Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Panasonic Holdings Corporation

Masayoshi Imanishi

Masashi Hamabe

Toshifumi Nagino

Shouma Nishino

Yoshie Takahashi

Takao Kuromiya

Hideo Mine

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.

Composite resin molded article

A foam molded article includes a main agent resin, a filler of greater than or equal to 15% by mass and less than or equal to 80% by mass, and a foaming agent of greater than or equal to 0.01% by mass and less than or equal to 10% by mass, and a foaming ratio caused by the foaming agent is greater than or equal to 1.1 times.

Foam molded article

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.

Cellulose composite resin and method for the production thereof

A composite resin molded product for an acoustic member is a composite resin molded product for an acoustic member containing a main agent resin and fibrous fillers dispersed in the main agent resin, and a concentration of the fibrous fillers is 50% by weight or more in the composite resin molded product, and crystallinity of the main agent resin around the fibrous fillers is higher than crystallinity of the main agent resin in other parts in the composite resin molded product.

Composite resin molded product for acoustic member

A plant fiber-containing composite resin molded article contains a base resin, plant fibers, and, a dispersant, in which each of the plant fibers contains an aroma component, the base resin is a crystalline resin, and in a case where a total content of the base resin, the plant fibers, and the dispersant is 100% by mass, a content of the plant fibers is more than or equal to 50% by mass and less than or equal to 90% by mass.

Plant fiber-containing composite resin molded article with sustained release of aroma

This injection-molded article is an injection-molded article using a cellulosic fiber composite resin, including: a resin insert piece including a colorant or a cellulose fiber; a first region formed of the cellulosic fiber composite resin; and a second region formed along a weld line of the cellulosic fiber composite resin extending from the resin insert piece, in which the first region and the second region have different color tones.

Injection-molded article and method for manufacturing same

For a fiber compound resin composition, a melt-kneading process is performed together with a base resin, a dispersant, etc. without performing a pretreatment through wet dispersion for the purpose of defibration treatment and modification treatment of a fibrous filler. As a result, each fiber of the fibrous filleris 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 portionsat the end portions defibrated and increased in surface area. As a result, hydrophobization of the defibrated portionsis promoted as compared to a non-defibrated portion, so that a difference in hydrophobicity is formed in the fiber length direction of the fibrous filler. Therefore, even when the fibrous filleris added in large amount, a melt viscosity during molding may be lowered without reducing a strength of a molded article.

Fiber compound resin composition and method of manufacturing the same

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.

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Osaka, Japan

Masayoshi Imanishi