Matsushita Electric Works, Ltd.

Takashi Nakai

Shozo Hirao

Yoshihiro Ohta

Hiroyuki Ishikawa

Kazuo Seto

Ayumu Yasuda

Hiroaki Usui

Yuzo Okudaira

Kazunori Umeoka

Hideyuki Ando

Satoru Konishi

Sadao Yabu

Kazushige Uchida

Yoshitaka Kurihara

Hidemi Ibi

Wakio Yamada

A resin molded article is produced by performing extrusion molding of a thermoplastic amorphous resin containing a dispersion phase, and then rolling it. According to a molecular orientation associated with an elongation of the dispersion phase in the rolling direction, it is possible to provide the resin molded article having an increased elastic modulus and a reduced coefficient of linear expansion.

Resin formed article and method for production thereof

A sound absorptive material has powder particles having a sound absorption characteristics at a low frequency and generally supported in a vibratable state by a porous support, whereby the sound absorptive material can be increased in the sound absorption coefficient in the low frequency range while maintaining the absorptive material to be thin.

Sound absorptive material

A method of manufacturing a modifed wood material can fix within a raw wood material an insoluble, non-flammable inorganic compound with a highly efficient reaction achieved between cations and anions by sequentially immersing the raw wood material at least three times alternately in each of, and different one from that employed immediately before of a first water-soluble inorganic substance solution containing cations and a second water-soluble inorganic substance solution containing anions.

Method of manufacturing modified wood material

A method of manufacturing a modified wood material, wherein a raw wood material is processed in a first bath of a first solution containing metallic ions high in the affinity and showing insoluble and non-flammable properties within the wood material, and then in a second bath of a second solution containing negative ions which produces an insoluble, non-flammable inorganic composition upon reaction with the metallic ions, whereby the obtained modified wood material is made to have the insoluble, non-flammable inorganic composition produced and fixed therein to allow the material to hold a good flame retardancy and excellent rotproof and mothproof properties.

Growing community of inventors

Sakai, Japan

Takashi Nakai