公开(公告)号：US20240300224A1

公开(公告)日：2024-09-12

申请号：US18269098

申请日：2021-12-24

Applicant: OJI HOLDINGS CORPORATION

Inventor： Hayato FUSHIMI

IPC: B32B27/10 ,  B32B7/12 ,  B32B27/30 ,  B32B27/36 ,  B32B37/12

CPC classification number: B32B27/10 ,  B32B7/12 ,  B32B27/308 ,  B32B27/365 ,  B32B37/12 ,  B32B2250/40 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2260/028 ,  B32B2260/046 ,  B32B2270/00 ,  B32B2307/31 ,  B32B2307/414 ,  B32B2307/54 ,  B32B2307/702 ,  B32B2307/718 ,  B32B2307/7376 ,  B32B2317/12 ,  B32B2369/00

Abstract: It is an object of the present invention to provide a laminate having both a high elastic modulus and a low linear thermal expansion coefficient, and also having excellent design and durability. The present invention relates to a laminate having a fiber layer comprising cellulose fibers with a fiber width of 1000 nm or less, an adhesive layer, and a resin layer in this order, wherein the resin layer comprises an amorphous resin, and the adhesive layer comprises a polymer, and the glass transition temperature of the polymer is lower than 170° C.

公开(公告)号：US11945884B2

公开(公告)日：2024-04-02

申请号：US17285725

申请日：2019-10-16

Applicant: OJI HOLDINGS CORPORATION

Inventor： Akihiro Tanaka ,  Hayato Fushimi

IPC: C08B5/00 ,  C08L1/16 ,  C09D101/16

CPC classification number: C08B5/00 ,  C08L1/16 ,  C09D101/16

Abstract: An object of the present invention is to provide ultrafine fibrous cellulose capable of exhibiting excellent coating suitability when added to paint. The present invention relates to fibrous cellulose having a fiber width of 1,000 nm or less, in which, when the fibrous cellulose is dispersed in water to form a dispersion liquid having a viscosity of 2,500 mPa·s at 23° C., and the dispersion liquid is stirred under predetermined stirring conditions, a viscosity change rate falls within ±50%, calculated by the following formula: viscosity change rate (%)=(viscosity after stirring−viscosity before stirring)/viscosity before stirring×100.

公开(公告)号：US20240093016A1

公开(公告)日：2024-03-21

申请号：US17767505

申请日：2020-10-07

Applicant: Oji Holdings Corporation

Inventor： Takumi SUEI ,  Kazuo IKEDA ,  Akihiro KAKEHI

IPC: C08L25/06 ,  C08J5/18 ,  H01G4/06

CPC classification number: C08L25/06 ,  C08J5/18 ,  H01G4/06 ,  C08J2325/06 ,  C08J2453/02 ,  C08J2471/12 ,  C08L2205/03 ,  H01G4/32

Abstract: Provided is a technique of obtaining films with higher dielectric breakdown strength at high temperatures and folding resistance. A resin composition comprises (1) a syndiotactic polystyrene resin, (2) a polyphenylene ether resin, and (3) at least one member selected from the group consisting of styrene-based thermoplastic elastomers and atactic polystyrene resins, wherein the content of the polyphenylene ether resin in the resin composition is 6 mass % or more.

公开(公告)号：US11926730B2

公开(公告)日：2024-03-12

申请号：US18301895

申请日：2023-04-17

Applicant: Oji Holdings Corporation

Inventor： Tatsuji Ishida ,  Yoshimune Okuyama ,  Masahiro Nakata ,  Tadakazu Ishiwata

IPC: C08L23/12 ,  C08J5/18 ,  H01G4/14 ,  H01G4/32 ,  C23C14/20

CPC classification number: C08L23/12 ,  C08J5/18 ,  H01G4/14 ,  H01G4/32 ,  C08J2323/12 ,  C08J2423/12 ,  C23C14/20

Abstract: A polypropylene film which is capable of suppressing blocking in a rolled polypropylene film. The polypropylene film has a first surface and a second surface, contains a polypropylene resin as a main component, and is configured such that: the Svk value (SvkA) of the first surface is 0.005 μm or more and 0.030 μm or less; the Spk value (SpkA) of the first surface is more than 0.035 μm and 0.080 μm or less; the Svk value (SvkB) of the second surface is 0.005 μm or more and 0.030 μm or less; and the Spk value (SpkB) of the second surface is 0.015 μm or more and 0.035 μm or less.

公开(公告)号：US20230391126A1

公开(公告)日：2023-12-07

申请号：US18032509

申请日：2021-10-19

Applicant: Oji Holdings Corporation

Inventor： Takashi TAKEMURA ,  Naonobu SUGIYAMA ,  Daiki WATANABE

IPC: B41M5/333 ,  B41M5/323 ,  B41M5/337 ,  B41M5/40 ,  B41M5/41

CPC classification number: B41M5/3333 ,  B41M5/323 ,  B41M5/3377 ,  B41M5/40 ,  B41M5/41

Abstract: Disclosed is a heat-sensitive recording material comprising an undercoat layer and a heat-sensitive recording layer in this order on a support,



the undercoat layer containing hollow particles, a binder, and an inorganic pigment I,
the heat-sensitive recording layer containing a leuco dye, a developer, and an inorganic pigment II, and
the heat-sensitive recording layer containing an N,N′-diarylurea-based compound represented by the following formula (1):










wherein R2s may be the same or different, and each represents C1-12 alkyl, C7-12 aralkyl, or C6-12 aryl, and the aralkyl and the aryl may be each substituted with C1-12 alkyl, C1-12 alkoxy, C6-12 aryl, or halogen; A1s may be the same or different, and each represents hydrogen or C1-4 alkyl, as the developer, and a pigment with an oil absorption of 130 ml/100 g or less as the inorganic pigment II.

