公开(公告)号：US20240392051A1

公开(公告)日：2024-11-28

申请号：US18560987

申请日：2022-05-13

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Koki HASHIMOTO ,  Eiichi IMOTO ,  Chihiro YOSHIDA

IPC: C08F220/18 ,  B05C5/02 ,  C08F218/08 ,  C09D5/00 ,  C09D5/02 ,  C09D131/04 ,  C09D133/08

Abstract: Provided is a paint-protective coating material formed from a liquid coating composition. The coating composition comprises, as its base polymer, a polymer (A) that is a polymerization product of monomers comprising an acrylic monomer. The polymer (A) has an SP value of 9.8 (cal/cm3)1/2 or greater and a glass transition temperature of 0° C. or lower, calculated based on the composition of the monomers forming the polymer (A).

公开(公告)号：US20240263033A1

公开(公告)日：2024-08-08

申请号：US18561059

申请日：2022-05-13

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Koki HASHIMOTO ,  Eiichi IMOTO ,  Chihiro YOSHIDA

IPC: C09D133/06 ,  C08F218/08 ,  C08F220/18 ,  C09D5/02

CPC classification number: C09D133/064 ,  C08F218/08 ,  C08F220/1804 ,  C09D5/022 ,  C09D133/062 ,  C08F2800/10

Abstract: Provided is a paint-protective coating material formed from a liquid coating composition. The coating composition comprises, as its base polymer, a polymer (A) that is a polymerization product of monomers comprising an acrylic monomer. The paint-protective coating material has a storage modulus at 70° C. of 0.40 MPa or higher and 1.30 or lower, a storage modulus at 23° C. of 250 MPa or higher and 800 MPa or lower, and a storage modulus at −30° C. of 2300 MPa or less.

公开(公告)号：US20210012934A1

公开(公告)日：2021-01-14

申请号：US17024033

申请日：2020-09-17

Applicant: NITTO DENKO CORPORATION

Inventor： Kenichi FUJIKAWA ,  Takashi YAMAMOTO ,  Hirofumi EBE ,  Makoto FUJIHARA ,  Eiichi IMOTO ,  Tomohiro OMURE

IPC: H01F1/053 ,  H01F7/02 ,  H01F1/057 ,  B22F1/00 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/16

Abstract: Provided are: a sintered body that forms a rare-earth magnet and is configured in a manner such that the divergence between the orientation angles of the easy axes of magnetization of magnet material particles and the orientation axis angle of the magnet material particles is kept within a prescribed range in an arbitrary micro-section of a magnet cross-section; and a rare-earth sintered magnet. This sintered body for forming a rare-earth magnet has two or more different regions exhibiting an orientation axis angle of at least 20°, given that the orientation axis angle is defined as the highest-frequency orientation angle among the orientation angles of the easy magnetization axes, relative to a pre-set reference line, of a plurality of magnet material particles in a rectangular section at an arbitrary position in a plane including the thickness direction and the widthwise direction.

公开(公告)号：US20180108464A1

公开(公告)日：2018-04-19

申请号：US15559654

申请日：2016-03-24

Applicant: NITTO DENKO CORPORATION

Inventor： Kenichi FUJIKAWA ,  Takashi YAMAMOTO ,  Hirofumi EBE ,  Makoto FUJIHARA ,  Eiichi IMOTO ,  Tomohiro OMURE

IPC: H01F1/053 ,  C22C38/16 ,  C22C38/00 ,  C22C38/12 ,  C22C38/10 ,  C22C38/06 ,  B22F1/00

CPC classification number: H01F1/0536 ,  B22F1/0062 ,  B22F2301/355 ,  B22F2304/10 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/16 ,  H01F1/0577 ,  H01F7/02 ,  H01F41/0273

Abstract: Provided are: a sintered body that forms a rare-earth magnet and is configured in a manner such that the divergence between the orientation angles of the easy axes of magnetization of magnet material particles and the orientation axis angle of the magnet material particles is kept within a prescribed range in an arbitrary micro-section of a magnet cross-section; and a rare-earth sintered magnet. This sintered body for forming a rare-earth magnet has two or more different regions exhibiting an orientation axis angle of at least 20°, given that the orientation axis angle is defined as the highest-frequency orientation angle among the orientation angles of the easy magnetization axes, relative to a pre-set reference line, of a plurality of magnet material particles in a rectangular section at an arbitrary position in a plane including the thickness direction and the widthwise direction.

公开(公告)号：US20220363940A1

公开(公告)日：2022-11-17

申请号：US17745173

申请日：2022-05-16

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Eiichi IMOTO ,  Chihiro YOSHIDA ,  Koki HASHIMOTO

IPC: C09D133/20 ,  C09D5/20 ,  C09D7/61

Abstract: Provided is a paint-protective coating material formed from an acrylic coating composition comprising an acrylic polymer as base polymer. The acrylic polymer-forming monomers includes a monomer (mT) having a homopolymer Tg of 90° C. or higher and a monomer (mL) having a homopolymer Tg of −30° C. or lower. The monomer (mT) includes at least acrylonitrile. In the monomers, the monomers (mT) and (mL) have a molar ratio (mT/mL) of 0.8 or higher and 1.5 or lower. The paint-protective coating material has storage moduli of 150 MPa or higher and 1000 MPa or lower at 23° C., and 0.40 MPa or higher at 70° C.

