C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/35 (2006.01) B29C 44/18 (2006.01) C08G 18/10 (2006.01)
Patent
CA 2241975
Insulating webs suitable for metallic composite profiles are described, wherein these webs have a coefficient of thermal conductivity of 0.20 W/m -K or less. These insulating webs are produced from a polyurethane casting composition, wherein the polyurethane casting composition contains isocyanurate groups, and contains 5 to 15% by weight, based on the total weight of the casting composition, of hollow plastic beads having a density in the range of from 0.1 to 0.30 g/cm3,a nd having an average particle size in the range of from 5 to 200 µm. The use of casting compositions having isocyanurate groups and containing hollow plastic beads satisfying the above requirements for the production of insulating webs is furthermore described. The invention also provides metallic composite profiles, in particular for the production of windows and doors, which are characterized by a K value of 2.00 W/m -K or less.
Description de feuilles isolantes pour profilés métalliques composites; ces feuilles ont un coefficient de conductivité thermique de 0,20 W/m -K ou moins. Ces feuilles isolantes sont produites à partir d'une composition de moulage à base de polyuréthane, ladite composition renfermant des groupes isocyanurate, et 5 à 15 % en poids, basé sur le poids total de la composition de moulage, de billes de plastique creuses, dont la masse spécifique se situe dans une plage de 0,1-0,30 g/cm3, et la taille moyenne dans un intervalle de 5-200 microns. On décrit aussi l'utilisation de ces compositions de moulage renfermant des groupes isocyanurate et contenant des billes de plastique creuses, satisfaisant aux exigences ci-dessus, pour la production de feuilles isolantes. L'invention porte enfin sur des profilés métalliques composites, notamment pour la production de fenêtres et de portes, caractérisés par une valeur K de 2,00 W/m -K ou moins.
Avar Geza
Post Udo
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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