Patent ID: 8993463
Filing Date: 2015-03-31
Classification: C08K,C09D,D03D,D06M,D06N,Y10S,Y10T

Abstract:
1. A flame or heat flux protective coating composition consisting of a dispersion of fiberglass fibers having a length from about 1 mm to about 20 mm and a diameter from about 6 μm to about 19 μm in silicone and silicone oil, wherein said fiberglass is present in an amount from about 8% to about 12% by weight of the composition, and at least a portion of sizing material has been removed from said fiberglass, wherein the fiberglass fiber length and diameter, and its concentration in the composition, are selected to provide a coating composition that provides a protective coating which promotes effective radiation cooling (emissivity) when exposed to heat, as defined by passing a flame test comprising the steps of: a) providing a specimen consisting of a vertical steel coupon coated with the above composition; b) providing an IR sensor mounted to the back side of said specimen 2.54 cm above the bottom edge and at the center across the specimen width; c) providing a propane torch flame wherein the inner cone length of the flame is adjusted to 3.175 cm; d) applying for 10 minutes the tip of said inner cone of said flame directly and normal to said specimen's coated surface, 2.54 cm above the bottom edge and at the center across the specimen width; and e) recording the temperature as a function of time detected by said IR sensor to provide a maximum temperature; wherein a coating is considered to fail said flame test when the maximum temperature exceeds 316° C.