Sony Corporation

Mitsubishi Plastics, Inc.

Yuko Fujihira

Hiroyuki Mori

Tsutomu Noguchi

Shinichiro Yamada

Jun Takagi

Kazuya Tanaka

Ritsuko Inoue

Kazuki Satake

Miyuki Kamei

Yasuhito Inagaki

Masaru Uryu

Takeshi Horie

Kunihiko Tokura

Noritaka Sato

Akihiro Ohashi

Yukio Kato

Kazuya; Tanaka

Jun; Takagi

Miki; Nishida

To obtain injection molded objects having biodegradability and excellent flame retardance and mechanical strength, the injection molded object includes a lactic acid based resin; and a metal hydroxide in a ratio of 5 to 40 mass parts per 100 mass parts of the lactic acid based resin. The metal hydroxide is surface-treated, and NaO (w-NaO) present on a surface of grains of the metal hydroxide is 0.1 mass % or less based on the total mass of the metal hydroxide. Preferably, the injection molded object contains an aliphatic polyester other than the lactic acid based resin or an aromatic-aliphatic polyester in a ratio of 20 to 80 mass parts per 100 mass parts of the lactic acid based resin.

Polylactic acid resin article comprising grains of metal-hydroxide particles

Disclosed is a biodegradable resin composition containing at least one biodegradable organic high molecular compound, a flame retardant additive containing a phosphorus-containing compound, and a hydrolysis suppressing agent suppressing the hydrolysis of the at least one biodegradable organic high molecular compound. An aliphatic polyester resin is polylactic acid, polycaprolactone, polyhydroxy lactic acid, polyhydroxy valeric acid, polyethylene succinate, polybutylene succinate, polybutylene adipate, polymalic acid, polyesters synthesized by fermentation, or a copolymer containing at least one of them. A polysaccharide is cellulose, starch, chitin, chitosan, dextrane, a derivative of at least one of them, or a copolymer containing at least one of them.

Resin composition, molded product from resin composition and method for preparing resin composition

By molding a biodegradable plastic material which is treated with a compound reactive to the active hydrogen in the biodegradable plastic material, a biodegradable plastic material and molding having long-term reliability are obtained.

Polyester molding for use with a casing

A resin composition includes a polyester capable of forming a crystal structure, at least one member selected from uracil and a uracil derivative used as a nucleating agent. A resin molding obtained from the composition is also provided.

Resin composition and molded product obtained therefrom

A material for acoustic apparatus housing, which is advantageous not only in that it prevents the resin from suffering corrosion and is unlikely to impose a burden on the environment, but also in that it has excellent performance as an acoustic apparatus housing. A material for acoustic apparatus housing, characterized in that it comprises a biodegradable polymer compound, an inorganic material, and a hydrolysis inhibitor.

Biodegradable material for audio systems

In order to provide a resin composition containing a lactic acid resin, and a molded article obtained from this resin composition which impart flame retardance to the resin composition and suppress a reduction in the molecular weight, use is made of a flame-retardant resin composition which contains a resin composition of which the major component is a lactic acid resin, and a surface-treated metallic hydroxide, wherein the surface-treated metallic hydroxide is added by 50-150 parts by mass per 100 parts by mass of the lactic acid resin.

Flame retardant resin composition and flame-retardant injection-molding

An appliance comprising a housing-case, a main unit of such appliance and an optional structural member, wherein at least portions of the housing-case and the structural member are made of biodegradable material containing polylactic acid as a major component is provided. Such appliance can achieve durability sufficient for the practical use without causing environmental impact if the housing-case and structural member thereof are disposed as they are.

Electronic appliance having housing-case made of biodegradable material, and container made of biodegradable material

To provide a plastic material suitable for preservation of the environment and a method for producing the same by adding organic or inorganic sludge to a resin derived from waste plastics to form a flame-retarded resin, an antistatic resin, or a biodegradable resin so that the electrical and physical properties of the resin are improved and sludge and waste plastics are effectively utilized.

Additive for resin, additive-containing resin, and method for producing the same

An appliance includes a housing-case, a main unit of such appliance and an optional structural member, wherein at least portions of the housing-case and the structural member are made of biodegradable material containing polylactic acid as a major component is provided. Such appliance can achieve durability sufficient for the practical use without causing environmental impact if the housing-case and structural member thereof are disposed as they are.

Growing community of inventors

Kanagawa, Japan

Yuko Fujihira