US 12,270,138 B2
Additive to improve properties of asphalt cement concrete and method of manufacturing thereof
Steven Santa Cruz, San Diego, CA (US)
Assigned to Surface Tech LLC, La Jolla, CA (US)
Filed by Surface Tech LLC, La Jolla, CA (US)
Filed on Sep. 25, 2023, as Appl. No. 18/372,614.
Application 18/372,614 is a continuation of application No. 17/118,213, filed on Dec. 10, 2020, granted, now 11,767,625.
Prior Publication US 2024/0011209 A1, Jan. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. D06C 27/00 (2006.01); D02J 13/00 (2006.01); C08L 95/00 (2006.01)
CPC D06C 27/00 (2013.01) [D02J 13/006 (2013.01); C08L 95/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Aramid fiber bundle segments formed by a method comprising:
soaking, continuously, different portions of a plurality of continuous aramid fibers in a length direction of the plurality of continuous aramid fibers, in a liquid;
pulling, continuously, the different portions of the plurality of continuous aramid fibers from the liquid to produce continuous portions of a wet continuous aramid fiber bundle, while wringing by the pulling, continuously, excess liquid from continuous portions of the wet continuous aramid fiber bundle, by applying a level of tension, continuously, to the wet continuous aramid fiber bundle, to increase a ratio of weight of fiber to liquid of the continuous portions of the wet continuous aramid fiber bundle, so that a filament-air interface surface tension in the continuous portions is greater than a filament-liquid interface surface tension in the continuous portions;
severing the continuous portions of the wringed continuous aramid fiber bundle, continuously after wringing the excess liquid, into aramid fiber bundle segments, each bundle segment of the aramid fiber bundle segments consisting of a plurality of aramid filament segments soaked in liquid and wringed.