C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 25/04 (2006.01) C08J 9/224 (2006.01) C08K 3/36 (2006.01) C08K 5/098 (2006.01) C08K 5/103 (2006.01)
Patent
CA 2671396
The present invention relates to an expandable styrene polymer which contains athermane particles and is coated with a hydrophobizing means, wherein the hydrophobizing means contains 10 to 90% by weight of at least one triester of at least one fatty acid with a multihydric alcohol as component A; 5 to 70% by weight of at least one monoester of a fatty acid with a multihydric alcohol as component B; 5 to 80% by weight of at least one metal salt of a fatty acid as component C; 5 to 50% by weight of at least one silicate as component D; and 0 to 30% by weight of at least one antistatic agent as component E; and the sum of components A to E of the hydrophobizing means amounts to 100% by weight. The invention also relates to a method for the production of expandable styrene polymer by coating an expandable styrene polymer which contains athermane particles with this hydrophobizing means, a foam produced from this expandable styrene polymer, and the use of a hydrophobizing means for coating expandable styrene polymers containing athermane particles.
L'invention concerne un polymérisat de styrène expansible contenant des particules athermanes et recouvert d'un agent de traitement hydrophobe. L'agent de traitement hydrophobe contient 10 à 90 % en poids d'au moins un triester, d'au moins un acide gras comprenant un polyol en tant que composant A, 5 à 70 % en poids d'au moins un monoester d'acide gras comprenant un polyol en tant que composant B, 5 à 80 % en poids d'au moins un sel métallique d'acide gras en tant que composant C, 5 à 50 % en poids d'au moins un silicate en tant que composant D et 0 à 30 % en poids d'au moins un agent antistatique en tant que composant E, et la somme des composants A à E de l'agent de traitement hydrophobe est de 100 % en poids. La présente invention concerne également un procédé permettant de préparer un polymérisat de styrène expansible en recouvrant un polymérisat de styrène expansible contenant des particules athermanes avec cet agent de traitement hydrophobe, une mousse fabriquée à partir de ce polymérisat de styrène expansible ainsi que l'utilisation d'un agent de traitement hydrophobe dans le but de recouvrir les polymérisats de styrène expansibles contenant des particules athermanes.
Auenmuller Jurgen von
Braun Frank
Dembek Gerhard
Keller Angelika
Basf Se
Robic
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