公开(公告)号：US10987650B2

公开(公告)日：2021-04-27

申请号：US15733236

申请日：2018-12-18

申请人： KURARAY CO., LTD.

发明人： Keita Takahashi ,  Takayuki Yoshikawa ,  Tetsuya Hanamoto ,  Hiroe Yoshinobu ,  Takayuki Yamada

IPC分类号： B01J20/20 ,  B01J20/28 ,  C02F1/28 ,  C02F101/12 ,  C02F101/32

摘要： One aspect of the present invention relates to an adsorption filter containing an activated carbon and a fibrous binder. The adsorption filter has a density of 0.400 g/ml or more, and a pore volume at a pore diameter of 1 to 20 μm is 0.60 ml/g or less as measured by mercury intrusion porosimetry.

公开(公告)号：US10984963B2

公开(公告)日：2021-04-20

申请号：US16488488

申请日：2018-02-23

申请人： KURARAY CO., LTD.

发明人： Shohei Kobayashi ,  Motomi Matsushima ,  Taketoshi Okuno ,  Hideharu Iwasaki

IPC分类号： H01G11/34 ,  C01B32/354 ,  H01G11/42 ,  H01G11/86

摘要： The present invention relates to a carbonaceous material having a specific surface area of 1,800 m2/g to 3,000 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm−1 or more according to a Raman spectrum.

公开(公告)号：US10982382B2

公开(公告)日：2021-04-20

申请号：US15558331

申请日：2016-03-17

申请人： KURARAY CO., LTD.

发明人： Yasunori Murate ,  Hitoshi Nakatsuka

IPC分类号： D06N3/12 ,  D06N3/14 ,  D06N3/00 ,  D06P3/00 ,  D06P3/52

摘要： Disclosed is a napped artificial leather dyed with a cationic dye, including: a non-woven fabric of a cationic dyeable polyester fiber having a fineness of 0.07 to 0.9 dtex; and an elastic polymer provided inside the non-woven fabric, wherein the napped artificial leather has L* value≤50, a grade of color difference determined in an evaluation of color migration to PVC under a load 0.75 kg/cm at 50° C. for 16 hours, of 4 or more, a tear strength per mm of thickness of 30 N or more, and a peel strength of 3 kg/cm or more.

公开(公告)号：US10974224B2

公开(公告)日：2021-04-13

申请号：US15733219

申请日：2018-12-17

申请人： KURARAY CO., LTD.

发明人： Keita Takahashi ,  Takayuki Yoshikawa ,  Takayuki Yamada

IPC分类号： C01B31/08 ,  B01J21/18 ,  C01B32/318 ,  B01J23/44 ,  B01J35/00 ,  C01B32/30

摘要： The present invention relates to an activated carbon having an electric conductivity of 3.5 S/cm or more obtained by powder resistance measurement under a load of 12 kN and an oxygen content of 3.0% by mass or more, and a metal-carrying activated carbon using the same, and the like.

公开(公告)号：US20210087325A1

公开(公告)日：2021-03-25

申请号：US17107016

申请日：2020-11-30

申请人： KURARAY CO., LTD.

发明人： Azusa OSHITA ,  Minori TAKEGOSHI ,  Mitsuru KATO ,  Chihiro OKAMOTO ,  Shinya KATO

IPC分类号： C08G18/38 ,  B24B37/24 ,  C08G18/32 ,  C08G18/76 ,  H01L21/3105 ,  H01L21/321 ,  C08G18/08 ,  B24D3/00 ,  B24D3/34

摘要： A Schiff base-containing chain extender may be a diol having a Schiff base or a derivative thereof, as well as a polyurethane produced using the same and a modification method thereof, and a polishing layer including a polyurethane and a polishing method using the polishing layer.

公开(公告)号：US10935697B2

公开(公告)日：2021-03-02

申请号：US16486058

申请日：2018-02-09

申请人： KURARAY CO., LTD.

发明人： Toshiaki Sugawara ,  Makoto Akai ,  Dai Kataoka

IPC分类号： G02B1/04 ,  C08F293/00 ,  C08K3/22 ,  C08K5/524 ,  C08K13/02

摘要： A resin composition is provided which has high transparency, light guiding properties and luminescent properties and can guide light therethrough with little change in chromaticity. A shaped article such as an optical element including the resin composition is also provided. The resin composition includes an acrylic block copolymer (A) and a light diffusing agent (B), wherein the acrylic block copolymer (A) has at least one structure in which polymer blocks (a1) based on methacrylic acid ester units are bonded to both ends of a polymer block (a2) based on acrylic acid ester units, and has a weight average molecular weight of 10,000 to 150,000 and a tensile elastic modulus of 1 to 1,500 MPa, the light diffusing agent (B) is rutile titanium oxide having an average particle size of 0.5 to 2.0 μm, and the content of the light diffusing agent (B) is 0.5 to 10 ppm (on mass basis) based on the acrylic block copolymer (A).

