US 12,251,913 B2
Multilayer flooring including fiber core layer
Alan B. Collison, Pierce, NE (US)
Assigned to MP Global Products, L.L.C., Norfolk, NE (US)
Filed by MP Global Products, L.L.C., Norfolk, NE (US)
Filed on Jun. 18, 2024, as Appl. No. 18/746,200.
Application 18/746,200 is a continuation in part of application No. 18/496,725, filed on Oct. 27, 2023, granted, now 12,044,015.
Claims priority of provisional application 63/424,274, filed on Nov. 10, 2022.
Prior Publication US 2024/0336049 A1, Oct. 10, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 29/00 (2006.01); B32B 29/02 (2006.01)
CPC B32B 29/02 (2013.01) [B32B 2255/02 (2013.01); B32B 2255/20 (2013.01); B32B 2255/26 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0284 (2013.01); B32B 2262/12 (2013.01); B32B 2307/554 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/7376 (2023.05)] 19 Claims
OG exemplary drawing
 
1. A multilayer flooring comprising:
a decorative layer configured to provide a desired appearance of the multilayer flooring; and
a core layer disposed below the decorative layer and configured to provide stability, wherein the core layer is made of a substrate fiber bound together by a thermoplastic binder fiber, the substrate fiber including short polyethylene terephthalate (PET) fiber and long PET fiber, the short PET fiber having a length within a range from 2 millimeters (mm) to 10 mm, the long PET fiber having a length within a range from 10 mm to 20 mm, the short PET fiber making up between 38 percent and 58 percent by weight of the core layer.