Patent ID: 9187674
Filing Date: 2015-11-17
Classification: C08K,C09D

Abstract:
1. A fire-resistant coating composition comprising: a first component comprising an isocyanate, at least a second component comprising an amine-based tetrafunctional polyol, at least one pigment, diol ether, expandable graphite particles, a flame retardant additive, a thickening agent and at least one catalyst, wherein the amine-based tetrafunctional polyol comprises from about 30 to about 60% by weight of the total second component, the pigment comprises from about 1 to about 10% by weight of the total second component, the diol ether comprises from about 5 to about 20% by weight of the total second component, the expandable graphite particles comprise from about 20 to about 50% by weight of the total second component, the flame retardant additive comprises from about 8 to about 30% by weight of the total second component, the thickening agent comprise from about 2 to about 5% by weight of the total second component, the at least one catalyst comprises a tin catalyst comprising from about 0.1% to about 4% by weight of the total second component and a polyurethane catalyst comprising from about 0.1 to about 2% by weight of the total second component.