Patent
Representative example１
【MOLDED ARTICLE OF COMPOSITE RESIN CONTAINING FIBERS
Appl. No.: 16/814,648
Filed: Mar. 10, 2020
Applicant: Panasonic Holdings Corporation, Osaka (JP)
Inventors: Toshifumi Nagino, Osaka (JP); Masashi Hamabe, Osaka (JP)
Patent No.: US 11,660,791 B2
Date of Patent: May 30, 2023
In a method producing a molded article of a composite resin containing base resin and fibers, the composite resin containing a fibrous filler in the base resin and the fibrous filler including natural fibers with a fibrillated part on each end of the fibrous filler in a fiber length direction, the base resin and the fibrous filler are charged into a melt-kneading device. The base resin is melted and the molten base resin and the fibrous filler are kneaded in the melt-kneading device, thereby fibrillating only the ends of the fibrous filler. The obtained composite resin is discharged from the melt-kneading device and formed into a pellet shape, with the molded article of the composite resin produced by molding the pellets.
Representative example２
MOLEDE ARTICLE AND MOLDING METHOD THEREOF
Appl. No.: 15/842,337
Filed: Dec. 14, 2017
Applicant: Panasonic Holdings Corporation, Osaka (JP)
Inventors: Yuki Mita, Nara (JP); Shouma Nishino, Osaka(JP); Hideo Mine, Nara(JP); Masashi Hamabe, Osaka (JP); Toshifumi Nagino, Osaka (JP);
Patent No.: US 10,596,737 B2
Date of Patent: Mar. 24, 2020
A molded article 1 is made of a resin material 3 containing cellulose fibers 2. The molded article 1 has a surface portion 4 that is in a range satisfying T F≦0.1×T where T is the thickness of the molded article 1 and T F is a distance from the surface of the molded article 1, and the molded article 1 satisfies D F≧1.1×D where D is an average cellulose concentration of the overall molded article 1 and D F is an average cellulose concentration of the surface portion 4. Thus, the molded article suppresses an increase in bending modulus while considerably improving a tensile modulus.
Representative example３
COMPOSITE RESIN MOLDED ARTICLE
Appl. No.: 16/184,071
Filed: Nov. 8, 2018
Applicant: Panasonic Holdings Corporation, Osaka (JP)
Inventors: Masashi Hamabe, Osaka (JP); Toshifumi Nagino, Osaka (JP); Takao Kuromiya, Osaka(JP); Masayoshi Imanishi, Osaka(JP); Shouma Nishino, Osaka(JP);
Patent No.: US 10,584,248 B2
Date of Patent: Mar. 10, 2020
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.
Patent List
| No. | Patent Number | Title of Invention | Date of Patent | Remarks |
| 1 | 11660791 | MOLDED ARTICLE OF COMPOSITE RESIN CONTAINING FIBERS |
(2023.05.30) | Registered JP/CN |
| 2 | 10596737 | MOLEDE ARTICLE AND MOLDING METHOD THEREOF |
(2020.03.24) | Registered JP/CN/DE |
| 3 | 10584248 | COMPOSITE RESIN MOLDED ARTICLE |
(2020.03.10) | Registered JP/CN |
| 4 | 10654201 | COMPOSITE RESIN MOLDED BODY, MANUFACTURING METHOD THEREOF, AND CASING MEMBER USING SAME |
(2020.05.19) | Registered JP/CN/DE |
| 5 | 10822482 | COMPOSITE RESIN COMPOSITION |
(2022.11.03) | Registered JP/CN/DE |
| 6 | 11168202 | FIBER COMPOUND RESIN COMPOSITON AND METHOD OF MANUFACTURING THE SAME |
(2021.11.09) | Registered JP/CN/DE |
| 7 | 11541583 | INJECTION-MOLDED ARTICLE AND METHOD FOR MANUFACTURING SAME |
(2023.01.03) | Registered JP/CN |
| 8 | 11725092 | Foam molded article | (2023.08.15) | Registered JP |
| 9 |
11891500 |
Composite resin molded article |
(2024.02.06) |
Registered JP/CN/DE |