Polyurethane carpet backings made using hydroxymethylated...

Details Polyurethane carpet backings made using hydroxymethylated... Polyurethane carpet backings made using hydroxymethylated...

C - Chemistry, Metallurgy

08

G

C08G 18/36 (2006.01) C08G 18/42 (2006.01)

Patent

CA 2578848

Polyurethane carpet backings are made using a polyurethane-forming composition that includes hydroxymethyl-containing polyester polyols. The formulation allows a significant replacement of conventional polyols with polyols derived from annually renewable resources, while maintaining important properties like edge curl, tuftbind, viscosity and good curing rates.

L'invention concerne des dossiers de tapis en polyuréthanne produits à l'aide d'une composition de formation de polyuréthanne qui comprend des polyols de polyester contenant un hydroxyméthyle. Ladite formulation permet de remplacer en proportions notables les polyols classiques par des polyols dérivés de ressources annuellement renouvelables, tout en préservant des propriétés importantes comme la résistance au gondolement, la résistance des touffes à l'arrachement, la viscosité et la vitesse de durcissement.

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