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公开(公告)号：US20200306794A1
公开(公告)日：2020-10-01
申请号：US16650495
申请日：2018-09-28
IPC分类号： B05D5/06 , B05D1/36 , B05D7/00 , B05D3/02 , C09D5/00 , C09D5/29 , C09D7/62 , C09D7/40 , C09D133/06 , C09D175/04
摘要： Provided is a method for forming a multilayer coating film including the following steps (1) to (4): (1) applying a base paint (X) to a substrate to form a base coating film; (2) applying a specific effect pigment dispersion (Y) to the base coating film formed in step (1) to form an effect coating film with a specific dry film thickness; (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film; and (4) heating the uncured base coating film, the uncured effect coating film, and the uncured clear coating film formed in steps (1) to (3) to simultaneously cure these three coating films.
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公开(公告)号：US20190001370A1
公开(公告)日：2019-01-03
申请号：US16074547
申请日：2017-02-03
发明人： Masayuki ITOH , Nobuhiko NARITA , Tatsuo KURAMOCHI
IPC分类号： B05D1/36 , B05D1/04 , B05D5/06 , B05D7/00 , C09D5/29 , C09D7/40 , C09D167/02 , C09D175/04
摘要： This invention relates to a multilayer coating film sequentially comprising, on a substrate, a colored coating film, an effect coating film, and a clear coating film, wherein the multilayer coating film has a lightness L*110 within a range of 60 to 90, the lightness L*110 being based on a spectral reflectance of light illuminated at an angle of 45 degrees with respect to the coating surface and received at an angle of 110 degrees with respect to the specularly reflected light; a 60-degree specular gloss within a range of 105 to 180, a graininess HG within a range of 10 to 40; and a flip-flop value within a range of 1.0 to 1.8.
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公开(公告)号：US20220168777A1
公开(公告)日：2022-06-02
申请号：US17441112
申请日：2019-12-13
发明人： Hirokazu OKAZAKI , Nobuhiko NARITA
IPC分类号： B05D7/00
摘要： Provided is a multilayer coating film comprising an effect base coating film and a colored base coating film formed on the effect base coating film, wherein when X=[(C*45)2+(C*75)2]1/2 and Y=[(L*15)2+(C*15)2]1/2+[(L*25)2+(C*25)2]1/2, X is 80 or more and Y is 145 or more (wherein C*15, C*25, C*45, and C*75 represent chroma values calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees and received at light-receiving angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from specular reflection light to the side closer to the incident light; and L*15 and L*25 represent lightness values when light illuminated at an incident angle of 45 degrees is received at light-receiving angles of 15 degrees and 25 degrees deviated from specular reflection light to the side closer to the incident light).
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公开(公告)号：US20210078313A1
公开(公告)日：2021-03-18
申请号：US16772377
申请日：2018-12-14
发明人： Ikumi ONO , Nobuhiko NARITA , Hirokazu OKAZAKI
摘要： A laminate containing a metallic base layer and a transparent colored layer formed on the metallic base layer. The metallic base layer contains an aluminum pigment, a light-scattering component, a surface adjusting agent, and a rheology control agent, the aluminum pigment being present in an amount of 15 to 70 parts by mass, on a solids basis; and the light-scattering component being present in an amount of 5 to 55 parts by mass, on a solids basis, based on 100 parts by mass of the metallic base layer. The transparent colored layer contains a resin component, a curing agent, and a color pigment, the color pigment being present in an amount of 0.5 to 10 parts by mass, based on 100 parts by mass of the resin solids content of the transparent colored layer.
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公开(公告)号：US20220161294A1
公开(公告)日：2022-05-26
申请号：US17426028
申请日：2019-12-18
发明人： Hirokazu OKAZAKI , Nobuhiko NARITA
摘要： Provided is a multilayer coating film comprising a colored base coating film and an effect base coating film formed on the colored base coating film, wherein the hue angle h in the L*C*h color space diagram is within the range of 30° to 70°, and when the following formulas hold: X=[(C*45)2+(C*75) 2]1/2, and Y=[(L*15)2+(C*15)2]1/2+[(L*25)2+(C*25)2]1/2, X is 80 or more and Y is 140 or more; provided that C*15, C*25, C*45, and C*75 represent the chroma of the multilayer coating film when light is illuminated at an angle of 45 degrees and received at angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from the specular reflection light in the incident light direction, and L*15 and L*25 similarly represent the lightness of the multilayer coating film.
