Patents Assigned to Mitsui Chemicals, Inc.
  • Publication number: 20210030882
    Abstract: A bis-iminobiotin compound which has a structure that enables the easy bonding of a bis-iminobiotin moiety to a drug or a fluorescent compound and is useful for the delivery of a drug to a streptavidin-labeled substance. The bis-iminobiotin compound is represented by general formula 9. In the formula, A, D and E independently represent a spacer capable of bonding two bicyclo rings to each other, wherein E represents a structure that may be branched, each of A, D and E may have a substituent, and A, D and E may together form a cyclic structure; J represents a functional group for achieving a click reaction; G represents a spacer capable of bonding E to J; and R represents a hydrogen atom, an acetyl group, a benzyl group, a trifluoroacetyl group or a Boc group.
    Type: Application
    Filed: March 29, 2019
    Publication date: February 4, 2021
    Applicants: Mitsui Chemicals, Inc., The University of Tokyo, Savid Therapeutics Inc.
    Inventors: Tsuneji SUZUKI, Kosuke MANO, Yoshiyuki TOTANII, Yohei SHIMIZU, Akira SUGIYAMA, Masanobu TSUKAGOSHI
  • Publication number: 20210031418
    Abstract: A method for producing an injection molded article including a highly-filled fiber-reinforced resin composition includes a step of charging a first resin feedstock including a thermoplastic polymer into an injection molding machine through a first inlet port; a step of charging a second resin feedstock into the injection molding machine through a second inlet port disposed downstream of the first inlet port, the second resin feedstock including a masterbatch that includes long fibers impregnated with a resin mixture including a thermoplastic polymer and an acid-modified polyolefin; a step of melt-kneading the first resin feedstock and the second resin feedstock together in the injection molding machine to give a fiber-reinforced resin composition melt; and a step of injection molding the fiber-reinforced resin composition melt in a mold, the first resin feedstock being charged intermittently or continuously from the start to the end of the charging of the second resin feedstock.
    Type: Application
    Filed: March 27, 2019
    Publication date: February 4, 2021
    Applicants: MITSUI CHEMICALS, INC, UBE MACHINERY CORPORATION, LTD.
    Inventors: Toshio IWATA, Tsubasa TORIGOE, Daisuke FUJITA
  • Publication number: 20210032397
    Abstract: A 4-methyl-1-pentene polymer particle (X) which satisfies the following requirements (X-a), (X-b) and (X-c): (X-a) being composed of a 4-methyl-1-pentene polymer which has a content of a constitutional unit derived from 4-methyl-1-pentene being 30.0 to 99.7% by mol, and a content of a constitutional unit derived from at least one olefin selected from ethylene and an ?-olefin having 3 to 20 carbon atoms (except for 4-methyl-1-pentene) being 0.3 to 70.0% by mol; (X-b) having, when measured in a cross fractionation chromatograph apparatus (CFC) using an infrared spectrophotometer as a detector part, at least one peak A of an amount of a component eluted present in the range of 100 to 140° C., and at least one peak B of an amount of a component eluted present at lower than 100° C.; and (X-c) having a meso diad fraction (m) measured by 13C-NMR falling within the range of 95.0 to 100%.
    Type: Application
    Filed: April 9, 2019
    Publication date: February 4, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masakazu TANAKA, Toyoaki SASAKI, Tomoaki MATSUGI, Sadahiko MATSUURA, Naoto MATSUKAWA, Masatoshi CHINAKA
  • Publication number: 20210023260
    Abstract: The application discloses a composition for hard tissue repair comprising a monomer (A), a polymer powder (B) and a polymerization initiator (C), wherein the polymer powder (B) comprises a polymer powder (B-x) having an aspect ratio of 1.10 or more, and the cumulative ratio of powder particles having aspect ratios of 1.00 or more and less than 1.10 in all of the powder particles contained in the composition for hard tissue repair is 75 cumulative % or less, as well as, a kit for hard tissue repair comprising three or more members, in which each of the components of the monomer (A), the polymer powder (B) and the polymerization initiator (C) contained in this composition for hard tissue repair are divided and contained in the members in an optional combination.
