US 12,269,940 B1
Pelletizable fiber blends
Michael J. Gmerek, III, Massillon, OH (US)
Assigned to DOWCO LLC, Akron, OH (US)
Filed by DOWCO LLC, Akron, OH (US)
Filed on Sep. 16, 2020, as Appl. No. 17/022,667.
Claims priority of provisional application 62/906,935, filed on Sep. 27, 2019.
Claims priority of provisional application 62/903,060, filed on Sep. 20, 2019.
Int. Cl. C08L 23/16 (2006.01); C08K 7/02 (2006.01); C08L 9/00 (2006.01); C08L 9/06 (2006.01); C08L 23/08 (2006.01); C08L 61/28 (2006.01); C08L 77/06 (2006.01); C08L 23/0853 (2025.01)
CPC C08L 23/16 (2013.01) [C08K 7/02 (2013.01); C08L 9/00 (2013.01); C08L 9/06 (2013.01); C08L 23/0853 (2013.01); C08L 61/28 (2013.01); C08L 77/06 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2207/04 (2013.01)] 17 Claims
 
1. A pelletizable fiber blend comprising
a plurality of short fibers including highly-fibrillated short fibers and non-fibrillated short fibers, where the highly-fibrillated short fibers are characterized by a degree of fibrillation of at least about 30 percent, where the highly-fibrillated short fibers have average fiber lengths of from about 0.1 millimeters to about 2.5 millimeters, where the non-fibrillated short fibers have average fiber lengths of from about 50 microns to about 25 millimeters; and
a binder selected from the group consisting of nylon powder, nylon fiber, polybutadiene powder, ethylene-propylene-diene terpolymer (EPDM) rubber powder, styrene-butadiene rubber powder, ethylene-vinyl acetate (EVA) powder, and hexakis(methoxymethyl) melamine (HMMM) resin powder, wherein an amount of the binder is less than about 25 wt. %, based upon a total weight of the pelletizable fiber blend,
wherein the pelletizable fiber blend comprises less than about 1 wt. % wax, based upon the total weight of the pelletizable fiber blend,
wherein the pelletizable fiber blend is capable of being pelletized.