| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire-resistant covering easy to be fitted and its fitting structure. SOLUTION: It is a fire-resistant covering 1 comprising a fire-resistant covering body 2 with properties to expand when heated and an independent form retainer 3 laid on top of the other. The fire-resistant covering body 2 is flexible, and consists of a fire-resistant non-vulcanized rubber composite containing non-vulcanized rubber, phosphorus compound, neutralized graphite with thermal expansion properties, and inorganic filler. The inorganic filler contains calcium or magnesium carbonate. In the rubber composite, the total of phosphorus compound and neutralized thermo-expanding graphite is in a range of a 20 to 200 parts weight, and the inorganic filler is in a range of a 50 to 500 parts weight, relative to 100 parts weight of non-vulcanized rubber, and the weight ratio of the neutralized thermo-expanding graphite to the phosphorus compound (thermo-expanding graphite to phosphide) is in the range of 9:1 to 1:9. COPYRIGHT: (C)2006,JPO&NCIPI
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