US 12,226,971 B2
Biodegradable, industrially compostable, and recyclable injection molded microcellular flexible foams
Robert Falken, Solana Beach, CA (US)
Assigned to O2 Partners, LLC, Amherst, MA (US)
Filed by O2 Partners, LLC, Amherst, MA (US)
Filed on Mar. 11, 2021, as Appl. No. 17/198,806.
Application 17/198,806 is a continuation of application No. 17/075,789, filed on Oct. 21, 2020, granted, now 11,465,377.
Application 17/075,789 is a continuation of application No. 16/872,656, filed on May 12, 2020, granted, now 10,843,429, issued on Nov. 24, 2020.
Application 16/872,656 is a continuation in part of application No. 16/418,968, filed on May 21, 2019, granted, now 11,155,009.
Claims priority of provisional application 62/853,805, filed on May 29, 2019.
Claims priority of provisional application 62/674,544, filed on May 21, 2018.
Prior Publication US 2021/0229385 A1, Jul. 29, 2021
Int. Cl. B29D 35/00 (2010.01); A43B 17/14 (2006.01); A43D 29/00 (2006.01); B29D 35/12 (2010.01); B29K 77/00 (2006.01); B32B 5/18 (2006.01); B32B 5/24 (2006.01); B32B 7/022 (2019.01); C08F 290/06 (2006.01)
CPC B29D 35/0009 (2013.01) [A43B 17/14 (2013.01); A43D 29/00 (2013.01); B29D 35/122 (2013.01); B32B 5/18 (2013.01); B32B 5/245 (2013.01); B32B 7/022 (2019.01); C08F 290/065 (2013.01); B29K 2077/00 (2013.01); B32B 2266/0257 (2013.01); B32B 2307/7163 (2013.01); B32B 2307/72 (2013.01); B32B 2437/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A recyclable shoe-insole comprising a laminate material, wherein the laminate material consists of:
a recyclable foam layer consisting of a polymer matrix and an inert physical foaming agent uniformly dispersed throughout the polymer matrix, the polymer matrix comprising a non-crosslinked thermoplastic polymer selected from a polyamide polymer or a polyamide copolymer, wherein the non-crosslinked thermoplastic polymer comprises caprolactam monomers, and wherein the recyclable foam layer includes a smooth outer surface; and
a fabric layer disposed above and directly coupled to a top surface of the recyclable foam layer.