Insulating panel rigid foam syntactic PUR / PIR.

摘要

The present invention relates to the use of hollow microspheres filled with a hydrocarbon FORMS OF CELLS TO INTRODUCE UNIFORM IN SYNTAX FOAM CELL STRUCTURE HAVING A bimodal. RIGID FOAM PRODUCT includes 20 to 80 percent by weight of the microspheres HOLLOW, THE DIAMETER MICROSPHERES HAVING MEANS range from 80 to 200 microns. The microspheres are encapsulated 80 to 20 weight percent of a polyurethane foam closed cell, BEARING CELLS FOAM MEDIA DIAMETER 0.01 to 40 microns.