Patent ID: 9745440
Date: 2017-08-29
CPC Classifications: C08G,C08J,C08K,C08L

Claim:
1. A sprayed polyurethane foam formed from a combination comprising: (a) at least one isocyanate component, wherein the at least one isocyanate component comprises: (b) at least one polyol component, wherein the at least one polyol component comprises: wherein both of the at least one intumescent compounds are comprised of at least one particle-based graphite material that has an overall average particle size in excess of 250 microns while further being comprised of at least about 70 percent by weight graphite particles having a particle size in excess of 250 microns but less than about 500 microns, where the inclusion of the at least one particle-based graphite material into the resulting polyurethane foam composition yields a sprayable product, and wherein the sprayed polyurethane foam contains between about 7.5 percent by weight to about 22.5 percent by weight of the at least one particle-based graphite material.