    Type: Application
    Filed: March 5, 2019
    Publication date: January 28, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shinya AOKI, Jingjing YANG, Aya NAKAGAWA, Kengo GOTO, Takashi MIURA, Ayako BANDO
  • Publication number: 20210024791
    Abstract: The present invention provides a mask adhesive that plastically deforms easily, no adhesive residue remains after peeling from the mask, ease of handling is excellent, and haze on a pellicle film is unlikely to be increased. A mask adhesive resolving this problem contains a thermoplastic elastomer (A) for which the temperature at which the loss tangent measured at a frequency of 1 Hz is at a maximum value is ?20 to 30° C., a tackifier resin (B), and a process oil (C). The total of the proportion (% CP) of paraffin carbon and the proportion (% CN) of naphthene carbon in the process oil (C) is 50% or more. The temperature of the mask adhesive at which the loss tangent measured at a frequency of 1 Hz is at a maximum value is ?10 to 30° C., and the sulfur content of the mask adhesive is 300 ?g/g or less.
    Type: Application
    Filed: March 27, 2019
    Publication date: January 28, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tsuneaki BIYAJIMA, Daiki TANEICHI
  • Publication number: 20210024675
    Abstract: The optical lens of the present invention contains a molded product constituted with a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin, and a constitutional unit (C) derived from an aromatic vinyl compound represented by a specific chemical formula.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 28, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hideki WASA, Sunil Krzysztof MOORTHI, Haruka SAITO, Futoshi FUJIMURA
  • Patent number: 10899896
    Abstract: Disclosed are: a reinforcing fiber bundle with excellent mechanical property and handling property, which contains a propylene-based resin (A), a propylene-based resin (B) comprising at least a carboxylic acid salt bonded to the polymer chain, and a reinforcing fiber (C) wherein the propylene-based resin (A) comprises more than 70% by mass but not more than 100% by mass of a component (A-1) having a weight average molecular weight of 150,000 or more, the amount of the propylene-based resin (B) is 3 to 50 parts by mass per 100 parts by mass of the propylene-based resin (A), and the total content rate of the propylene-based resin (A) and the propylene-based resin (B) is 0.3 to 5% by mass in the whole reinforcing fiber bundle; and a molding material comprising the reinforcing fiber bundle and a matrix resin.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: January 26, 2021
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yasushi Mizuta, Takeharu Isaki, Masako Yoshida, Yuichi Itou
  • Patent number: 10899094
    Abstract: A method of manufacturing a plastic lens includes: a step of putting a first curable composition over a forming surface of a first mold substrate having the forming surface for forming a lens surface; a step of spreading the first curable composition over the entire forming surface by pressing the composition with a film to form a first curable composition layer and separating the film from the first mold substrate by a predetermined distance through the formed first curable composition layer; a step of covering defined surfaces; a step of injecting a second curable composition into a defined location; a step of curing the first curable composition layer and the injected second curable composition; and a step of removing to obtain a plastic lens.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: January 26, 2021
    Assignees: HOPNIC LABORATORY CO., LTD., MITSUI CHEMICALS, INC.
    Inventor: Yoshimitsu Aiiso
  • Publication number: 20210017128
    Abstract: A method for producing an organic mercapto compound or an intermediate thereof according to the present invention has a reaction step of reacting an alcohol compound including a sulfur atom with a thioamide compound having a structure in which an organic group is bonded to at least one bonding hand of a thioamide group, under acidic conditions.
    Type: Application
    Filed: March 29, 2019
    Publication date: January 21, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hironori KUBOI, Kaoru OHSHIMIZU
  • Publication number: 20210017313
    Abstract: Provided are a polymerizable composition for a dental material that can yield cured molded bodies having superior mechanical strength, a molded body obtained by curing the composition, and a dental material including the molded body. A polymerizable composition for a dental material, the polymerizable composition containing: one selected from the group consisting of allyl compound (A) and an oligomer of allyl compound (A); and (meth)acrylate compound (B).
