Process for the production of moulded parts and fillings of...

Details Process for the production of moulded parts and fillings of... Process for the production of moulded parts and fillings of...

C - Chemistry, Metallurgy

08

G

C08G 18/08 (2006.01) B29C 67/20 (2006.01) C08G 18/16 (2006.01)

Patent

CA 2127406

PROCESS FOR THE PRODUCTION OF MOLDED PARTS AND FILLINGS OF RIGID AND FLEXIBLE POLYURETHANE FOAMS ABSTRACT OF THE DISCLOSURE Molded parts and fillings of rigid and flexible polyurethane foams and rigid polyurethane foams with isocyanurate structures are made from a polyol and isocyanate in the presence of an activator, water, a blowing agent and optionally other additives. Imperfections in the foam are avoided by raising the amount of activator with time during the production of the reaction mixture in such a way that the friability time occurs simultaneously throughout the contents of the mold.

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