IP Library Granted Patent US 12,054,601
Granted Patent B2
US 12,054,601 · App. 16/545,182 · Granted Aug 6, 2024

Cellulose composite resin and method for the production thereof

Inventors: Masayoshi Imanishi (Osaka, JP); Toshifumi Nagino (Osaka, JP); Masashi Hamabe (Osaka, JP); Shouma Nishino (Osaka, JP)
Assignee: PANASONIC HOLDINGS CORPORATION
C08L1/02C08L21/00C08K7/02
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Quick Facts
Patent No.
US 12,054,601
App. No.
16/545,182
Granted
Aug 6, 2024
Kind
B2
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.

Claims (8)

1. A cellulose composite resin comprising:

65.5 to 72 wt % of polypropylene as a base resin;

5 to 7 wt % of maleic anhydride-modified polypropylene as a dispersing agent;

8 to 12 wt % of styrene-ethylene-butylene-styrene block copolymer (SEBS) as a natural or synthetic polymer that is elastic at room temperature; and

15 to 20 wt % of a cellulose fiber,

based on a total amount of the base resin, the cellulose fiber, the dispersing agent, and the natural or synthetic polymer in the cellulose composite resin,

wherein an α-cellulose content in the cellulose fiber is 75% by mass.

2. The cellulose composite resin according to claim 1 , further comprising a colorant.

Assignments (2)
CHANGE OF NAME Recorded May 9, 2022
From: PANASONIC CORPORATION
To: PANASONIC HOLDINGS CORPORATION
Reel/Frame 059909/0607 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 5, 2019
From: IMANISHI, MASAYOSHI; NAGINO, TOSHIFUMI; HAMABE, MASASHI; NISHINO, SHOUMA
To: PANASONIC CORPORATION
Reel/Frame 051183/0489 →