| 摘要 |
The present invention relates to compositions for (meth)acrylic polymers moulded fireproof panels. Composition comprises at least one (meth)acrylic ester, (meth)acrylic acid and at least a phosphorus compound which is anhydrous and which is chosen among phosphoric acids, phosphoric acids esters o their mixtures, optionally halogenated. (Meth)acrylic acid and phosphorus quantity, by weight with respect to overall mixture constituting composition, is such that FRC fireproofing coefficient: ( percent phosphoric acid) x 0.13 + ( percent P-ester) x 0.20 + ( percent OH-ester) x 0.14 + ( percent (meth)acrylic acid x 0.025 + 1.17 x ( percent halogenated P-ester) x No. halogen M atoms (halogenated P-ester) is superior to 0.95.
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