Polyether polyols from mixed initiators

Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant

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25218831, 521175, 521167, 521174, 536 41, 568620, 568624, C09K 300, H05B 3300

Patent

active

045281122

ABSTRACT:
Novel polyether polyols made by alkoxylating a mixture of initiators are described. 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. Flexible polyurethane foams made from these polyether polyols have improved load bearing properties as compared with those made from prior art polyols.

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patent: 4446313 (1984-05-01), Dix et al.
patent: 4451588 (1984-05-01), Speranza et al.

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