公开(公告)号：US20210054113A1

公开(公告)日：2021-02-25

申请号：US16965481

申请日：2019-01-28

申请人： KURARAY CO., LTD.

发明人： Takuro NIIMURA ,  Masashi AKARI ,  Hiroshi OZAWA

IPC分类号： C08F6/22 ,  C08F265/06 ,  C08F220/18 ,  C08F2/24

摘要： The present invention provides a multilayered acrylic polymer coagulate characterized in that the coagulate has a bulk density of 0.3 to 0.6 g/cm3 and a median diameter of 50 to 400 μm and contains particles having a particle diameter of 75 or less in a proportion of 50% or less, and the amount of alkali metal and alkaline earth metal contained in the coagulate satisfies the following formula (1): Σ(N/a)×(120−Tg)≤100   (1) wherein N represents the amount of alkali metal and alkaline earth metal contained in the coagulate (mmol/kg); Tg represents the glass transition temperature (° C.) of the acetone-soluble matter of the coagulate; and a represents the valency of the alkali metal and alkaline earth metal contained in the coagulate.

公开(公告)号：US10913843B2

公开(公告)日：2021-02-09

申请号：US16336369

申请日：2017-09-26

申请人： KURARAY CO., LTD.

发明人： Yasushi Senda ,  Shinya Oshita ,  Yoshiaki Asanuma

IPC分类号： C08L53/02 ,  B32B17/10 ,  C08F297/04 ,  G10K11/162

摘要： Provided are a resin composition, a pellet, a veil, a vibration damping material, a sound insulator, and an intermediate film for laminated glass, each of which is much more excellent in damping properties. Specifically, the resin composition is a resin composition containing the following block copolymer or hydrogenation product thereof (X); and a tackifier resin (Y) having a glass transition temperature of −50 to 45° C., wherein when a glass transition temperature of a polymer block (B) of the block copolymer or hydrogenation product thereof (X) is designated as Tg(X), and a glass transition temperature of the tackifier resin (Y) is designated as Tg(Y), an absolute value of a difference between Tg(X) and Tg(Y) is 50° C. or lower, the block copolymer or hydrogenation product thereof (X) being a block copolymer or a hydrogenation product thereof having a polymer block (A) containing more than 70 mol % of a structural unit derived from an aromatic vinyl compound and a polymer block (B) containing 30 mol % or more of a structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene, and the content of the polymer block (A) in the block copolymer being 25% by mass or less.

公开(公告)号：US20210020385A1

公开(公告)日：2021-01-21

申请号：US16948816

申请日：2020-10-01

申请人： KURARAY CO., LTD.

发明人： Yumika NISHITA ,  Shushi Nishimura ,  Yoshifumi Egawa ,  Kiyoto Otsuka

IPC分类号： H01G11/34 ,  H01G11/24 ,  H01G11/44 ,  H01G11/86 ,  C01B32/30

摘要： A carbonaceous material for electric double-layer capacitors that is based on a plant-derived carbon precursor, in which carbonaceous material: a BET specific surface area is 1,900 to 2,500 m2/g; an average pore size is 2.2 to 2.6 nm as determined by a nitrogen adsorption method; a volume of micropores having a pore size of 2 nm or smaller is 0.84 to 1.30 cm3/g as determined by the MP method; a ratio of a volume of micropores having a pore size of 1 to 2 nm with respect to the volume of the micropores having a pore size of 2 nm or smaller is 25 to 50% as determined by the MP method; and a volume of mesopores having a pore size of 2 to 50 nm is 0.16 to 0.4 cm3/g as determined by the BJH method; and a method of producing same.

公开(公告)号：US20210017320A1

公开(公告)日：2021-01-21

申请号：US16978188

申请日：2019-03-04

申请人： KURARAY CO., LTD.

发明人： Satomi OHTA ,  Hiroshi KANBARA ,  Daisuke KODA

IPC分类号： C08F297/02 ,  C08L9/06 ,  B60C1/00

摘要： The invention provides a modified liquid diene polymer that allows a rubber composition to give a crosslinked product which contains a filler in a dispersed state ideal for attaining enhanced properties and which also exhibits excellent properties such as wet grip and abrasion resistance. The invention also provides a rubber composition including the modified liquid diene polymer, a crosslinked product thereof, and a tire which includes a portion including the composition or the crosslinked product. The modified liquid diene polymer is a product of modification, with a specific silane compound, of a liquid diene block copolymer including a polymer block (b′1) or (b″1) containing butadiene units and a polymer block (b′2) or (b″2). The modified liquid diene polymer has a functional group derived from the silane compound, and satisfies specific conditions.