end and the other end are named a first partial region for display, a second partial region for display, and a third partial region for display in sequence from the one end side, as to partial wedge angle Ax, Bx, and Cx in the first, second, and third partial regions for display, and partial wedge angle ?x in the region for display satisfy, |Ax??x| is 0.Type: GrantFiled: October 9, 2019Date of Patent: November 21, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventor: Hiromitsu Nishino
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Publication number: 20230365414Abstract: A gas production apparatus and a gas production system capable of continuously and stably manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. A gas production apparatus 1 is an apparatus that manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent containing a metal oxide that reduces carbon dioxide. The gas production apparatus includes a reaction section 4 that includes a plurality of reactors 4a and 4b and a reducing agent arranged in the reactors 4a and 4b, and that is capable of switching between the raw material gas and the reducing gas to be supplied to each of the reactors 4a and 4b.Type: ApplicationFiled: August 4, 2020Publication date: November 16, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE
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Publication number: 20230365413Abstract: A gas manufacturing apparatus and a gas manufacturing system capable of efficiently manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. The gas manufacturing apparatus 1 manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent that reduces the carbon dioxide.Type: ApplicationFiled: August 4, 2020Publication date: November 16, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE
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Publication number: 20230356507Abstract: An interlayer film 10 for laminated glass comprises a first resin layer 11, a second resin layer 12, and a plastic layer 13 disposed between the first and second resin layers 11 and 12, wherein: the first resin layer 11 comprises a thermoplastic resin, and has a thickness of 900 ?m or less, and a magnesium element content of less than 25 ppm; the second resin layer 12 comprises a thermoplastic resin, and has a total content of magnesium element and potassium element of 25 ppm or more; and the interlayer film for laminated glass satisfies requirements to have a mean break height (MBH) of 5 m or more in a falling ball test conducted in accordance with JIS R 3212: 2015 for two glass sheets each having a thickness of 2.5 mm laminated via the interlayer film 10 for laminated glass, in both cases with a water content of the interlayer film for laminated glass of 0.4% and 2.0%.Type: ApplicationFiled: September 8, 2021Publication date: November 9, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Kinryou CHOU, Yuusuke OOTA, Minako TAKAI
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Publication number: 20230357476Abstract: Provided is a resin composition capable of enhancing the application property, and enhancing the grindability and the oil resistance of a cured body. A resin composition according to the present invention comprises a (meth)acrylic monomer, and a (meth)acrylic polymer, the (meth)acrylic monomer includes a first (meth)acrylic monomer, the first (meth)acrylic monomer has a glass transition temperature of homopolymer thereof of 65° C. or more and 110° C. or less, a content of the first (meth)acrylic monomer in 100% by weight of the (meth)acrylic monomer is 50% by weight or more and 85% by weight or less, the (meth)acrylic polymer has a weight average molecular weight of 400000 or more and 1900000 or less, and a content of the (meth)acrylic polymer, relative to 100 parts by weight of the (meth)acrylic monomer is 5 parts by weight or more and 30 parts by weight or less.Type: ApplicationFiled: September 13, 2021Publication date: November 9, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Shinji KAWADA, Yuki ISHIKAWA, Tatsuya IWAMOTO, Yuuki OKADA
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Patent number: 11811062Abstract: A positive electrode (1) for non-aqueous electrolyte secondary batteries, including collector (11) and active material layer (12), wherein: integrated value (a) is 3 to 15% (for frequency of diameters of 1 ?m or less), and frequency (b) is 8 to 20% (for diameter with a maximum frequency). A positive electrode (1) for non-aqueous electrolyte secondary batteries, including collector (11) and active material layer (12), wherein assuming two directions perpendicular to thickness direction of collector (11) and mutually orthogonal as first and second directions, average thickness a1, maximum thickness b1, minimum thickness cl in thickness distribution in the first direction, and thickness d1 (largest absolute value of difference from a1) satisfy 0.990?(d1/a1)?1.010 and (b1?c1)?5.0 ?m, and average thickness a2, maximum thickness b2, minimum thickness c2 in thickness distribution in the second direction, and thickness d2 (largest absolute value of difference from a2) satisfy 0.990?(d2/a2)?1.010 and (b2?c2)?5.0 ?m.Type: GrantFiled: March 18, 2022Date of Patent: November 7, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hikaru Yoshikawa, Yuichi Sabi
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Publication number: 20230348767Abstract: The present invention aims to provide a temporary fixing material that is easily separable even after high-temperature processing at 300° C. or higher with an adherend fixed thereon. The present invention also aims to provide a method for producing an electronic component using the temporary fixing material. Provided is a temporary fixing material containing a photocurable adhesive, the photocurable adhesive containing a reactive resin containing a resin (1) having an imide skeleton in a backbone repeating unit, the temporary fixing material having a light transmittance at 405 nm of 10% or greater and a 5% weight loss temperature of 350° C. or higher.Type: ApplicationFiled: September 22, 2021Publication date: November 2, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Izumi DAIDO, Toshio TAKAHASHI, Tokushige SHICHIRI, Satoshi HAYASHI, Fumika HOSHINO
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Patent number: 11802177Abstract: An imide oligomer is provided for use in a cured product that has a high glass transition temperature after curing and is excellent in thermal decomposition resistance, adhesiveness, and long-term heat resistance. Also provided are a curable resin composition and an imide oligomer composition each containing the imide oligomer, an adhesive containing the curable resin composition, and a curing agent containing the imide oligomer composition.Type: GrantFiled: January 26, 2018Date of Patent: October 31, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Kohei Takeda, Sayaka Wakioka, Yuta Oatari, Takashi Shinjo, Masami Shindo
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Patent number: 11802224Abstract: The present invention aims to provide an adhesive tape that is easily peelable while capable of maintaining high adhesion at high temperature. The present invention also aims to provide a method for fixing an electronic device component or an in-vehicle device component using the adhesive tape and a method for producing an electronic device or an in-vehicle device. Provided is an adhesive tape including an adhesive layer containing: an acrylic copolymer; and 0.Type: GrantFiled: March 22, 2022Date of Patent: October 31, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Aya Adachi, Yudai Ogata, Noriyuki Uchida, Yoshito Arai
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Patent number: 11801667Abstract: A thermoplastic film 10 is a thermoplastic film comprising a light-emitting layer 11, wherein the light-emitting layer 11 comprises a thermoplastic resin and a light-emitting material that emits light by being irradiated with excitation light, and when laminated glass obtained by bonding two sheets of clear glass in accordance with JIS R 3211(1998) having a thickness of 2.5 mm with the thermoplastic film interposed therebetween is irradiated, from one surface, with excitation light, which the light-emitting material is capable of absorbing, in a quantity of light of 7 mW/cm2, a difference between luminance A observed on a side of the one surface and luminance B observed on a side of the other surface, (A?B), is 5 cd/m2 or more.Type: GrantFiled: March 19, 2020Date of Patent: October 31, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yuusuke Oota, Kinryou Chou, Daisuke Nakajima, Takanori Hamada
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Publication number: 20230339207Abstract: The present invention provides a laminate that has excellent flame-shielding performance and heat-shielding performance and can reduce the transmission of flame and heat generated by ignition inside a battery to the outside, especially when used as a cover for an in-vehicle battery. Provided is a laminate including: a fiber layer including a resin and a fiber; and a thermal insulation layer formed on at least one surface of the fiber layer.Type: ApplicationFiled: September 24, 2021Publication date: October 26, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroaki MOCHIZUKI, Kenichi MATSUMURA, Takehisa SUGAYA