公开(公告)号：US20220208413A1

公开(公告)日：2022-06-30

申请号：US17604987

申请日：2020-04-23

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hirotaka KANAYA ,  Yosuke TAKAHASHI ,  Koji MATSUNAGA ,  Kuniaki KAWABE

IPC: H01B1/24 ,  C08L69/00 ,  C08J3/22

Abstract: The present invention addresses the problem of providing an electroconductive resin composition which combines high electrical conductivity with excellent processability. The electroconductive resin composition comprises a thermoplastic resin (A), carbon nanotubes (B) having an outer diameter of 100 nm or smaller, and an aromatic-monomer-modified polyolefin wax (C) obtained by modifying a polyolefin wax with an aromatic monomer. The composition comprises the thermoplastic resin (A), the carbon nanotubes (B), and the aromatic-monomer-modified polyolefin wax (C) in amounts of 74.9-99.4 parts by mass, 0.5-25 parts by mass, and 0.1-10 parts by mass, respectively, with respect to 100 parts by mass of the sum of the thermoplastic resin (A), the carbon nanotubes (B), and the aromatic-monomer-modified polyolefin wax (C).

公开(公告)号：US20210078901A1

公开(公告)日：2021-03-18

申请号：US16642281

申请日：2018-08-22

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hirotaka KANAYA ,  Kuniaki KAWABE ,  Yosuke TAKAHASHI ,  Koji MATSUNAGA ,  Masaya KUSUMOTO ,  Takuya TAMURA

IPC: C03C25/255 ,  C08L91/06 ,  C08L23/26 ,  C03C25/30 ,  C03C25/40 ,  D06M15/227

Abstract: The purpose of the present invention is to provide a fiber-sizing agent which when applied to an inorganic reinforcement material contained in a resin composition, can provide a molded article having excellent impact resistance and high surface gloss properties. The fiber-sizing agent according to the present invention contains a modified olefin wax (A), a polyolefin resin (B), and a silane-coupling agent (C), wherein the mass ratio (A)/(B) of the modified olefin wax (A) to the polyolefin resin (B) is in the range of 0.2-10.

公开(公告)号：US20210155833A1

公开(公告)日：2021-05-27

申请号：US17048088

申请日：2019-04-10

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hirotaka KANAYA ,  Yosuke TAKAHASHI ,  Koji MATSUNAGA ,  Kuniaki KAWABE

IPC: C09J125/08 ,  C09J125/16 ,  C09J153/02 ,  C09J11/08

Abstract: A tackifier (B) according to the present invention comprises a copolymer (C) that comprises a structural unit derived from α-methylstyrene or isopropenyltoluene and a structural unit derived from styrene, and the copolymer (C) satisfies the following (i) to (iii): (i) a content of the structural unit derived from α-methylstyrene or isopropenyltoluene is in the range of 30 to 70 mol %, (ii) a softening temperature (Tm) measured by the ring-and-ball method according to JIS K 2207 is in the range of 110° C. to 170° C., and (iii) a content of a fraction having molecular weight of not more than 350, as determine by gel permeation chromatography (GPC) and calculated from polystyrene standard, is less than 1.5 mass %.

公开(公告)号：US20200010588A1

公开(公告)日：2020-01-09

申请号：US16489257

申请日：2018-02-23

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hirotaka KANAYA ,  Kuniaki KAWABE ,  Yosuke TAKAHASHI ,  Koji MATSUNAGA

IPC: C08F210/02 ,  C08F210/06 ,  C08F210/16 ,  C08F8/46 ,  C08F255/02 ,  C08L23/30 ,  C08K3/04

Abstract: The purpose of the present invention is to provide an electroconductive resin composition that has excellent electroconductivity and high mechanical strength. The electroconductive resin composition according to the present invention comprises 75-99 parts by mass of a thermoplastic resin (A), 1-25 parts by mass of a carbon material (B), and more than 1 part by mass but not more than 10 parts by mass, per 100 parts by mass of the total amount of the thermoplastic resin (A) and the carbon material (B), of a modified polyolefin wax (C), wherein the carbon material (B) is a granular carbon material having an average grain diameter of 500 nm or less or a fibrous carbon material having an average fiber length of 1000 μm or less.

