Kuraray Co., Ltd.

Noboru Miyake

Satoshi Koizumi

Sumito Kiyooka

Kohei Hayashi

Masaru Koike

Hideki Kanezako

Kazutoshi Hirata

Masahiko Takamatsu

Atsumi Adachi

A sound insulation floor structure comprises a floor backing member, a floor finishing layer, and an intermediate layer between the floor backing member and the floor finishing layer, the intermediate layer comprising a buffer member comprising a nonwoven structure. The nonwoven structure comprises a thermal adhesive fiber under moisture which is melt-bonded to a fiber of the nonwoven structure to fix the fibers. For example, the sound insulation floor structure may comprise, in sequence, a floor backing member, a buffer layer, an air layer, a hard layer, and a floor finishing layer. In the floor structure, a support memberis disposed between the buffer layerand the hard layer. The support member may occupy 10 to 70% of a floor area. The sound insulation floor structure prevents subsidence of a floor member due to walking, achieves comfortableness to walk, and has improved floor impact sound insulation.

Sound insulation floor structure and sound insulation floor component as well as method for reducing floor impact sound

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Zentsuji, Japan

Noboru Miyake