US 12,404,437 B2
Fiber reinforced flexible foams
Bruce W. Peterson, West Lake Hills, TX (US); Mark L. Crawford, Alma, AR (US); and Matthew D. McKnight, Barling, AR (US)
Assigned to L&P Property Management Company, Carthage, MO (US)
Filed by L&P Property Management Company, South Gate, CA (US)
Filed on May 4, 2022, as Appl. No. 17/736,411.
Application 17/736,411 is a continuation of application No. 16/195,278, filed on Nov. 19, 2018, granted, now 11,401,451.
Claims priority of provisional application 62/588,749, filed on Nov. 20, 2017.
Prior Publication US 2022/0259478 A1, Aug. 18, 2022
Int. Cl. C09K 5/14 (2006.01); C08G 18/48 (2006.01); C08J 9/00 (2006.01); C08K 3/04 (2006.01); C08K 3/08 (2006.01); C08K 7/06 (2006.01); C08K 9/02 (2006.01); C08K 9/04 (2006.01); C08L 75/04 (2006.01)
CPC C09K 5/14 (2013.01) [C08G 18/48 (2013.01); C08J 9/0028 (2013.01); C08J 9/0066 (2013.01); C08J 9/0085 (2013.01); C08K 3/04 (2013.01); C08K 3/08 (2013.01); C08K 7/06 (2013.01); C08K 9/02 (2013.01); C08K 9/04 (2013.01); C08L 75/04 (2013.01); C08G 2110/0008 (2021.01); C08G 2110/005 (2021.01); C08G 2110/0058 (2021.01); C08G 2110/0066 (2021.01); C08J 2205/06 (2013.01); C08J 2207/10 (2013.01); C08J 2375/04 (2013.01); C08J 2405/08 (2013.01); C08K 2003/085 (2013.01); C08K 2003/0862 (2013.01); C08K 2201/001 (2013.01); C08K 2201/003 (2013.01); C08K 2201/004 (2013.01); C08L 2203/14 (2013.01); C08L 2205/16 (2013.01); Y10T 428/249954 (2015.04); Y10T 428/249986 (2015.04)] 23 Claims
OG exemplary drawing
 
1. A flexible foam composition comprising:
a flexible latex foam structure from a precursor comprising at least one liquid component, where the flexible foam structure comprises a plurality of open foam cells, each of which is surrounded by struts; and
a plurality of fibers in substantial contact with the flexible latex foam structure, where a majority of the fibers in combination are wholly within a strut or on a surface of a strut and are substantially parallel to their respective associated strut such that the fibers are at least within 35° of the associated strut axis, a length of the fiber is less than an average foam cell diameter, the flexible foam structure has a foam density of about 0.7 to about 10 pounds per cubic foot (pcf), the fibers have a diameter between about 4 to about 12 microns, the fibers have a length between about 30 to less than 3500 microns, a plurality of foam cells span a thickness of the flexible foam structure, the fibers are present in the flexible foam composition in an amount from about 0.01 to about 30% by weight of the flexible foam composition, and wherein the fibers are randomly oriented within the flexible latex foam structure while other fibers are oriented in a substantially parallel direction within the flexible latex foam structure in an alignment relative to a thickness of the flexible latex foam structure.