C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/00 (2006.01) C08K 7/20 (2006.01) C08K 7/28 (2006.01)
Patent
CA 2567203
The method forms a polyurethane article and involves dispersing polyurethane particles in a substantially aqueous liquid, mixing in a fine glass filler such as a post-~consumer ground soda-lime glass, casting the filled dispersion and coalescing the particles by removing the liquid such that a polyurethane article having fused particles are formed. The polyurethane articles are useful as carpet backings.
Le procédé permet de former un article en polyuréthanne et comprend les étapes suivantes : dispersion des particules de polyuréthanne dans un liquide sensiblement aqueux, mélange dans une charge de fibres de verre fines sous forme de verre sodocalcique en tant que produit de base post-consommation, coulée de la dispersion chargée, et coalescence des particules par élimination du liquide, de manière à former un article en polyuréthanne présentant des particules fondues. Les articles en polyuréthanne sont utilisés comme dossiers de tapis.
Jenkines Randall C.
Koonce William A.
Mobley Larry W.
Dow Global Technologies Inc.
Smart & Biggar
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