US 11,931,999 B2
Internally reinforced aerogel and uses thereof
Alan Sakaguchi, San Marcos, TX (US); Garrett Poe, Spencer, MA (US); and Michael Merwin, San Marcos, TX (US)
Assigned to BLUESHIFT MATERIALS, INC., Spencer, MA (US)
Filed by BLUESHIFT MATERIALS, INC., Spencer, MA (US)
Filed on Nov. 2, 2021, as Appl. No. 17/517,429.
Application 17/517,429 is a continuation of application No. 16/664,558, filed on Oct. 25, 2019, granted, now 11,192,331.
Application 16/664,558 is a continuation of application No. 15/967,926, filed on May 1, 2018, granted, now 10,500,557, issued on Dec. 10, 2019.
Application 15/967,926 is a continuation of application No. PCT/US2016/055775, filed on Oct. 6, 2016.
Claims priority of provisional application 62/262,044, filed on Dec. 2, 2015.
Claims priority of provisional application 62/250,044, filed on Nov. 3, 2015.
Prior Publication US 2022/0063240 A1, Mar. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 5/18 (2006.01); B01J 13/00 (2006.01); B32B 5/00 (2006.01); B32B 5/02 (2006.01); B32B 5/22 (2006.01); B32B 5/24 (2006.01)
CPC B32B 5/18 (2013.01) [B01J 13/0091 (2013.01); B32B 5/00 (2013.01); B32B 5/02 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 5/026 (2013.01); B32B 5/22 (2013.01); B32B 5/24 (2013.01); B32B 5/245 (2013.01); B01D 2239/0613 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0654 (2013.01); B01D 2239/10 (2013.01); B01D 2239/1225 (2013.01); B01D 2239/1233 (2013.01); B32B 2260/00 (2013.01); B32B 2260/021 (2013.01); B32B 2260/028 (2013.01); B32B 2260/04 (2013.01); B32B 2260/046 (2013.01); B32B 2262/02 (2013.01); B32B 2262/0207 (2013.01); B32B 2262/0215 (2013.01); B32B 2262/0223 (2013.01); B32B 2262/023 (2013.01); B32B 2262/0238 (2013.01); B32B 2262/0246 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/0284 (2013.01); B32B 2262/04 (2013.01); B32B 2262/06 (2013.01); B32B 2262/062 (2013.01); B32B 2262/065 (2013.01); B32B 2262/067 (2013.01); B32B 2262/08 (2013.01); B32B 2262/10 (2013.01); B32B 2262/101 (2013.01); B32B 2262/103 (2013.01); B32B 2262/105 (2013.01); B32B 2262/106 (2013.01); B32B 2266/00 (2013.01); B32B 2266/0214 (2013.01); B32B 2266/06 (2013.01); B32B 2457/00 (2013.01); B32B 2509/00 (2013.01); B32B 2605/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A composite comprising a stack of layers, the stack comprising:
a porous polyimide aerogel layer having a first surface and an opposing second surface;
a first support layer having a first surface and an opposing second surface, wherein the first support layer comprises a polyurethane film;
a second support layer having a first surface and an opposing second surface, wherein the second support layer comprises polyethylene, and wherein the first surface of the first support layer is attached to the second surface of the second support layer,
wherein an interface is formed between a portion of the first surface of the porous aerogel layer and a portion of the second surface of the first support layer such that the first surface of the aerogel layer and the second surface of the first support layer are in direct contact with one another, and the first support layer at least partially permeating into pores of the porous polyimide aerogel layer,
wherein a majority of the volume of the aerogel layer does not include the first and second support layers, and
wherein the composite stack has a thickness of 3 mils to 16 mils; and
wherein the first support has a thickness of 0.5 to 2 mils.