Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Panasonic Holdings Corporation

Masashi Hamabe

Toshifumi Nagino

Masayoshi Imanishi

Shouma Nishino

Takao Kuromiya

Masateru Mikami

Hideo Mine

Yoshie Takahashi

Takashi Tsuruta

Yuki Mita

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

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.

Molded article of composite resin containing fibers

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

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 resinand a fibrous filler, and the fiber length direction end of the fibrous filleris defibrated. The length of the defibrated portionis 5% or more and 50% or less of the fiber length of the entire fibrous filler. The fiber diameter in the defibrated portionof the fibrous filleris 1/1000 or more and 1/10 or less the fiber diameter in the undefibrated portion. The modulus of elasticity of the fibrous filleris higher than the modulus of elasticity of the main ingredient resin, and the difference between these moduli of elasticity is within 20 GPa.

Composite resin composition

A composite resin molded body includes a base compound resin and a molten-kneaded mixture which contains an organic fibrous filler, and a dispersing agent. In the composite resin molded body, a content of the organic fibrous filler is at least 5 mass % and at most 70 mass %, and a proportion T of the organic fibrous filler carbonized in the composite resin molded body is equal to or less than 0.1.

Composite resin molded body, manufacturing method thereof, and casing member using same

A molded articleis made of a resin materialcontaining cellulose fibers. The molded articlehas a surface portionthat is in a range satisfying T&#x2264;0.1&#xd7;T where T is the thickness of the molded articleand Tis a distance from the surface of the molded article, and the molded articlesatisfies D&#x2265;1.1&#xd7;D where D is an average cellulose concentration of the overall molded articleand Dis an average cellulose concentration of the surface portion. Thus, the molded article suppresses an increase in bending modulus while considerably improving a tensile modulus.

Molded article and molding method thereof

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.

When a coating material is rolled between rolls to generate a a coating film, and the coating film is transferred onto the coating object, at first, a residual coating material layer based on a residual coating material is formed on each of the surfaces of the rolls, and supply of the coating material and transfer of the coating film are carried out in a state where the residual coating material layer is retained on each of the surfaces of the rolls, thereby suppressing abrasions between the rolls and the coating material.

Growing community of inventors

Osaka, Japan

Masashi Hamabe