Flexible polyurethane foams prepared using modified...

C - Chemistry – Metallurgy – 08 – G

Patent

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C08G 18/36 (2006.01)

Patent

CA 2540677

A flexible polyurethane foam prepared by reacting, in the presence of a blowing agent, a polyisocyanate with an active hydrogen-containing composition that includes a modified vegetable oil-based polyol. The foams exhibit good load-bearing properties, relatively high sag factors, and/or good color retention upon exposure to light.

L'invention porte sur du polyuréthane expansé souple préparé en faisant réagir en présence d'un agent gonflant du polyisocyanate d'huiles végétales modifiée a polyisocyanate avec une composition active hydrogénée comprenant un polyol à base d'huiles végétales modifiées. Le dit polyuréthane présente un bonne résistance à l'écrasement, un facteur sag relativement élevé et/ou une bonne conservation de la couleur lorsqu'exposé à la lumière.

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