Kuraray Co., Ltd.

Shunsuke Suiko

Ryokei Endo

Yosuke Washitake

Satoshi Katsuya

Takeshi Tsudaka

Provided are a space filling material and a space filling structure capable of filling a predetermined space for various purposes, and method for using those. A space filling material () includes reinforcing fibers as an expansion material and a resin. The reinforcing fibers form a plurality of intersections and are bonded with the resin at at least one of the intersections. Heating of the space filling material causes an expansion stress in at least a thickness direction (X) such that the space filling material fills a predetermined space (). For example, the space filling material may contain the resin at a volume ratio of 15 to 95 vol % based on a total volume of the reinforcing fibers and the resin.

Space filling material and space filling structure, and methods for using those

A light-emitting fiber includes a core and a cladding and is configured to emit light through a side surface of the fiber. A resin used for the core is at least one selected from the group consisting of polymethyl methacrylate, polymethyl methacrylate copolymers, polystyrene, polycarbonates, polyorganosiloxanes, and norbornene, and a resin used for the cladding is fluorine resin. The light-emitting fiber has a fiber diameter of 95 &#x3bc;m or less.

Light-emitting fiber

Provided is an expansive refractory material that not only has excellent fire resistance but also can provide a heat insulating function for protecting a content by expanding to form a heat insulating layer when the refractory material is brought close to a heat source or comes into contact with flame. The refractory material at least includes: discontinuous reinforcing fibers having a thermal conductivity of 4 W/(m&#xb7;K) or higher; and a flame-retardant thermoplastic resin, wherein the discontinuous reinforcing fibers are dispersed in the refractory material. The refractory material has a post-expansion porosity of 30% or higher.

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Osaka, Japan

Shunsuke Suiko