公开(公告)号：US11702532B2

公开(公告)日：2023-07-18

申请号：US16952955

申请日：2020-11-19

Applicant: Oji Holdings Corporation

Inventor： Go Banzashi ,  Hiroyuki Nagatani ,  Shino Iwai

IPC: C08L1/02 ,  D21H11/18 ,  D21H11/20 ,  C08J3/02

CPC classification number: C08L1/02 ,  C08J3/02 ,  D21H11/18 ,  D21H11/20 ,  C08J2301/02

Abstract: A microfibrous cellulose aggregate containing microfibrous cellulose having an average fiber width of 2 nm to 50 nm and a liquid compound including at least one of water or an organic solvent. The content of the microfibrous cellulose is from 6 mass % to 80 mass % per the mass of the entire microfibrous cellulose aggregate, and the content of the liquid compound is at least 15 mass % per the mass of the entire microfibrous cellulose aggregate.

公开(公告)号：US11584842B2

公开(公告)日：2023-02-21

申请号：US16764674

申请日：2018-11-16

Applicant: OJI HOLDINGS CORPORATION

Inventor： Mengchen Zhao ,  Yuichi Noguchi ,  Yusuke Todoroki ,  Ikue Sugiyama ,  Tomoki Watanabe

IPC: C08L1/02 ,  C08L27/06 ,  C08L27/16 ,  C08L29/04 ,  C08L33/08 ,  B82Y30/00 ,  C08J5/18

Abstract: It is an object of the present invention to provide a resin composite comprising ultrafine cellulose fibers, in which deterioration of a resin component is suppressed. The present invention relates to a cellulose fiber-containing resin composition comprising cellulose fibers with a fiber width of 1000 nm or less having phosphoric acid groups or phosphoric acid group-derived substituents, and a resin, wherein the counterions of the phosphoric acid groups or phosphoric acid group-derived substituents are organic onium ions, and the conjugate bases of the organic onium ions have a pKb value of 1.0 or more.

公开(公告)号：US11447915B2

公开(公告)日：2022-09-20

申请号：US16338255

申请日：2017-09-29

Applicant: OJI HOLDINGS CORPORATION

Inventor： Mengchen Zhao ,  Yuichi Noguchi ,  Ikue Homma ,  Yusuke Todoroki

IPC: D21H11/20 ,  D21C9/10 ,  D21H11/18 ,  D21C9/00

Abstract: It is an object of the present invention to optimize a bleaching process in a step of producing phosphorylated cellulose fibers. The present invention relates to a pulp comprising cellulose fibers having 0.5 mmol/g or more of phosphoric acid groups or phosphoric acid group-derived substituents, wherein when the pulp is processed into a sheet and four sheets are laminated on one another, the ISO whiteness of the laminate is 82% or more. Moreover, when the pulp of the present invention is processed into a sheet and four sheets are then laminated on one another, the b* value of the obtained laminate according to the L*a*b* color system is 5.5 or less.

公开(公告)号：US11426763B2

公开(公告)日：2022-08-30

申请号：US16071267

申请日：2017-01-13

Applicant: OJI HOLDINGS CORPORATION

Inventor： Hayato Fushimi ,  Hirokazu Sunagawa

IPC: D21F11/04 ,  B05D7/24 ,  C08J7/043 ,  C08J7/056 ,  D21H11/18 ,  D21H19/16 ,  D21H19/20 ,  D21H19/24

Abstract: An object of the present invention is to provide a laminate having a fiber layer comprising ultrafine cellulose fibers and a resin layer, wherein the two layers have more excellent adhesion properties. The present invention relates to a laminate having at least one fiber layer comprising cellulose fibers with a fiber width of 1000 nm or less, and at least one resin layer that is contacted with one surface of the fiber layer, wherein the resin layer has an adhesion aid.

公开(公告)号：US20220098798A1

公开(公告)日：2022-03-31

申请号：US17418541

申请日：2019-12-25

Applicant: OJI HOLDINGS CORPORATION

Inventor： Tomoki WATANABE

IPC: D21J3/12 ,  D21H11/20 ,  D21C9/00

Abstract: The present invention is intended to enhance the transparency of a composition obtained using ultrafine cellulose fibers having phosphorous acid groups, while suppressing the yellowing of the ultrafine cellulose fibers. The present invention relates to cellulose fibers having a fiber width of 1000 nm or less and having a phosphorus oxoacid group or a phosphorus oxoacid group-derived substituent, wherein when a first amount of dissociated acid in the cellulose fibers is set to be A1 and a total amount of dissociated acid in the cellulose fibers is set to be A2, A1 is 1.35 mmol/g or more, and the value of A1/A2 is 0.51 or more, and when a sheet is formed under a predetermined condition, the YI value of the sheet is 6.0 or less.