US 11,807,732 B2
Method of making polymer matrix composites
Derek J. Dehn, Maplewood, MN (US); Clinton P. Waller, Jr., White Bear Lake, MN (US); Jeanne M. Bruss, Cottage Grove, MN (US); Bharat R. Acharya, Woodbury, MN (US); Brandon A. Bartling, Woodbury, MN (US); Michael S. Graff, Woodbury, MN (US); Noah O. Shanti, Maplewood, MN (US); Fabian Stolzenburg, Woodbury, MN (US); and Satinder K. Nayar, Woodbury, MN (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Appl. No. 16/760,468
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Nov. 15, 2018, PCT No. PCT/IB2018/059002
§ 371(c)(1), (2) Date Apr. 30, 2020,
PCT Pub. No. WO2019/097449, PCT Pub. Date May 23, 2019.
Claims priority of provisional application 62/587,053, filed on Nov. 16, 2017.
Prior Publication US 2020/0347200 A1, Nov. 5, 2020
Int. Cl. C08J 9/28 (2006.01); C08K 3/22 (2006.01); C08J 9/00 (2006.01)
CPC C08J 9/28 (2013.01) [C08J 9/0004 (2013.01); C08J 9/0066 (2013.01); C08K 3/22 (2013.01); C08J 2201/0522 (2013.01); C08J 2201/0542 (2013.01); C08J 2205/05 (2013.01); C08J 2323/06 (2013.01); C08K 2003/2237 (2013.01); C08K 2201/001 (2013.01); C08K 2201/01 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of making a polymer matrix composite comprising a porous polymeric network structure and a plurality of particles distributed within the porous polymeric network structure, the method comprising:
combining a thermoplastic polymer, a solvent, and a plurality of thermally conductive particles to provide a slurry;
forming the slurry into a formed article;
heating the formed article in an environment to retain at least 90 percent by weight of the solvent in the formed article, based on the weight of the solvent in the formed article, and solubilize at least 50 weight percent of the thermoplastic polymer, based on the total weight of the thermoplastic polymer;
inducing phase separation of the thermoplastic polymer from the solvent to provide the polymer matrix composite, and
further comprising compressing the polymer matrix composite.