US 12,263,665 B2
Aerospace thermal acoustic fiberglass insulation useful in supporting applications
Rebecca Sue Wulliman, Centennial, CO (US); Joshua Merrell Boyce, Littleton, CO (US); Jimmy Gene Brown, Defiance, OH (US); and Jayamalar Dorsey, Highlands Ranch, CO (US)
Assigned to Johns Manville, Denver, CO (US)
Filed by JOHNS MANVILLE, Denver, CO (US)
Filed on Nov. 28, 2022, as Appl. No. 17/994,660.
Prior Publication US 2024/0173938 A1, May 30, 2024
Int. Cl. B32B 5/26 (2006.01); B32B 7/022 (2019.01); B32B 7/12 (2006.01); B32B 17/02 (2006.01); B64C 1/40 (2006.01); B32B 37/12 (2006.01); B32B 38/00 (2006.01)
CPC B32B 5/26 (2013.01) [B32B 7/022 (2019.01); B32B 7/12 (2013.01); B32B 17/02 (2013.01); B64C 1/40 (2013.01); B32B 2037/1253 (2013.01); B32B 37/1284 (2013.01); B32B 2038/0076 (2013.01); B32B 2250/03 (2013.01); B32B 2250/20 (2013.01); B32B 2262/101 (2013.01); B32B 2305/72 (2013.01); B32B 2307/102 (2013.01); B32B 2307/304 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/722 (2013.01); B32B 2307/7265 (2013.01); B32B 2605/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An insulation component for use in an airplane comprising:
a first fibrous layer having a first density and a first fiber material, wherein the first fiber material includes a first fiberglass material; and
a second fibrous layer chemically bound to the first fibrous layer, the second fibrous layer having a second density less than the first density, wherein:
the second fibrous layer includes a second fiber material including a second fiberglass material; and
an average fiber diameter of the fibers in the first and second fibrous layers is less than 20 μm.