公开(公告)号：US11667763B2

公开(公告)日：2023-06-06

申请号：US16641134

申请日：2017-08-23

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Jirou Hiroishi ,  Hidekazu Hara ,  Yuka Sawada ,  Masami Tazuke ,  Toshihiro Suzuki ,  Shingo Mitsugi

IPC: C08J5/04 ,  C08G63/183 ,  C08J5/18 ,  C08J11/06 ,  C08K7/02 ,  C08L1/02 ,  C08L23/06 ,  C08L23/12 ,  C08L77/00

CPC classification number: C08J5/04 ,  C08G63/183 ,  C08J5/18 ,  C08J11/06 ,  C08K7/02 ,  C08L1/02 ,  C08L23/06 ,  C08L23/12 ,  C08L77/00 ,  C08K2201/004 ,  C08L2203/16 ,  C08L2205/03 ,  C08L2205/16 ,  C08L2207/062 ,  C08L2207/066 ,  C08L2207/20

Abstract: A cellulose fiber dispersion polyethylene resin composite material formed by dispersing a cellulose fiber into a polyethylene resin, in which a proportion of the above-described cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin and the cellulose fiber, and the polyethylene resin satisfies a relationship: 1.7>half-width (Log(MH/ML))>1.0 in a molecular weight pattern obtained by gel permeation chromatography measurement, and a formed body and a pellet using the same, a production method therefor, and a recycling method for the cellulose fiber adhesion polyethylene thin film piece.

公开(公告)号：US11613110B2

公开(公告)日：2023-03-28

申请号：US17226257

申请日：2021-04-09

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masami Tazuke ,  Toshihiro Suzuki ,  Hidekazu Hara ,  Jirou Hiroishi ,  Jae Kyung Kim ,  Masato Ikeuchi ,  Jiro Sakato

IPC: B32B27/20 ,  B29B7/90 ,  B29C49/00 ,  B29C49/04 ,  B29C49/22 ,  B32B1/08 ,  B32B3/28 ,  B32B5/18 ,  B32B27/08 ,  B32B27/32 ,  C08K3/04 ,  C08L23/06 ,  F16L11/08 ,  F16L11/112 ,  B29K401/00 ,  B29K505/02 ,  B29L23/00

Abstract: A laminate, containing two or more polyolefin resin layers, wherein at least one polyolefin resin layer (A) contains a cellulose fiber including a cellulose fiber having a fiber length of 0.3 mm or more dispersed in the layer; a content of the cellulose fiber in the polyolefin resin layer (A) is 1% by mass or more and less than 60% by mass; and wherein a polyolefin resin layer (B) different from the polyolefin resin layer (A) is laminated in contact with the polyolefin resin layer (A).

公开(公告)号：US11597826B2

公开(公告)日：2023-03-07

申请号：US16797691

申请日：2020-02-21

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hidekazu Hara ,  Jirou Hiroishi ,  Yuka Sawada ,  Masami Tazuke ,  Toshihiro Suzuki

IPC: C08L23/12 ,  B29B7/00 ,  B29B7/16 ,  B29B7/92 ,  C08J3/215 ,  B29B9/14 ,  B29B17/04 ,  C08J3/20 ,  C08K3/08 ,  C08L1/02 ,  B29B7/10 ,  B29B9/06 ,  B29B17/02 ,  B29C70/28 ,  B29K1/00 ,  B29K23/00 ,  B29K105/26

Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the water absorption ratio satisfies the following Formula: (Water absorption ratio [%])

公开(公告)号：US11192346B2

公开(公告)日：2021-12-07

申请号：US16664181

申请日：2019-10-25

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Motoko Yoshizaki ,  Makiko Nakano ,  Yukihiro Ikura ,  Jirou Hiroishi ,  Isao Tomomatsu ,  Yousuke Kokubo ,  Yoichiro Negishi

IPC: B32B27/12 ,  B32B5/12 ,  B32B27/32 ,  B32B37/06 ,  B32B38/08 ,  C08J5/04

Abstract: A laminated body, containing a fiber-reinforced resin, in which a fiber-reinforced thermoplastic resin layer (1) containing fiber bundle of reinforcing fibers and a first thermoplastic resin, and a resin layer (2) containing a second thermoplastic resin, are alternately laminated, to form the fiber-reinforced resin, and the ratio of the indentation elastic modulus EIT-B of the first thermoplastic resin portion of the laminated body with respect to the indentation elastic modulus EIT-C of the second thermoplastic resin is 1.5 or more and 5.0 or less; a fiber-reinforced composite resin material; and a method of producing these.

公开(公告)号：US11466145B2

公开(公告)日：2022-10-11

申请号：US16797938

申请日：2020-02-21

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Jirou Hiroishi ,  Hidekazu Hara ,  Yuka Sawada ,  Masami Tazuke ,  Toshihiro Suzuki

IPC: C08L23/06 ,  C08K3/08 ,  C08K7/02 ,  C08L23/12 ,  C08L67/02 ,  C08L79/06 ,  G01N3/56 ,  C08L1/02

Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin and a cellulose fiber dispersed in the polyolefin resin, in which the composite material contains the cellulose fiber of 3 mass % or more and less than 70 mass %, and when the composite material is subjected to the abrasion test according to ISO 6722 under the following test conditions, the amount of abrasion after 5,000 reciprocations satisfies the [Formula 1]: (Amount of abrasion [mm] of the cellulose-fiber-dispersing polyolefin resin composite material)

公开(公告)号：US11261318B2

公开(公告)日：2022-03-01

申请号：US16797654

申请日：2020-02-21

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yuka Sawada ,  Hidekazu Hara ,  Jirou Hiroishi ,  Masami Tazuke ,  Toshihiro Suzuki

IPC: C08L23/12 ,  B29B7/00 ,  B29B7/16 ,  C08J3/215 ,  C08L97/02 ,  B29K1/00 ,  B29K23/00 ,  B29K105/26

Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the polyolefin resin satisfies the expression: Mz/Mw≥4, which is a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw to be obtained by a gel permeation chromatography measurement; a pellet or a formed body using this composite material; and a production method for the composite material.