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公开(公告)号：US11352473B2
公开(公告)日：2022-06-07
申请号：US15109407
申请日：2015-06-19
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Nozomu Washio , Taketo Hashimoto
IPC: C08J7/043 , C08J7/12 , B32B27/28 , B32B27/30 , C08J7/04 , B32B27/36 , B32B27/08 , C09D133/14 , C08J7/046 , B05D3/00 , B05D3/06 , B05D3/02 , B05D7/04 , B05D7/00
Abstract: Embodiments provide a hard coat laminated film including a first hard coat, a second hard coat, and a transparent resin film layer in order from the outermost surface layer side, where the first hard coat is formed of a coating material containing no inorganic particles; the second hard coat is formed of a coating material containing inorganic particles; and the hard coat laminated film satisfies the following requirements: (i) the total light transmittance is 85% or more; and (ii) the pencil hardness of the surface of the first hard coat is 5H or higher.
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公开(公告)号：US11065851B2
公开(公告)日：2021-07-20
申请号：US15559400
申请日：2016-02-05
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Kohei Nakashima , Hideaki Yambe , Nozomu Washio , Taketo Hashimoto
IPC: B32B27/18 , B32B27/36 , B32B7/02 , B32B7/12 , B32B38/00 , B32B27/20 , B32B27/30 , B29C48/21 , C08J7/043 , C08J7/046 , C09D7/40
Abstract: One embodiment provides a multilayer hard coating film which sequentially includes, from the superficial layer side, a first hard coating and a resin film, and wherein: the first hard coating is formed from a coating material that contains a specific amount of (A) a polyfunctional (meth)acrylate and a specific amount of (B) a water repellent agent, while containing no inorganic particles; and the resin film includes at least one layer of (α) an acrylic resin that contains 50-95% by mole of a structural unit derived from methyl methacrylate and 50-5% by mole of a structural unit derived from vinyl cyclohexane when the total of the structural units derived from polymerizable monomers is taken as 100% by mole. Another embodiment provides a multilayer hard coating film which includes a second hard coating in addition to a first hard coating, and wherein: the first hard coating contains (C) a silane coupling agent in addition to the above-described components (A) and (B); and the second hard coating is formed from a coating material that contains a specific amount of (A) a polyfunctional (meth)acrylate and a specific amount of (D) inorganic fine particles having an average particle diameter of 1-300 nm.
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公开(公告)号：US10596739B2
公开(公告)日：2020-03-24
申请号：US15559357
申请日：2016-02-04
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Nozomu Washio , Taketo Hashimoto , Jun Fujimoto
IPC: B29C48/15 , C09D7/40 , B32B27/18 , C08J7/04 , B32B1/00 , B32B27/20 , B32B27/30 , C09D133/10 , C09D135/02 , B05D1/00 , B05D1/02 , B29L31/30
Abstract: One embodiment provides a molded body that includes a resin substrate and in which: a part or all of the surface of the substrate is coated with a hard coat; a first hard coat is formed from a coating material that does not contain inorganic particles and that contains (A) 100 parts by mass of a polyfunctional (meth)acrylate, (B) 0.01-7 parts by mass of a water-repelling agent, and (C) 0.01-10 parts by mass of a silane coupling agent; and a second hard coat is formed from a coating material containing (A) 100 parts by mass of the polyfunctional (meth)acrylate and (D) 50-300 parts by mass of fine inorganic particles having an average particle size of 1-300 nm. Another embodiment provides a molded body that includes a resin substrate and in which a part or all of the surface of the substrate is coated with a hard coat, a first hard coat is formed from a coating material that does not contain inorganic particles, a second hard coat is formed from a coating material containing inorganic particles, (i) the total light transmittance is 85% or more, and (ii) the pencil hardness of the surface of the first hard coat is 5H or more.