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公开(公告)号：US20210348004A1
公开(公告)日：2021-11-11
申请号：US17278428
申请日：2019-09-24
发明人： Kenji SAKAI , Nobuhiko NARITA
摘要： The present invention provides an effect pigment dispersion that contains water, a wetting agent (A), a flake-effect pigment (B), and specific cellulose nanofibers (C). The effect pigment dispersion has a solids content of 0.1 to 10 parts by mass, per 100 parts by mass of all of the components of the effect pigment dispersion; and has a viscosity of 100 to 10000 mPa·sec as measured with a Brookfield viscometer at a rotational speed of 6 revolutions per minute.
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公开(公告)号：US20210086228A1
公开(公告)日：2021-03-25
申请号：US16772265
申请日：2018-12-14
发明人： Ikumi ONO , Nobuhiko NARITA , Hirokazu OKAZAKI
摘要： A laminate containing a metallic base layer and a transparent colored layer formed on the metallic base layer, wherein, when X=[(C*45)2+(C*75)2)]1/2, and Y=[(L*15)2+(C*15)2)]1/2+[(L*25)2+(C*25)2)]1/2, X is 64 or more, and Y is 191 or more; and the measured value of graininess (HG value) is 45 or less, with the proviso that C*15, C*25, C*45, and C*75 represent chroma calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees with respect to the laminate and received at respective angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from the specular reflection light, and that L*15 and L*25 represent lightness calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees with respect to the laminate and received at respective angles of 15 degrees and 25 degrees deviated from the specular reflection light.
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8.发明申请公开(公告)号：US20220403204A1
公开(公告)日：2022-12-22
申请号：US17772792
申请日：2020-11-11
发明人： Kenji SAKAI , Nobuhiko NARITA
IPC分类号： C09D133/08 , C09D7/61 , C09D7/40 , C09D7/43
摘要： The present invention addresses the problem of providing an aqueous paint composition that has a relatively high solid content ratio and that is capable of forming a coating film having excellent brilliance. The present invention provides an aqueous paint composition that contains (A) a water-dispersible hydroxy-containing acrylic resin, (B) a flake-effect pigment, and (C) a water-dispersible cellulose-based rheology control agent, wherein the content of the flake-effect pigment (B) is within a range of 1 to 50 parts by mass based on 100 parts by mass of the resin solids content in the aqueous paint composition, and the aqueous paint composition has a solids content of more than 10 mass % and 35 mass % or less.
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公开(公告)号：US20210214571A1
公开(公告)日：2021-07-15
申请号：US17057287
申请日：2019-05-22
发明人： Yosuke HASEGAWA , Nobuhiko NARITA , Masayuki ITOH , Kenji SAKAI
摘要： The problem to be solved by the present invention is to provide an effect pigment dispersion that exhibits excellent water resistance, that can form metallic or pearly luster, and that further exhibits high stability; and to provide a method for forming a multilayer coating film. The present invention provides an effect pigment dispersion that contains water, a wetting agent (A), a flake-effect pigment (B), and a phosphate-group-containing cellulose-based rheology control agent (C). The effect pigment dispersion has a solids content of 0.1 to 10 parts by mass, per 100 parts by mass of all of the components of the effect pigment dispersion; and has a viscosity of 100 to 10000 mPa·sec as measured with a Brookfield viscometer at a rotational speed of 6 revolutions per minute.
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公开(公告)号：US20200269278A1
公开(公告)日：2020-08-27
申请号：US16646718
申请日：2018-09-14
摘要： A method for forming a multilayer coating film comprising the steps of: (1) applying a base paint (X) to a substrate to form a base coating film, (2) applying an effect pigment dispersion (Y) to the base coating film formed in step (1) to form an effect coating film, (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film, and (4) heating the uncured base coating film, the uncured effect coating film, and the uncured clear coating film formed in steps (1) to (3) to thereby simultaneously cure these three coating films; wherein the effect pigment dispersion (Y) contains water, a black pigment (A), a vapor deposition metal flake pigment (B), and a rheology control agent (C).
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