公开(公告)号：US20240270948A1

公开(公告)日：2024-08-15

申请号：US18567204

申请日：2022-06-07

Applicant: Mitsui Chemicals, Inc.

Inventor： Hirotaka KANAYA ,  Yosuke TAKAHASHI ,  Ryunosuke MURATA

IPC: C08L23/12 ,  C08F289/00 ,  C08K7/02 ,  C08L1/02 ,  C08L91/06

CPC classification number: C08L23/12 ,  C08F289/00 ,  C08K7/02 ,  C08L1/02 ,  C08L91/06 ,  C08L2205/08

Abstract: This resin composition comprises a propylene-based polymer (A), cellulose fibers (B) and a maleic-anhydride-modified polyolefin wax (C), in which the components (A), (B) and (C) are contained in amounts of 50 to 99.8 parts by mass, 0.1 to 50 parts by mass and 0.1 to 30 parts by mass, respectively, when the total amount of the components (A), (B) and (C) is 100 parts by mass. A polyolefin wax constituting the component (C) comprises an ethylene homopolymer, a copolymer of ethylene and an α-olefin having 3 to 12 carbon atoms, a propylene homopolymer, or a copolymer of propylene and ethylene or an α-olefin having 4 to 12 carbon atoms, and the component (C) satisfies the following requirements: (i) Mn is 300 to 20000; (ii) the softening point is 70 to 160° C.; (iii) the density is 830 to 1000 kg/m3; and (iv) the acid value is 30 to 200 mgKOH/g.

公开(公告)号：US20210347974A1

公开(公告)日：2021-11-11

申请号：US16479875

申请日：2018-01-23

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hirotaka KANAYA ,  Kuniaki KAWABE ,  Yosuke TAKAHASHI ,  Koji MATSUNAGA

IPC: C08L27/06

Abstract: A novel vinyl chloride resin composition having exceptional transparency is provided. This resin composition comprises 3-15 parts by mass of a rubbery impact-absorbing material (B) for which the glass transition point in differential scanning calorimetry does not exceed 0° C., and 0.1-10 parts by mass of a lubricant (C) that satisfies (i)-(iv) below, the content amounts above being indicated relative to 100 parts by mass of a vinyl chloride resin (A) having a chlorine content of 55-75 mass %. (i) The melt viscosity at 200° C. is 5-5,000 mPa·s (ii) The softening point is in the range of 60−180° C. (iii) The glass transition point (Tg) as measured in DSC is in the range of 0−100° C. (iv) A structural unit derived from at least one species selected from the group consisting of styrene, α-methylstyrene, indene, vinyl toluene, and isopropenyl toluene is contained in the molecule in an amount of 50-100 mass %

公开(公告)号：US20190077949A1

公开(公告)日：2019-03-14

申请号：US15765643

申请日：2016-10-03

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hirotaka KANAYA ,  Kuniaki KAWABE ,  Yosuke TAKAHASHI ,  Toshiyuki ITO

IPC: C08L27/06 ,  C08L21/00 ,  C08L23/08 ,  C08K5/01

CPC classification number: C08L27/06 ,  C08K5/01 ,  C08L21/00 ,  C08L23/0815 ,  C08L23/26 ,  C08L27/24 ,  C08L51/04 ,  C08L2203/18

Abstract: The purpose of the present invention is to provide: a vinyl chloride resin composition having exceptional impact resistance, processability, and heat resistance. The present invention provides: a resin composition that contains 3-15 parts by mass of a rubber-based impact-absorbing material and 0.1-10 parts by mass of a modified olefin wax per 100 parts by mass of a vinyl chloride resin. This resin composition satisfies the following requirements (I)-(III). (I) The chlorine content of the vinyl chloride resin is 55-75% by mass. (II) The glass transition temperature (Tg) in differential scanning calorimetry (DSC) of the rubber-based impact-absorbing material (B) is 0° C. or lower. (III) The modified olefin wax contains at least one polar group selected from halogens and carboxylic acid derivatives, and the polar group content is within the range of 0.1-50% by mass.