Pre-impregnating agents for high-resistant and elastic...

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 5/24 (2006.01) C08G 73/06 (2006.01) C08L 61/28 (2006.01)

Patent

CA 2516932

The invention relates to pre-impregnating agents for high-resistant and elastic composite fibres comprising 50-85 mass% textile surface components and 15-50 mass% polyaminotriazine ether containing carbamide acid ester groups. The inventive pre-impregnating agents according to a method for fused material application or a method for liquid material application which consist in applying mixtures of aminotriazine ethers, polyaminotriazine ether having molar mass ranging from 300 to 5000 and dissociates to a textile support materials. A molar ratio dissociate/imino and amino groups in a triazine sequence is equal ranges from 0.4:1 to 0.7:1. Said pre-impregnating agents can be used for heat-protecting cloths, flameproof covers, electric insulating papers, construction parts and for vehicle equipment.

La présente invention concerne des préimprégnés destinés à des fibres composites ayant une résistance et une élasticité élevée, comprenant 50 à 85 % en masse d'entités de surface textiles et 15 à 50 % en masse d'éthers de polyaminotriazine contenant des groupes d'ester d'acide de carbamide. Lesdits préimprégnés peuvent être préparés selon un procédé d'application de masse en fusion ou un procédé d'application de masse liquide, des mélanges d'éthers d'aminotriazine, d'éthers de polyaminotriazine de masses molaires de 300 à 5000 et de diisocyanates étant appliqués sur des matières de support textiles, le rapport molaire diisocyanate / somme des groupes imino et groupes amino dans la séquence triazine valant de 0,4: 1 à 0,7: 1. Les préimprégnés conviennent à la préparation de vêtements de protection contre la chaleur, de couvertures ignifuges, de papiers d'isolation électrique, de pièces de construction et d'équipements de véhicules.

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