Preparation of low friability rigid polyurethane foam

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 25AM, 260 25AQ, C08G 1814, C08G 1850

Patent

active

039336980

ABSTRACT:
An improvement is disclosed in the preparation of rigid polyurethane foams which have relatively high surface friability. The improvement resides in the use of a select group of amine-based polyols to reduce the friability of the resulting foam.

REFERENCES:
patent: 3419532 (1968-12-01), Jackson
patent: 3424700 (1969-01-01), Booth
patent: 3442888 (1969-05-01), Degginger
patent: 3471416 (1969-10-01), Fijal
patent: 3630973 (1971-12-01), Ardis
patent: 3655588 (1972-04-01), Mosso
patent: 3763111 (1973-10-01), Fijal
patent: 3847844 (1974-11-01), Fuzesi

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