Patent ID: 7862669
Filing Date: 2011-01-04
Classification: B32B,D04H,E04B,F16L,Y10T

Abstract:
1. The method of forming a lightweight, high performance, glass fiber product blanket for acoustical and thermal insulation, that includes: a) treating glass fibers with a fluid binding agent at elevated temperature in an oven to form a first cohesive glass fiber layer of thickness t b) repeating said treating to form a second cohesive glass fiber layer of thickness t c) subjecting said overlying layers to simultaneous heat treatment and pressurization in the oven to compress the first and second layers to a controlled density thickness t d) and removing said laminated product from the oven, e) and wherein the glass fibers in each layer have cross dimensions between 2.0 and 9.90 HT, where HT=0.00001 inch, the bulk of the fibers having lengths between 1 and 2 microns.