Polyester polyols from terephthalic acid and oligoalkyl oxides

Details Polyester polyols from terephthalic acid and oligoalkyl oxides Polyester polyols from terephthalic acid and oligoalkyl oxides

C - Chemistry, Metallurgy

08

G

C08G 63/672 (2006.01) C08G 18/42 (2006.01) C08G 63/183 (2006.01) C08G 63/85 (2006.01) C08J 9/04 (2006.01)

Patent

CA 2758084

The present invention relates to polyester polyols from terephthalic acid and oligoalkyl oxides, method for the production thereof, and their application in the production of PUR-/PIR- hard foam materials.

La présente invention porte sur des polyesterpolyols obtenus à partir d'acide téréphtalique et d'oligo (oxydes d'alkylène), sur des procédés pour les préparer, ainsi que sur leur utilisation pour fabriquer des mousses rigides de PUR/PIR.

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