C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 1/02 (2006.01) C08K 3/36 (2006.01) C08L 97/02 (2006.01)
Patent
CA 2620096
The present invention relates to a composite material based on (a) a cellulose- or lignocellulose-containing material and (b) a composite as a binder, the composite resulting from the reaction of at least the components (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of > 20% by weight, (iii) an organic acid as a hydrolysis catalyst and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as a crosslinking agent. The present invention furthermore relates to a process for the production of said composite materials and the use of a composite (b) as a binder for the production of wood-based materials.
L'invention concerne une matière composite à base: (a) d'une matière contenant de la cellulose ou de le lignocellulose et (b) d'un composite servant de liant. Le composite de l'invention provient de la réaction d'au moins un des composants suivants : (i) un glycidyloxypropylalkoxysilane, (ii) un sol de silice aqueuse présentant une teneur en solides supérieure à 20 % en poids, (iii) un acide organique servant de catalyseur d'hydrolyse et (iv) du zirconate de n-propyle, du titanate de butyle ou de l'acétylacétonate de titane servant d'agent de réticulation. L'invention concerne également un procédé pour produire des matières composites et l'utilisation d'un composite (b) servant de liant pour la production de matières à base de bois.
Edelmann Roland
Jenkner Peter
Kharazipour Alireza
Kloeser Lars
Monkiewicz Jaroslaw
Evonik Degussa Gmbh
Fetherstonhaugh & Co.
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