公开(公告)号：US11370986B2

公开(公告)日：2022-06-28

申请号：US17264980

申请日：2019-08-06

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Yoshiyuki Sekine

IPC: C10M107/04 ,  C10M155/02 ,  C10M169/04 ,  C10N50/08

Abstract: A sliding material composition comprising a polymer component comprising (A) a high-density polyethylene and (B) an olefin block copolymer; and (C) a silane coupling agent; wherein the Si content is 0.1 to 15% by mass based on the mass of the entire sliding material composition. The sliding material composition has the same level of slidability as a resin to which particles are added.

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.

公开(公告)号：US11248141B2

公开(公告)日：2022-02-15

申请号：US16618651

申请日：2018-04-23

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Motohiro Shimizu

IPC: C08F220/18 ,  C08F220/36 ,  C09D133/14 ,  C03C17/32 ,  C08F220/30 ,  C08F220/34 ,  C08L33/12 ,  C09D133/12 ,  C08J7/043 ,  C08J7/046

Abstract: Embodiments provide an active energy curable resin composition containing (A) 100 parts by mass of a UV-absorbing polymer and (B) 20-600 parts by mass of a polyfunctional (meth)acrylate. The UV-absorbing polymer (A) contains: (a1) 10-60 mol % of a structural unit derived from a (meth)acrylate including one or more of one or more types of backbone selected from the group consisting of a benzotriazole backbone, a triazine backbone, and a benzophenone backbone per molecule; (a2) 10-50 mol % of a structural unit derived from an alkyl (meth)acrylate; and (a3) 10-70 mol % of a structural unit derived from a compound including one or more isocyanate groups per molecule; the sum of the structural unit derived from a (meth)acrylate of component (a1), the structural unit derived from an alkyl (meth)acrylate of component (a2), and the structural unit derived from an isocyanate-group-including compound of component (a3) being 100 mol %.

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.

公开(公告)号：US20210122146A1

公开(公告)日：2021-04-29

申请号：US16622643

申请日：2018-05-18

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Hideaki YAMBE ,  Kohei NAKASHIMA

IPC: B32B27/08 ,  C08G64/42 ,  C08F20/12 ,  B32B7/12 ,  B32B7/027 ,  B32B27/30 ,  B32B27/36

Abstract: Embodiments provide a multilayer film in which: a first acrylic resin layer (α1), an aromatic polycarbonate resin layer (β), and a second acrylic resin layer (α2) are directly laminated in the stated order; the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (β) is a product of ester exchange between a polycarbonic acid ester of an aromatic dihydroxy compound and a low-crystalline or amorphous aromatic polyester; and the relationships (Tβ−Tα1)≤30 and (Tβ−Tα2)≤30 (where Tal is the glass transition temperature of the acrylic resin constituting the first acrylic resin layer (α1), Tα2 is the glass transition temperature of the acrylic resin constituting the second acrylic resin layer (α2), Tβ is the glass transition temperature of the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (β), and all of the temperatures are measured in degrees Celsius) are satisfied. The glass transition temperature of the aromatic polycarbonate resin should be 100-140° C.

公开(公告)号：US10689530B2

公开(公告)日：2020-06-23

申请号：US15516312

申请日：2015-09-11

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Jun Fujimoto ,  Nozomu Washio

IPC: C08J7/04 ,  C09D133/10 ,  B05D3/14 ,  C09D7/40 ,  B32B27/00 ,  B32B27/16 ,  C09J133/26 ,  C09D4/00 ,  C09J7/38 ,  B32B27/20 ,  B32B7/12 ,  B32B27/08 ,  B32B27/28 ,  C09J7/20 ,  C09J7/21 ,  B32B7/04 ,  C09J7/28 ,  C09J7/25 ,  C09J7/26 ,  B32B27/32 ,  B32B27/36 ,  B32B27/30 ,  C09J7/22

Abstract: Embodiments provide a pressure-sensitive adhesive film having (α) a poly(meth)acrylimide-based resin film layer and (γ) a pressure-sensitive adhesive agent layer in that order from the surface layer side and having a total light transmittance of 80% or higher. The pressure-sensitive adhesive film may further have (δ) a hard coat layer on the surface layer side of the poly(meth)acrylimide-based resin film layer (α). This hard coat layer (δ) may comprise an active energy ray-curable resin composition that contains (A) 100 parts by mass of a polyfunctional (meth)acrylate; (B) 0.2-4 parts by mass of a compound having an alkoxysilyl group and a (meth)acryloyl group; (C) 0.05-3 parts by mass of organic titanium; and (D) 5-100 parts by mass of fine particles having an average particle diameter of 1-300 nm. This active energy ray-curable resin composition may further contain (E) 0.01-7 parts by mass of a water-repelling agent.