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公开(公告)号：US10576498B2
公开(公告)日：2020-03-03
申请号：US15128014
申请日：2015-01-27
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Taketo Hashimoto , Nozomu Washio
Abstract: Embodiments of the invention provide a method for producing a multilayer coated film which involves obtaining a first layered body by forming, on a film substrate, a wet-coated film including a coating material (A) containing an active energy ray-curable resin which contains a first photopolymerization initiator and a second photopolymerization initiator, the reaction wavelengths of which differ from one another; and forming a pre-cured coated film including the coating material (A) in a dry-to-the-touch state by preliminarily curing the wet-coated film including the coating material (A), by irradiating the first layered body with active energy rays which include the reaction wavelength of the first photopolymerization initiator and do not include the reaction wavelength of the second photopolymerization initiator. The method further includes obtaining a second layered body by forming a wet-coated film including a coating material (B) on the pre-cured coated film including the coating material (A); and obtaining the multilayer coated film by fully curing the pre-cured coated film including the coating material (A) by irradiating the second layered body with active energy rays including the reaction wavelength of the second photopolymerization initiator.
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公开(公告)号：US10173392B2
公开(公告)日：2019-01-08
申请号：US15128765
申请日：2015-03-10
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Hiroyuki Tomomatsu , Taketo Hashimoto
IPC: B32B7/02 , B32B27/30 , G02B1/14 , B32B7/12 , B32B27/06 , B32B27/16 , B32B27/34 , B29C47/06 , B32B27/36 , B32B37/12 , B32B38/00 , B32B27/08 , B32B27/28 , B32B1/00
Abstract: The present invention pertains to a process for producing an article from a layered hard coat object including a hard coat layer and a transparent-resin film layer in this order from the outermost layer side, the process comprising: a step (A) in which a pressure-sensitive adhesive layer of a support having the pressure-sensitive adhesive layer on at least one surface thereof is temporarily applied to at least one surface of the layered hard coat object to obtain a temporarily support-bearing layered hard coat object; a step (B) in which at least one processing method selected from the group consisting of router processing, water-jet processing, laser processing, and punching is applied to the temporarily support-bearing layered hard coat object to cut the temporarily support-bearing layered hard coat object into a given shape, thereby obtaining a temporarily support-bearing cut article; and a step (C) in which at least one kind of energy selected from the group consisting of heat and actinic rays is applied to the temporarily support-bearing cut article to reduce the strength of tackiness between the support and the article to 2 N/2.5 cm or less.
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Patent Agency Ranking
公开(公告)号：US11512176B2
公开(公告)日：2022-11-29
申请号：US16930243
申请日：2020-07-15
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Jun Fujimoto , Nozomu Washio , Taketo Hashimoto
Abstract: One embodiment provides a hard coat laminated film, comprising, in order from a surface layer side, a first hard coat, a second hard coat, and a transparent resin film layer, where the first hard coat is formed of a coating material including: (A) 100 parts by mass of a polyfunctional (meth)acrylate; (B) 0.01 to 7 parts by mass of a water repellent; (C) 0.01 to 10 parts by mass of a silane coupling agent; and (D) 0.1 to 10 parts by mass of resin microparticles having an average particle diameter of 0.5 to 10 μm, and containing no inorganic particles, and where the second hard coat is formed of a coating material containing inorganic particles. Another embodiment provides a hard coat laminated film having, in order from a surface layer side, a first hard coat, a second hard coat, and a resin film layer. The first hard coat includes a coating material that does not include inorganic particles. The second hard coat includes a coating material including inorganic particles. The adhesive film fulfills the conditions: (i) a total light transmission rate of at least 85%; (ii) a pencil hardness for the first hard coat surface of at least 5H; and (iii) a Y value for an XYZ color system of 1.5%-4.2%.
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公开(公告)号：US10816700B2
公开(公告)日：2020-10-27
申请号：US16060793
申请日：2016-11-25
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Nozomu Washio , Taketo Hashimoto
IPC: B32B27/18 , B32B27/30 , B32B27/08 , C09D5/00 , G02B1/14 , G02B1/18 , C09D7/40 , C08J7/04 , C09D133/10
Abstract: Embodiments provide a hard coat layered film having a first hard coat, a second hard coat, and a transparent resin film layer in order from an outer layer side, the first hard coat including (A) 100 parts by mass of a polyfunctional (meth)acrylate including 20% by mass or more of a tripentaerythritol acrylate, (B) 0.01-7 parts by mass of a water repellent, and (C) 0.01-10 parts by mass of a silane coupling agent, the first hard coat being formed from a coating material not including inorganic particles, and the second hard coat including (A′) 100 parts by mass of a polyfunctional (meth)acrylate and (D) 50-300 parts by mass of inorganic fine particles having an average particle diameter of 1-300 nm. According to at least one embodiment, component (A) may be a mixture of tripentaerythritol acrylate and one or more species selected from the group consisting of dipentaerythritol acrylate, monopentaerythritol acrylate, and polypentaerythritol acrylate.
