公开(公告)号：US20190284367A1

公开(公告)日：2019-09-19

申请号：US16254814

申请日：2019-01-23

Applicant: Panasonic Corporation

Inventor： Toshifumi NAGINO ,  Masashi HAMABE ,  Masayoshi IMANISHI

IPC: C08L1/02 ,  C08L23/12

Abstract: For a fiber compound resin composition, a melt-kneading process is performed together with a base resin 1, a dispersant, etc. without performing a pretreatment through wet dispersion for the purpose of defibration treatment and modification treatment of a fibrous filler 2. As a result, each fiber of the fibrous filler 2 is defibrated from end portions in a fiber length direction, while a dispersant component put in at the same time is more selectively adsorbed to defibrated portions 3 at the end portions defibrated and increased in surface area. As a result, hydrophobization of the defibrated portions 3 is promoted as compared to a non-defibrated portion 4, so that a difference in hydrophobicity is formed in the fiber length direction of the fibrous filler 2. Therefore, even when the fibrous filler 2 is added in large amount, a melt viscosity during molding may be lowered without reducing a strength of a molded article.

公开(公告)号：US20180201770A1

公开(公告)日：2018-07-19

申请号：US15817879

申请日：2017-11-20

Applicant: PANASONIC CORPORATION

Inventor： Masashi HAMABE ,  Toshifumi NAGINO

IPC: C08L23/12

CPC classification number: C08L23/12 ,  C08J5/045 ,  C08J2323/02 ,  C08J2323/12

Abstract: Provided is a composite resin composition to be used as a material for a molded article produced by a molding machine. The composite resin composition includes a main ingredient resin 1 and a fibrous filler 2, and the fiber length direction end of the fibrous filler 2 is defibrated. The length of the defibrated portion 3 is 5% or more and 50% or less of the fiber length of the entire fibrous filler 2. The fiber diameter in the defibrated portion 3 of the fibrous filler 2 is 1/1000 or more and 1/10 or less the fiber diameter in the undefibrated portion. The modulus of elasticity of the fibrous filler 2 is higher than the modulus of elasticity of the main ingredient resin 1, and the difference between these moduli of elasticity is within 20 GPa.

公开(公告)号：US20200062940A1

公开(公告)日：2020-02-27

申请号：US16532675

申请日：2019-08-06

Applicant: Panasonic Corporation

Inventor： Masashi HAMABE ,  Toshifumi NAGINO ,  Masayoshi IMANISHI ,  Shouma NISHINO

IPC: C08L23/12

Abstract: A composite resin molded article includes: a base resin; and fillers dispersed in the base resin, wherein the fillers include fibrous fillers and particulate fillers having aspect ratios lower than aspect ratios of the fibrous fillers.

公开(公告)号：US20200062930A1

公开(公告)日：2020-02-27

申请号：US16545182

申请日：2019-08-20

Applicant: Panasonic Corporation

Inventor： Masayoshi IMANISHI ,  Toshifumi NAGINO ,  Masashi HAMABE ,  Shouma NISHINO

IPC: C08L1/02 ,  C08L21/00

Abstract: A cellulose composite resin includes a base resin, a cellulose fiber, a dispersing agent, and a rubber-containing polymer, and an α-cellulose content in the cellulose fiber is 50% by mass or more and less than 80% by mass.

公开(公告)号：US20190144675A1

公开(公告)日：2019-05-16

申请号：US16184071

申请日：2018-11-08

Applicant: Panasonic Corporation

Inventor： Masashi HAMABE ,  Toshifumi NAGINO ,  Takao KUROMIYA ,  Masayoshi IMANISHI ,  Shouma NISHINO

IPC: C08L97/02 ,  B29B7/90 ,  B29B9/14 ,  B29C45/00

CPC classification number: C08L97/02 ,  B29B7/90 ,  B29B9/14 ,  B29C45/0001 ,  B29C45/0005 ,  B29K2023/12 ,  B29K2311/12 ,  C08J5/045 ,  C08J2323/12 ,  C08K7/02 ,  C08K2201/003 ,  C08K2201/004 ,  C08L23/12

Abstract: A composite resin molded article including: a base resin; and a fibrous filler, wherein the fibrous filler is bent between one end side thereof and another end side thereof, and wherein the angle of the bending is 90 degrees or larger.