Isocyanurate foams using a sulfonium zwitterion/metal carbonylat

Details Isocyanurate foams using a sulfonium zwitterion/metal carbonylat Isocyanurate foams using a sulfonium zwitterion/metal carbonylat

1981-05-18

1983-06-28

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521117, 521137, 521902, 528 48, 549 78, C08G 1814, C08G 1816, C08G 1858, C08G 1865

Patent

active

043906443

ABSTRACT:
Stable isocyanurate foams are produced at rapid reaction rates by contacting an organic polyisocyanate with an active hydrogen compound such as a polyether polyol in the presence of an initiator comprising an ortho-sulfonium phenoxide and a carbonylate salt such as sodium acetate.

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