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公开(公告)号：US11773229B2
公开(公告)日：2023-10-03
申请号：US16612646
申请日：2018-04-05
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Taketo Hashimoto
CPC classification number: C08J7/042 , B32B27/18 , B32B27/30 , B32B27/34 , B32B27/365 , C08J7/043 , C08J7/046 , G02B1/14 , B32B2250/05 , B32B2250/24 , B32B2250/40 , B32B2307/412 , B32B2307/536 , B32B2307/73 , C08J2433/14
Abstract: A first embodiment is a hard coat laminated film which sequentially includes a first hard coat layer and a transparent resin film layer from the surface layer side, and wherein the first hard coat layer is formed from a coating material that contains 100 parts by mass of (A) a copolymer of (a1) a polyfunctional (meth)acrylate and (a2) a polyfunctional thiol and 0.01-7 parts by mass of (B) a water repellent agent, while containing no inorganic particles. A second embodiment is a hard coat laminated film which sequentially includes a first hard coat layer and a transparent resin film layer from the surface layer side, and wherein: the first hard coat layer is formed from a coating material that contains (A) a copolymer of (a1) a polyfunctional (meth)acrylate and (a2) a polyfunctional thiol and (B) a water repellent agent, while containing no inorganic particles; and the surface of the first hard coat layer exhibits high abrasion resistance (steel wool resistance) as examined by a test under predetermined conditions with use of a JSPS-type tester in accordance with JIS L0849 (2013).
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公开(公告)号：US11065852B2
公开(公告)日：2021-07-20
申请号：US15559240
申请日：2016-02-01
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Jun Fujimoto , Nozomu Washio , Taketo Hashimoto
IPC: B32B27/20 , B32B27/30 , B32B7/12 , B32B38/00 , B32B27/06 , B29C48/21 , B32B23/18 , B32B27/16 , B32B27/40 , B32B7/02 , B32B27/32 , B32B7/04 , B32B23/08 , B32B27/36 , B32B23/04 , B32B27/08 , B32B27/34 , B32B27/28 , C09D7/40
Abstract: An embodiment provides an adhesive film having, in order from the surface layer side, a first hard coat, a second hard coat, a transparent resin film layer, and an adhesive layer. The first hard coat is formed from a coating that does not include inorganic particles. The second hard coat is formed from a coating that includes inorganic particles. The adhesive film satisfies the following conditions: (i) the total light transmittance is at least 85%; and (vii) the pencil hardness of the first hard coat surface is at least 5H. Another embodiment provides an adhesive film having, in order from the surface layer side, a first hard coat, a second hard coat, a transparent resin film layer, and an adhesive layer. The first hard coat is formed from a coating that does not include inorganic particles. The second hard coat is formed from a coating that includes inorganic particles. The adhesive film satisfies the following conditions: (i) the total light transmittance is at least 85%; (iv) the water contact angle at the first hard coat surface is at least 100 degrees; and (v) the water contact angle at the first hard coat surface after 20,000 reciprocal cotton rubs is at least 100 degrees.
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公开(公告)号：US10906131B2
公开(公告)日：2021-02-02
申请号：US15510043
申请日：2015-08-05
Applicant: RIKEN TECHNOS CORPORATION
Inventor： Taketo Hashimoto , Hiroyuki Tomomatsu
Abstract: Embodiments are directed to a method for processing a film, which includes: (A) a step wherein protective films are temporarily bonded to both surfaces of a film that is a material to be processed, thereby obtaining a film to be processed to both surfaces of which the protective films are bonded; and (B) a step wherein the film to be processed to both surfaces of which the protective films are bonded is cut using a laser having a wavelength at which the protective films have an absorbance of 50% or more. Other embodiments are directed to a method for processing a film, which includes: (A) a step wherein protective films are temporarily bonded to both surfaces of a film that is a material to be processed, thereby obtaining a film to be processed to both surfaces of which the protective films are bonded; and (B′) a step wherein the film to be processed to both surfaces of which the protective films are bonded is cut using a laser having a wavelength at which the film to be processed has an absorbance of 50% or more and the protective films have an absorbance of 50% or more.
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