公开(公告)号：US20170187258A1

公开(公告)日：2017-06-29

申请号：US15315451

申请日：2015-05-25

Applicant: NITTO DENKO CORPORATION

Inventor： Kenichi FUJIKAWA ,  Katsuya KUME ,  Toshinobu HOSHINO ,  Miho YAMAGUCHI ,  Masakazu MORIMOTO ,  Makoto FUJIHARA ,  Toshiaki OKUNO ,  Eiichi IMOTO ,  Hirofumi EBE ,  Tomohiro OMURE ,  Izumi OZEKI ,  Yuki KATO ,  Takashi YAMAMOTO ,  Shoichiro SAITO

IPC: H02K1/27 ,  H01F7/02 ,  H01F41/02 ,  H02K15/03

CPC classification number: H02K1/2786 ,  H01F7/02 ,  H01F7/021 ,  H01F41/0266 ,  H01F41/028 ,  H02K1/02 ,  H02K1/27 ,  H02K1/2733 ,  H02K1/278 ,  H02K15/03

Abstract: Raw material magnet is milled to magnet powder, and the magnet powder thus milled is mixed with a binder to form a compound 12. Then, the compound 12 thus formed is molded to a green sheet 14 having a sheet shape. Thereafter, a magnetic field orientation is carried out by applying a magnetic field to the green sheet 14 thus molded, and then, the green sheet 14 having been subjected to the magnetic field orientation is shaped to a product shape by deforming thereof. Thereafter, the permanent magnet 1 is produced by sintering thereof. The permanent magnet 1 has a ring shape, and is constituted such that an axis of easy magnetization may be orientated at a slant so as to converge in a direction along a converging axis P which is set to a radius direction as well as to a center direction of the ring shape.

公开(公告)号：US20180130581A1

公开(公告)日：2018-05-10

申请号：US15559652

申请日：2016-03-24

Applicant: NITTO DENKO CORPORATION

Inventor： Kenichi FUJIKAWA ,  Katsuya KUME ,  Kazuo OUCHI ,  Toshinobu HOSHINO ,  Masakazu MORIMOTO ,  Hirofumi ONO ,  Katsuyuki NAKABAYASHI ,  Miho YAMAGUCHI ,  Hiroshi MATSUO ,  Toshiaki OKUNO ,  Makoto FUJIHARA ,  Eiichi IMOTO ,  Hirofumi EBE ,  Tomohiro OMURE ,  Izumi OZEKI ,  Takashi YAMAMOTO ,  Yuki KATO ,  Tomoya MATSUDA ,  Shoichiro SAITO

IPC: H01F1/08 ,  H01F41/02 ,  H01F1/057 ,  H02K1/27 ,  H01F7/02

CPC classification number: H01F1/086 ,  H01F1/057 ,  H01F1/0577 ,  H01F7/02 ,  H01F41/0273 ,  H01F41/028 ,  H01F41/0293 ,  H02K1/27

Abstract: Provided is a method for producing a sintered body that forms a rare-earth permanent magnet, has a single sintered structure and an arbitrary shape, and has easy magnetization axis orientations of different directions applied to the magnet material particles in a plurality of arbitrary regions. This method forms a three-dimensional first molded article from a composite material formed by mixing a resin material and magnet material particles containing a rare-earth substance. The first molded article is then subjected to a deforming force and a second molded article is formed in which the orientation direction of the easy magnetization axis of the magnet material particles in at least the one section of the horizontal cross-section is changed to a direction which differs from the orientation direction of the first molded article. The second molded article is heated to a sintering temperature and kept at the temperature for a period of time.

公开(公告)号：US20160168425A1

公开(公告)日：2016-06-16

申请号：US14909846

申请日：2014-06-23

Applicant: NITTO DENKO CORPORATION

Inventor： Eiichi IMOTO ,  Yoshio NAKAGAWA ,  Kenichi NISHIKAWA ,  Yasunori YAMAMOTO

IPC: C09J7/02

CPC classification number: C09J7/25 ,  C08G18/5015 ,  C08G18/622 ,  C09J133/08 ,  C09J175/04 ,  C09J2201/622 ,  C09J2203/306 ,  C09J2205/114 ,  C09J2433/00 ,  C09J2475/006

Abstract: [Problem] To provide an adhesive sheet having a surface sliding property and stainproof property.[Means for solving] An adhesive sheet is one that comprises at least a substrate and an adhesive layer, a static friction coefficient of the substrate is 0.05 or more and 1.50 or less, and an absolute value of a ΔL* value of the substrate is 0.01 or more and 45.00 or less. A load at a time of 5% elongation of the substrate is preferably 1 N/cm or more and 15 N/cm or less. And a stress relaxation rate of the substrate by elongating to 10%, stopping the elongation at that state and after lapsing 600 seconds is preferably 40% or more and 100% or less.

Abstract translation: [问题]提供具有表面滑动性和防污性的粘合片。 [解决方法]粘合片是至少包含基材和粘合剂层的粘合片，基材的静摩擦系数为0.05以上且1.50以下，绝对值为 底物为0.01以上且45.00以下。 基板的5％伸长时的载荷优选为1N / cm以上且15N / cm以下。 并且通过延伸至10％，停止在该状态下和伸长600秒后的伸长率的基板的应力松弛率优选为40％以上且100％以下。