Kanebo, Limited

Nissan Motor Company Limited

Zenji Hagiwara

Akira Dono

Satoshi Ando

Hiroshi Sugawara

Shigenori Kazama

Yugoro Masuda

Kunio Ichihashi

A sound absorbing material comprises a fiber gathered body containing at least 50% by weight of synthetic fiber staples and having a mean density of 0.02-0.2 g/cm.sup.3, in which at least 30% by weight of irregular-shaped fibers having a particular sectional shape are contained in the fiber gathered body.

Sound absorbing materials

A polymer which contains amorphous aluminosilicate particles holding metal ions having a bactericidal action is physically stable and enables an ideal antibacterial or bactericidal action by the antibacterial metal ion in an excited state. The polymer is produced by mixing an organic polymer with said amorphous aluminosilicate solid particles before the polymer is molded. Alternatively, the polymer is produced by molding an organic polymer containing amorphous aluminosilicate solid particles, and treating the molded organic polymer with a solution of a water-soluble salt of a metal having a bactericidal action, thereby allowing the metal ions to be held on at least some of the amorphous aluminosilicate solid particles.

Polymer containing amorphous aluminosilicate particles and process for

Growing community of inventors

Osaka, Japan

Akira Dono