HIGH LOAD BEARING POLYURETHANE FOAMS MADE FROM MIXED INITIATOR POLYETHER POLYOLS

摘要

High load bearing flexible polyurethane foams are made using novel polyether polyols which may be made by alkoxylating a mixture of initiators. The initiator mixture is made up of about 60 to 90 wt.% of a partially alkoxylated trifunctional initiator and 10 to 40 wt.% of a secondary partially alkoxylated initiator having an active hydrogen functionality of from 4 to 8. Preferably, the alkylene oxide component to be reacted with the initiator mixture is a blend of ethylene oxide and propylene oxide.