US 12,269,011 B2
Polymer matrix composites comprising functional particles and methods of making the same
Jerald K. Rasmussen, Woodville, WI (US); Derek J. Dehn, Maplewood, MN (US); Clinton P. Waller, Jr., White Bear Lake, MN (US); Bharat R. Acharya, Woodbury, MN (US); and Satinder K. Nayar, Woodbury, MN (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed on Jul. 12, 2023, as Appl. No. 18/351,030.
Application 18/351,030 is a continuation of application No. 16/763,339, granted, now 11,745,167, previously published as PCT/IB2018/058999, filed on Nov. 15, 2018.
Claims priority of provisional application 62/587,041, filed on Nov. 16, 2017.
Prior Publication US 2023/0356186 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 20/28 (2006.01); B01D 39/16 (2006.01); B01J 20/10 (2006.01); B01J 20/22 (2006.01); B01J 20/26 (2006.01); B01J 20/30 (2006.01)
CPC B01J 20/28026 (2013.01) [B01D 39/1676 (2013.01); B01J 20/103 (2013.01); B01J 20/106 (2013.01); B01J 20/22 (2013.01); B01J 20/261 (2013.01); B01J 20/265 (2013.01); B01J 20/28021 (2013.01); B01J 20/3007 (2013.01); B01J 20/305 (2013.01); B01D 2239/0407 (2013.01); B01D 2239/10 (2013.01); B01D 2239/1208 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A polymer matrix composite comprising:
a porous polymeric network structure comprising ultra-high molecular weight polyethylene, ultra-high molecular weight polypropylene, or a combination thereof; and
a plurality of functional particles distributed within the polymeric network structure, each of the functional particles having a surface and one or more functional groups directly attached to the surface or attached to a linker group which is in turn attached to the surface,
wherein the polymer matrix composite has an air flow resistance at 25° C., as measured by the Air Flow Resistance Test, of less than 300 seconds/50 cm3/500 micrometers.