Polyisocyanurate foams prepared from partially etherified methyl

Details Polyisocyanurate foams prepared from partially etherified methyl Polyisocyanurate foams prepared from partially etherified methyl

1983-09-14

1984-06-19

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C08G 1814

Patent

active

044553978

ABSTRACT:
Polyisocyanurate foams are prepared from reacting partially etherified methylolmelamines either alone or in mixture with polyoxyalkylene polyether polyols with polyisocyanates. Improved friability and flame retardancy are obtained.

REFERENCES:
patent: 3135707 (1964-06-01), Nyquist et al.
patent: 4139501 (1979-02-01), Rudner et al.
patent: 4197373 (1980-04-01), Miano et al.

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