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公开(公告)号：US20230312970A1
公开(公告)日：2023-10-05
申请号：US18206220
申请日：2023-06-06
发明人： Kazuki SEKINE , Hiromi FUJIMOTO , Mika MATSUSHIMA , Masatoshi OHTONARI , Sayaka SAITO , Takuma OKADA , Mari NAKAMOTO
IPC分类号： C09D133/08 , C08F220/18 , B05D7/00 , C08F2/06 , C08F212/08 , C08F220/06 , C08F220/14 , C08F220/20 , C08K5/3492 , C08L33/12 , C09D133/12 , C09D167/00 , C09D175/04
CPC分类号： C09D133/08 , C08F220/1804 , C08F220/1808 , B05D7/572 , C08F2/06 , C08F212/08 , C08F220/06 , C08F220/14 , C08F220/20 , C08K5/34922 , C08L33/12 , C09D133/12 , C09D167/00 , C09D175/04 , B05D2420/01 , B05D2420/02 , B05D2420/03 , C08L2201/50 , C08L2207/53
摘要： The object of the present invention is to provide an aqueous coating composition which exhibits a small viscosity change and can form a coating film having a superior coating film appearance even when the amount of the solvent contained in the aqueous coating composition is reduced due to changes in the coating environment.
The present invention provides an aqueous coating composition comprising an acrylic resin dispersion (A) and a melamine resin (B), wherein the acrylic resin dispersion (A) has a core/shell structure, the acrylic resin dispersion (A) is a dispersion of a solution-polymerization product of a core part preparation monomer (a-1) and a shell part preparation monomer (a-2), wherein the shell part preparation monomer (a-2) comprises an acid group-containing polymerizable monomer, the mass ratio of the core part to the shell part of the acrylic resin dispersion (A) is in the range of core part/shell part=30/70 to 70/30, the shell part of the acrylic resin dispersion (A) has an acid group, and the neutralization rate of the acid groups in the shell part is 50% or more, the weight-average molecular weight of the acrylic resin dispersion (A) is in the range of 10,000 to 70,000, the core part preparation monomer (a-1) has an acid value of 10 mg KOH/g or less, and the shell part preparation monomer (a-2) has an acid value of 10 mg KOH/g or more and 70 mg KOH/g or less, the whole monomer mixture comprising the core part preparation monomer (a-1) and the shell part preparation monomer (a-2) has an acid value of 10 mg KOH/g or more and 30 mg KOH/g or less, the glass transition temperature of the acrylic resin dispersion (A) is in the range of −10 to 60° C., and the melamine resin (B) comprises a hydrophobic melamine resin.-
公开(公告)号：US20240091998A1
公开(公告)日：2024-03-21
申请号：US18039521
申请日：2021-12-03
发明人： Jumpei TAKAHASHI , Takuma OKADA , Kei TAKIGAWA , Kazuhito KOBAYASHI , Takeki HOSOKAWA , Takamitsu WATANABE
CPC分类号： B29C45/14811 , B29C45/14688 , G02B1/111 , G02B1/14 , B29C2045/14713 , B29K2995/007 , B29K2995/0097
摘要： Provided is an after-cure type laminated film having a low reflectance. A laminated film comprising: a transparent support substrate, an uncured hard coat layer formed on at least one surface of the transparent support substrate, and an uncured optical interference layer formed on the uncured hard coat layer, wherein the uncured hard coat layer comprises an active energy ray-curable composition for forming a hard coat layer, the uncured optical interference layer comprises an active energy ray-curable composition for forming an optical interference layer, the transparent support substrate has a thickness of 50 μm or more and 600 μm or less, a stretch ratio of the laminated film at 160° C. is 50% or more, and the laminated film heat-treated at a temperature of 90° C. for 30 minutes has a minimum value RAH of a reflectance taken between wavelengths of 380 nm and 780 nm of 2% or less and measured from a side of the uncured optical interference layer.
