Patent ID: 7897529
Filing Date: 2011-03-01
Classification: B01D,B01J,B32B,C04B,Y10T

Abstract:
1. A substrate capable of sustaining temperatures in excess of 1200° F., comprising: a top layer composed of quartz fibers with an average diameter of between about 0.1 and 4 microns and about 0 to 15% of microglass fiber based on the total weight of the top layer, the microglass fiber having a softening point of about 1000° F.; and a support bottom layer composed of the fibers of the top layer and, in addition, bulk refractory fibers having an average diameter of about 1 to 5 microns and 0 to 50% of chopped e-glass fibers based on the total weight of the support bottom layer.