公开(公告)号：US10549881B2

公开(公告)日：2020-02-04

申请号：US16116398

申请日：2018-08-29

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Motohiro Shimizu

IPC: B65D5/64 ,  B65D5/22 ,  B65D85/672 ,  B65D5/68 ,  B65D5/42 ,  B65D83/08

Abstract: Embodiments provide a packing box whereby strength is improved and efficiency of opening, content retrieval, etc. is improved. Embodiments provide a packing box obtained from an upper cover and a lower box configured from cardboard for accommodating articles therein, in which: the upper cover is obtained from a top board that covers the entire interior of the lower box and side boards that extend vertically downward from each side of the top board and substantially covers the side surfaces of the lower box; and at least one notch is provided on one of the lower edges of the upper cover.

公开(公告)号：US10538673B2

公开(公告)日：2020-01-21

申请号：US15809821

申请日：2017-11-10

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Ryoichi Tanabe ,  Nozomu Washio

IPC: C08K5/541 ,  C09D4/00 ,  C09D7/40 ,  G06F3/041 ,  B32B15/09 ,  B32B27/36 ,  C09D7/47 ,  B05D3/06 ,  C09D133/14

Abstract: Embodiments of the invention provide a hard coat film, including a film base material and a hard coat arranged on at least one surface of the film base material, wherein the hard coat is comprised of an active energy ray-curable resin composition. The active energy ray-curable resin composition includes 100 parts by mass of (P) a urethane (meth)acrylate compound, 0.02 to 5 parts by mass of (Q) organic fine particles having an average particle size of 10 to 300 nm, and 0.0002 to 2 parts by mass of (R) an acrylic silicon leveling agent. The (R) acrylic silicon leveling agent is loaded in the active energy ray-curable resin composition in an amount of 1 part by mass or more based on 100 parts by mass of the (Q) organic fine particles.

公开(公告)号：US20190352531A1

公开(公告)日：2019-11-21

申请号：US16529103

申请日：2019-08-01

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Yasuhiro ITAGAKI ,  Shigekazu ITO

IPC: C09D135/02 ,  C09D135/00 ,  C08J7/04 ,  B32B27/20 ,  B32B27/30 ,  B32B27/36 ,  C08K3/36 ,  C08L35/02 ,  B32B27/18 ,  G02B1/10 ,  C08F290/14 ,  C08F290/06 ,  C08F2/44

Abstract: Embodiments relate to a hard coat-laminated film for a touch panel display face plate, the hard coat-laminated film including: a transparent resin film, and a hard coat formed on at least one surface of the transparent resin film from a coating material including an active energy ray-curable resin composition. The hard coat-laminated film meets the following requirements (1-i) to (1-v): (1-i) a total light transmittance of 80% or higher, (1-ii) a haze of 3.0% or lower, (1-iii) a yellowness index of 3 or lower, (1-iv) a water contact angle of a touch surface of 100° or larger; and (1-v) a water contact angle of the touch surface of 100° or larger after 20,000-times reciprocal cotton wiping of the touch panel.

公开(公告)号：US10450431B2

公开(公告)日：2019-10-22

申请号：US14904025

申请日：2014-06-11

Applicant: RIKEN TECHNOS CORPORATION

Inventor： Kohei Nakashima ,  Kazutaka Yamada ,  Hidemasa Sugimoto ,  Yoshihiro Zennyoji

IPC: B29C59/16 ,  C08J5/18 ,  B29C59/10 ,  B29C71/04 ,  B32B27/06 ,  B32B27/28 ,  B32B27/30 ,  C08J7/04 ,  C08J7/06 ,  C08J7/12 ,  B29C48/08 ,  B29C48/00 ,  B29C48/30 ,  B29C48/92 ,  B29C48/305 ,  B29C48/40 ,  B29C48/88 ,  B29K79/00 ,  B29L7/00 ,  B29C48/27

Abstract: Embodiments of the invention relate to a poly(meth)acrylimide film and a method for manufacturing such a film. At least one embodiment provides a poly(meth)acrylimide film that has (i) a total light transmittance of over 90% and (ii) haze of 2.0% or less. This film preferably has retardation of less than 50 nm. The method for manufacturing this film includes the following steps: (A) using a device provided with an extruder and a T die, a poly(meth)acrylimide molten film is continuously extruded from the T die; and (B) the poly(meth)acrylimide molten film is loaded by being fed between a rotating or circulating first mirrored-surface body and a rotating or circulating second mirrored-surface body, and then the film is pressed. During these steps, (C) the surface temperature of the first mirrored-surface body is in the range 100-200° C., and (D) the surface temperature of the second mirrored-surface body is in the range 20-200° C.