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公开(公告)号：US20220299681A1
公开(公告)日：2022-09-22
申请号：US17629944
申请日：2020-07-22
摘要： Provided is a laminated film that can be molded into a complicated shape. A laminated film comprising a transparent support substrate; an uncured hard coat layer formed on at least one surface of the transparent support substrate; and an uncured optical interference layer formed on the uncured hard coat layer, wherein the uncured hard coat layer comprises an active energy ray-curable composition for forming a hard coat layer, the uncured optical interference layer comprises an active energy ray-curable composition for forming a optical interference layer, a thickness of the transparent support substrate is 50 μm or more and 600 μm or less, a luminous reflectance including regular reflected light measured from an uncured optical interference layer side is 0.1% or more and 4.0% or less, and a stretch ratio at 160° C. is 50% or more.
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公开(公告)号：US20220288914A1
公开(公告)日：2022-09-15
申请号：US17629927
申请日：2020-07-22
摘要： Provided is a method for manufacturing a laminated film that can be molded into a complicated shape. A method for manufacturing a laminated film comprising: a step of forming an uncured hard coat layer by applying an active energy-ray curable composition for forming a hard coat layer to one side of a first support substrate having a thickness of 50 μm or more and 600 μm or less, and then drying the composition; a step of forming an uncured optical interference layer by applying an active energy-ray curable composition for forming a optical interference layer on one surface of a second support substrate so that the thickness of the uncured optical interference layer is between 15 nm or more and 200 nm or less, and then drying the composition; and a lamination step of laminating a surface of the uncured hard coat layer opposite the first support substrate and a surface of the uncured optical interference layer opposite the second support substrate to obtain a laminated film, wherein a stretch ratio of the laminated film at 160° C. is 50% or more.
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公开(公告)号：US20210363375A1
公开(公告)日：2021-11-25
申请号：US16766882
申请日：2018-11-30
发明人： Yasunori MIWA , Takuhiro KAKII , Takanori INAZUMI , Katsumi MIZUGUCHI , Hiroshi IIDA , Takuma OKADA
IPC分类号： C09D133/06 , C09D7/62 , C09D7/63 , C08K5/5419 , C08G18/80 , C08G18/73 , C08K3/36 , C08K9/08 , B05D7/00 , C08G18/54
摘要： The present invention provides a coating composition capable of forming a coating film having a good appearance and design of a coating film and having coating film properties such as scratch resistance with a good balance. Furthermore, the present invention provides a method for forming a multilayer coating film including forming a coating film using the coating composition of the present invention.
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公开(公告)号：US20220252762A1
公开(公告)日：2022-08-11
申请号：US17612438
申请日：2020-05-19
摘要： Provided is a coating member having improved both in anti-reflection property and design property. The present invention provides a coating member comprising a substrate layer and an optical interference layer formed from an optical interference layer-forming composition, wherein the optical interference layer is disposed on at least a part of a viewing side surface of the substrate layer, the optical interference layer is in a range of more than 0 nm and less than or equal to 600 nm, the optical interference layer has a relationship of 0.08
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公开(公告)号：US20210261809A1
公开(公告)日：2021-08-26
申请号：US17255628
申请日：2019-06-25
发明人： Kazuki SEKINE , Hiromi FUJIMOTO , Mika MATSUSHIMA , Masatoshi OHTONARI , Sayaka SAITO , Takuma OKADA , Mari NAKAMOTO
IPC分类号： C09D133/08 , C09D133/12 , C09D167/00 , C09D175/04 , C08F2/06 , C08F220/06 , C08F220/14 , C08F220/18 , C08F220/20 , C08F212/08 , C08L33/12 , C08K5/3492 , B05D7/00
摘要： An aqueous coating composition comprising an acrylic resin dispersion (A) having a core/shell structure and a melamine resin (B) comprising a hydrophobic melamine resin, wherein the acrylic resin dispersion (A) is a dispersion of a solution-polymerization product of a core part preparation monomer (a-1) and a shell part preparation monomer (a-2), wherein the shell part preparation monomer (a-2) comprises an acid group-containing polymerizable monomer. The aqueous coating composition exhibits a small viscosity change and can form a coating film having a superior coating film appearance, even when the amount of the solvent contained in the aqueous coating composition is reduced due to changes in the coating environment.
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