| 摘要 |
An expanded polymer product with high distortion temperature, high flame resistance and low smoke toxicity and opacity comprises, in combination: - between 18% and 25% of a mixture of at least two isocyanates; - between 8% and 11% of a modified terpolymer; - between 19% and 42% of a PVC resin in emulsion form; - between 4% and 7% of at least one expanding agent; - between 0.5% and 1% of at least one temperature stabilizer; - between 16% and 40% of TiO2. Said product is used particularly in sea, ground and air transport, and in numerous constructional applications in which the materials must combine high technical characteristics with adequate lightness.
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