ISOCYANATE-BASED POLYMER FOAM HAVING IMPROVED FLAME RETARDANT PROPERTIES

摘要

There is described an isocyanate-based polymer foam having a V-0 rating according to Underwriters' Laboratories Standard 94 Flammability Test after aging of separate samples of the foam (i) for 168 hours at 150° C., and (ii) for 600 hours at 120° C. The foam may be in the form of a molded foam or a slabstock foam. The foam may be used in vehicular applications, such as an under hood application.

主权项

1. An isocyanate-based polymer foam produced from a reaction mixture comprising:
(i) at least one isocyanate; (ii) at least one active hydrogen-containing compound; (iii) red phosphorus in an amount greater than about 10 parts by weight per 100 parts by weight of component (ii); and (iv) expandable graphite in an amount greater than about 10 parts by weight per 100 parts by weight of component (ii).