Patent ID: 9074039
Filing Date: 2015-07-07
Classification: C08G,C08J,C08K,C08L

Abstract:
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 components (a) and (b) are sprayed at a ratio of about one to one by volume to yield a sprayed polyurethane foam composition, wherein the at least one intumescent compound is a particle-based expandable graphite compound where at least 90.55 percent by weight of the particles of the expandable graphite compound have a particle size in the range of 250 microns to 500 microns, and wherein the sprayed polyurethane foam contains between about 7.5 percent by weight to 12.5 percent by weight of the particle-based expandable graphite compound and passes a fire test selected from UL 1715.