US 11,718,934 B2
Manufacture of composite dispersion based resin-infused random fiber mat
Craig F. Gorin, Midland, MI (US); Manesh Nadupparambil Sekharan, Freeport, TX (US); Jason A. Reese, Auburn, MI (US); Amit K. Chaudhary, Midland, MI (US); Daniel L. Dermody, Midland, MI (US); Kevin J. Bouck, Broomfield, CO (US); Rebekah K. Feist, Midland, MI (US); Thomas J. Parsons, Midland, MI (US); and David H. Bank, Midland, MI (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 16/494,578
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Feb. 14, 2018, PCT No. PCT/US2018/018144
§ 371(c)(1), (2) Date Sep. 16, 2019,
PCT Pub. No. WO2018/175017, PCT Pub. Date Sep. 27, 2018.
Claims priority of provisional application 62/474,397, filed on Mar. 21, 2017.
Prior Publication US 2021/0115202 A1, Apr. 22, 2021
Int. Cl. D04H 1/64 (2012.01); B29B 15/12 (2006.01); B29C 70/18 (2006.01); C08J 3/21 (2006.01); C08J 5/04 (2006.01); D04H 3/12 (2006.01); D21H 13/50 (2006.01); D21H 17/52 (2006.01); D21H 21/14 (2006.01); B29K 307/04 (2006.01)
CPC D04H 1/64 (2013.01) [B29B 15/12 (2013.01); B29C 70/18 (2013.01); C08J 3/212 (2013.01); C08J 5/042 (2013.01); D04H 3/12 (2013.01); D21H 13/50 (2013.01); D21H 17/52 (2013.01); D21H 21/14 (2013.01); B29K 2307/04 (2013.01); C08J 2363/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of preparing a resin infused random fiber mat comprising the steps of:
a. forming a slurry comprising fiber and a liquid dispersion of polymeric resin,
b. forming a resin infused random fiber mat from the slurry by depositing the slurry onto a porous substrate,
c. removing excess liquid dispersion from the formed resin infused random fiber mat, wherein the removed excess liquid dispersion is a stable dispersion,
d. drying the resin infused random fiber mat to remove water, and
e. curing the resin infused random fiber mat.