US 12,252,879 B2
Multifunctional system for passive heat and water management
Derek Martin Stein, Providence, RI (US)
Assigned to Adept Materials, Inc., Somerville, MA (US)
Filed by Techstyle Materials, Inc., Somerville, MA (US)
Filed on Nov. 8, 2023, as Appl. No. 18/504,372.
Application 18/504,372 is a continuation of application No. 17/891,771, filed on Aug. 19, 2022, granted, now 11,851,871.
Application 17/891,771 is a continuation of application No. 16/558,091, filed on Aug. 31, 2019, granted, now 11,560,710, issued on Jan. 24, 2023.
Claims priority of provisional application 62/725,446, filed on Aug. 31, 2018.
Prior Publication US 2024/0301679 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E04B 1/64 (2006.01); B32B 7/12 (2006.01); B32B 19/02 (2006.01); B32B 19/04 (2006.01); B32B 27/14 (2006.01); B32B 27/18 (2006.01); B32B 27/34 (2006.01)
CPC E04B 1/64 (2013.01) [B32B 7/12 (2013.01); B32B 19/02 (2013.01); B32B 19/045 (2013.01); B32B 27/14 (2013.01); B32B 27/18 (2013.01); B32B 27/34 (2013.01); B32B 2264/10 (2013.01); B32B 2307/724 (2013.01); B32B 2607/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A multifunctional material system having a first side and a second side that opposes the first side, the system comprising:
a variable-permeability layer configured to be applied to a first surface of a substrate; and
a desiccant layer applied to a surface of the variable-permeability layer that is opposite to another surface of the variable-permeability layer adjacent the substrate;
wherein water enters the desiccant layer through the variable-permeability layer when humidity is high on both the first and second sides of the multifunctional material system, wherein water leaves the desiccant layer through the variable-permeability layer when the humidity is low on both the first and second sides of the multifunctional material system, and wherein, when the humidity is high, a rate of water entering the desiccant layer through the variable-permeability layer is greater than a rate of water exiting the desiccant layer through the variable-permeability layer when the humidity is low.