Kuraray Co., Ltd.

Kenji Okuno

Kiyonobu Fujii

Tohei Moritani

Satoshi Hirofuji

Koichi Saito

Akira Kubotsu

Shunro Taniguchi

Shinichi Yokota

Hidemasa Oda

Katsunori Takamoto

Ryuhei Ueeda

Osamu Ohara

Shunji Kaneda

Kotaro Ikeda

Provided are multilayered containers comprising a layer of a composition comprising a gas barrier resin, particularly ethylene-vinyl alcohol copolymer, incorporating an inorganic powder such as mica, and a layer of a composition comprising a thermoplastic resin incorporating an inorganic powder such as mica. The containers are excellent in gas barrier properties, particularly in gas barrier properties after being retorted, while showing very little deformation during retort treatment, and further excellent in mechanical strengths.

Multilayered container

Polyester resin compositions exhibiting excellent impact resistance and moldability are disclosed comprising:

Polyester resin compositions

Incorporation in a thermoplastic resin of a mass of mica flakes having a median shape factor of not less than 0.76, an average particle size of not more than 2,000 .mu.m and an average aspect ratio of not less than 10 followed by molding gives moldings which are high not only in mechanical strength but also in strength at weld parts. Incorporation of said mica flake mass in a thermosetting resin followed by molding affords moldings very high in strength as well as in modulus of elasticity.

Mica flake mass and resin composition with the same incorporated therein

A diaphragm for an electro-acoustic transducer comprising a sheet formed from a mixture of a polymer and mica, where the sheet contains (a) 30 to 95% by weight of a polymer selected from among polyolefins, polyesters, and polyamides and (b) 5 to 70% by weight of mica having a weight-average flake diameter not exceeding 500 microns and a weight-average aspect ratio of at least 10. By adding the specified mica, the sheet has a drastically improved dynamic modulus and a substantially unchanged loss tangent.

Diaphragm for an electro-acoustic transducer

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Kurashiki, Japan

Kenji Okuno