    Type: Application
    Filed: March 28, 2019
    Publication date: January 21, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takuya MATSUMOTO, Naoyuki KAKINUMA
  • Publication number: 20210017327
    Abstract: The polymerizable composition for optical materials of the present invention includes a polyester polyol (a), a compound (b) of which light absorption characteristics vary by sensing changes in environment; and a polymerization reactive compound (c).
    Type: Application
    Filed: December 14, 2018
    Publication date: January 21, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Nigel RIBEIRO, Hongbo WANG, Yixi LIN
  • Patent number: 10895805
    Abstract: A method for producing a pellicle according to the one embodiment of the present invention produces a pellicle including a pellicle film and a pellicle frame supporting an outer peripheral portion of the pellicle film. The method includes forming the pellicle film on a substrate, and bonding a pressure-sensitive adhesive sheet, that is elastic and has a pressure-sensitive adhesive force thereof decreased upon receipt of external stimulation, to each of two surfaces of the substrate; making a notch inside a part of the substrate, the part having the pressure-sensitive adhesive sheets bonded thereto; separating a substrate outer peripheral portion outer to the notch of the substrate, in a state where the pressure-sensitive adhesive sheets are bonded to the substrate, to form a pellicle frame; and stimulating the pressure-sensitive adhesive sheets to peel off the pressure-sensitive adhesive sheets.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: January 19, 2021
    Assignees: MITSUI CHEMICALS, INC., TAZMO CO., LTD.
    Inventors: Kazuo Kohmura, Daiki Taneichi, Yosuke Ono, Hisako Ishikawa, Tsuneaki Biyajima, Yasuyuki Sato, Toshiaki Hirota
  • Patent number: 10896988
    Abstract: A laminated sheet of a two-layer sheet in which an L1 layer including 50 to 99 parts by mass of an ethylene-based polymer (E1) having a density of 0.890 to 970 kg/m3 and 1 to 50 parts by mass of a propylene-based polymer (P1) is in contact with an L2 layer including 50 to 100 parts by mass of a propylene-based polymer (P2) and 0 to 50 parts by mass of an ethylene-based elastomer (E2) having a density of equal to or more than 850 kg/m3 and less than 890 kg/m3, in which the propylene-based polymer (P1) includes a propylene-based elastomer (P1a) including a propylene-derived constitutional unit and an ethylene-derived constitutional unit and/or a constitutional unit derived from an ?-olefin having 4 to 20 carbon atoms, and having a melting point (Tm) that is lower than 120° C. or not observable; and a solar cell backsheet formed using the same.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: January 19, 2021
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Koya Yoshimoto, Kiminori Noda, Makoto Egawa, Tatsuya Oku
  • Publication number: 20210011372
    Abstract: Provided is a supporting frame in which a vent hole detachably arranging a filter and to which a pellicle film for extreme ultraviolet lithography can be attached. A support frame according to an embodiment of the present invention is a support frame for arranging a pellicle film, the support frame has a through hole being made from a hole extending along a first direction, the first direction being almost parallel to a surface direction of the pellicle film, and a hole extending along a second direction, the second direction not being parallel to the first direction; and the support frame includes a filter, the filter arranged at an inside of the through hole or at an end of the through hole, and the filter is arranged apart from the pellicle film.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Akira ISHIKAWA, Atsushi OKUBO, Yosuke ONO, Kazuo KOHMURA
  • Publication number: 20210008853
    Abstract: The present invention has an object of providing an ethylene/?-olefin/non-conjugated polyene copolymer composition excellent in the adhesive strength with a layer of a saponified ethylene/vinyl acetate copolymer; and the present invention relates to a laminate comprising a layer of a copolymer composition comprising 100 parts by mass of an ethylene/?-olefin/non-conjugated polyene copolymer (A) and one or more additives selected from the following (1) to (3), and a layer of the saponified ethylene/vinyl acetate copolymer (B). (1) 1.7 to 20 parts by mass of dicumyl peroxide and 2 to 20 parts by mass of a metal oxide; (2) 20 to 120 parts by mass of a hydrophilic fumed silica; and (3) 5 to 50 parts by mass of an ethylene/vinyl acetate copolymer (B).
