Patent ID: 8808850
Filing Date: 2014-08-19
Classification: B32B,C08K,C08L,C09D,C09J,C09K,Y10T

Abstract:
1. An overlay for applying to a wood substrate, comprising a core layer comprising a substrate and a resin composition, a top layer on one side of the core layer comprising a fire retardant intumescent coating composition, and an optional bottom layer on the opposite side of the core layer from the top layer; wherein the fire retardant intumescent coating composition comprises expandable graphite, an aromatic polyamine resin, morpholine, a catalyst, and ammonium polyphosphate; and wherein the expandable graphite is present in a concentration of 10-50 wt %; wherein the aromatic polyamine resin is present in a concentration of 20-60 wt %; wherein the morpholine is present in a concentration of 2-6 wt %; wherein the catalyst is present in a concentration of 1-5 wt %; wherein the ammonium polyphosphate is present in a concentration of 1-30 wt %; and wherein the core layer substrate is a lignocellulosic material or a glass substrate.