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公开(公告)号:US20250092282A1
公开(公告)日:2025-03-20
申请号:US18969207
申请日:2024-12-04
Applicant: TOPPAN HOLDINGS INC.
Inventor: Masashi HATTORI
IPC: C09D171/02 , C08J3/28 , C09D7/40
Abstract: A decorative sheet includes a primary film layer and a surface protective layer. The surface protective layer has a glossiness of 12 or less and has an uneven structure on a surface. The uneven structure has an RSm of 10 or more and 310 or less. The surface protective layer has a Martens hardness of 5 or more and 142 or less and contains an ionizing radiation-curable resin as a main material. The ionizing radiation-curable resin contains at least one of an alkylene repeating structure and an alkylene oxide repeating structure having a predetermined structure, and contains a resin obtained by polymerizing an acrylic monomer having 2 or more and 4 or less acryloyloxy groups. The acrylic monomer has 2 acryloyl groups, an acryloyl group chain length of 10 or more and 28 or less, and a viscosity of 100 mPa·s or less at 25° C.
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公开(公告)号:US20250083428A1
公开(公告)日:2025-03-13
申请号:US18952313
申请日:2024-11-19
Applicant: TOPPAN HOLDINGS INC.
Inventor: Masashi HATTORI , Erika AKUTSU
Abstract: A decorative sheet includes a primary film layer and a surface protective layer, in which the surface protective layer has a gloss level of 15 or less; the surface protective layer has on its surface a ridged portion to form an uneven shape; the surface protective layer contains as a main material an ionizing radiation-curable resin; the ionizing radiation-curable resin contains as a main component an acrylic resin containing a repeating structure; the repeating structure is one of an alkylene structure, an ethylene oxide structure, a propylene oxide structure, and an ε-caprolactone structure; and an acrylic monomer forming the acrylic resin has two or more and four or less acryloyl groups, and a shaping parameter expressed by Formula 1 is in a range of 0.8 or more and 3.4 or less.
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公开(公告)号:US20250115782A1
公开(公告)日:2025-04-10
申请号:US18984330
申请日:2024-12-17
Applicant: TOPPAN HOLDINGS INC.
Inventor: Masashi HATTORI
Abstract: A decorative sheet includes a primary film layer; and a surface protection layer on one surface of the primary film layer. The surface protection layer has an irregular structure having a plurality of ridged portions protruding in a ridged shape and has a ratio of a section height difference Rdc to the thickness t of the surface protection layer, the ratio Rdc/t being 0.1 or greater and 0.2 or less, the thickness t of the surface protection layer is 2 μm or more and 18 μm or less, contains a cured article of a resin and particles, with the particles having an average particle size of 3 μm or more and contained in the surface protection layer in an amount of 3 parts by mass or more and 11 parts by mass or less to the resin, and the surface protection layer has a gloss level less than 10.
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公开(公告)号:US20240316593A1
公开(公告)日:2024-09-26
申请号:US18735518
申请日:2024-06-06
Applicant: TOPPAN HOLDINGS INC.
Inventor: Masashi HATTORI , Erika AKUTSU , Yuki TAKABAYASHI , Yusuke IIJIMA
CPC classification number: B05D5/02 , B05D3/065 , B05D2518/00
Abstract: A decorative sheet includes a primary film layer and a surface protection layer provided on one surface of the primary film layer. The surface protection layer has, in its surface, a ridged portion protruding in a ridged pattern to form an irregular shape. The irregular shape of the surface protection layer has RSm/Ra within the range of 10 or greater and 300 or smaller. The surface protection layer includes an ionizing radiation-curable resin as a main material. The ionizing radiation-curable resin is a trifunctional acrylic resin with the main component having a repeating structure. The repeating structure is any of an ethylene oxide structure, a propylene oxide structure, and an ε-caprolactone structure. The single-bonded carbon ratio in the main component of the ionizing radiation-curable resin falls within the range of 0.725 or greater and 0.955 or smaller.
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