    Type: Application
    Filed: March 8, 2019
    Publication date: January 14, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yoshiharu KIKUCHI, Kotaro ICHINO
  • Publication number: 20210009730
    Abstract: An object of the present invention is to provide a novel ethylene/?-olefin/non-conjugated polyene copolymer containing a certain non-conjugated polyene such as VNB as a copolymerization component, having a low long-chain branching content, excellent in cure characteristics in the case of crosslinking by using peroxide, and having good processability. The ethylene/?-olefin/non-conjugated polyene copolymer according to the present invention has constitutional units derived from ethylene (A), an ?-olefin (B) having 3 to 20 carbon atoms, and a non-conjugated polyene (C) having a total of two or more partial structures selected from the group consisting of the following general formulas (I) and (II) in a molecule, and satisfies certain requirements.
    Type: Application
    Filed: March 20, 2018
    Publication date: January 14, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kotaro ICHINO, Yoshiharu KIKUCHI, Keisuke SHISHIDO, Junpei TANAKA, Mitsunao ARINO
  • Publication number: 20210008852
    Abstract: An object of the present invention is to obtain a laminate with good adhesive strength between a nonpolar polymer such as an EPDM, an acrylic rubber (ACM), an epichlorohydrin rubber (ECO), and the like and a polymer having excellent oil resistance such as a fluorine-based rubber, and the present invention relates to a laminate including a layer (A) and a layer (B). Layer (A): a layer including one or more polymers selected from the following polymers: an ethylene/?-olefin/non-conjugated polyene copolymer, an ethylene/carboxylic acid copolymer, an acrylic rubber, and an epichlorohydrin rubber. Layer (B): a layer including one or more polymers selected from the following polymers: an acrylic rubber and a halogen-containing polymer.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 14, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yoshiharu KIKUCHI, Kotaro ICHINO
  • Publication number: 20210010041
    Abstract: Provided is a method of producing an amide compound, the method including: obtaining a reaction solution containing an amide compound by bringing a microbial cell containing nitrile hydratase, or a processed product of the microbial cell, into contact with a nitrile compound in an aqueous medium in a first reactor; and causing the obtained reaction solution containing an amide compound to react in a second reactor having a plug-flow region, in which the Reynolds number in the second reactor is controlled to from 5 to 1,000.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 14, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Maki YAMAMOTO, Yasushi KOTAKI, Tsutomu ISHIDA
  • Publication number: 20210009746
    Abstract: A polymerizable composition for an optical material includes a prepolymer which is a reaction product of a first amine compound (A1) having a weight-average molecular weight of less than 4,000, a first diol compound (B1) having a viscosity (25° C.) of equal to or less than 100 mPa·s, and a polyisocyanate compound (C); and a first polythiol compound (D1), in which the first amine compound (A1) is at least one selected from a polyetheramine and an aromatic amine, and the first polythiol compound (D1) includes a dithiol compound (d1) having two mercapto groups and a polythiol compound (d2) having equal to or more than three mercapto groups.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 14, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Akinori RYU
  • Publication number: 20210008768
    Abstract: A magnesium alloy/resin composite structure including a magnesium alloy member and a resin member integrated to the magnesium alloy member and made of a thermoplastic resin composition, in which the magnesium alloy member surface to which the resin member is not integrated is coated with a layer including a manganese atom, an oxygen atom, and a sulfur atom.
    Type: Application
    Filed: March 7, 2019
    Publication date: January 14, 2021
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Mizue KURIYAGAWA, Yoshihiko TOMITA, Hiroshi OKUMURA