US 11,866,565 B2
Polymer matrix composites comprising intumescent particles and methods of making the same
Derek J. Dehn, Maplewood, MN (US); Bharat R. Acharya, Woodbury, MN (US); Brandon A. Bartling, Woodbury, MN (US); Paul T. Hines, Prior Lake, MN (US); Clinton P. Waller, Jr., White Bear Lake, 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 Jan. 22, 2021, as Appl. No. 17/155,188.
Application 17/155,188 is a division of application No. 16/191,554, filed on Nov. 15, 2018, granted, now 10,927,228.
Claims priority of provisional application 62/587,039, filed on Nov. 16, 2017.
Prior Publication US 2021/0163702 A1, Jun. 3, 2021
Int. Cl. C08J 9/00 (2006.01); C08J 3/14 (2006.01); C08J 3/20 (2006.01); C08L 101/14 (2006.01); C08J 3/02 (2006.01); C08K 3/34 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08J 3/21 (2006.01)
CPC C08J 9/0066 (2013.01) [C08J 3/14 (2013.01); C08J 3/203 (2013.01); C08J 3/212 (2013.01); C08L 101/14 (2013.01); C08J 2205/052 (2013.01); C08J 2300/22 (2013.01); C08J 2323/06 (2013.01); C08K 3/04 (2013.01); C08K 3/22 (2013.01); C08K 3/346 (2013.01); C08K 2003/2224 (2013.01); C08K 2003/2227 (2013.01); C08K 2201/005 (2013.01)] 20 Claims
 
1. A polymer matrix composite comprising:
a porous polymeric network structure; and
a plurality of intumescent particles distributed within the polymeric network structure, wherein the intumescent particles are present in a range from 15 to 99 weight percent, and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135° C.