US 12,220,901 B2
Rapidly pressing mixtures of paper and plastic to targeted thickness and density
Jack G. Winterowd, Puyallup, WA (US); Kasey Fisher, Philadelphia, PA (US); Matthew Spencer, Palatine, IL (US); and Marko Suput, Lompoc, CA (US)
Assigned to CONTINUUS MATERIALS INTELLECTUAL PROPERTY, LLC, The Woodlands, TX (US)
Filed by Continuus Materials Intellectual Property, LLC, The Woodlands, TX (US)
Filed on Apr. 11, 2023, as Appl. No. 18/298,639.
Claims priority of provisional application 63/426,656, filed on Nov. 18, 2022.
Prior Publication US 2024/0165939 A1, May 23, 2024
Int. Cl. B27N 3/02 (2006.01); B27N 3/00 (2006.01); B27N 3/10 (2006.01); B27N 3/20 (2006.01); B27N 3/24 (2006.01); B29C 35/16 (2006.01); B29C 43/58 (2006.01); B29K 105/26 (2006.01); B32B 27/20 (2006.01); B32B 29/00 (2006.01); B32B 37/04 (2006.01); B32B 37/10 (2006.01); B32B 37/24 (2006.01); E04C 2/20 (2006.01); E04D 3/35 (2006.01); E04D 12/00 (2006.01); B29L 7/00 (2006.01)
CPC B32B 37/04 (2013.01) [B27N 3/002 (2013.01); B27N 3/007 (2013.01); B27N 3/02 (2013.01); B27N 3/10 (2013.01); B27N 3/203 (2013.01); B27N 3/24 (2013.01); B29C 35/16 (2013.01); B32B 27/20 (2013.01); B32B 29/005 (2013.01); B32B 37/1054 (2013.01); B32B 37/24 (2013.01); E04C 2/20 (2013.01); E04D 3/35 (2013.01); E04D 12/002 (2013.01); B29C 2043/5808 (2013.01); B29C 2043/5816 (2013.01); B29C 2043/5825 (2013.01); B29K 2105/26 (2013.01); B29L 2007/002 (2013.01); B32B 2250/05 (2013.01); B32B 2250/40 (2013.01); B32B 2260/028 (2013.01); B32B 2260/046 (2013.01); B32B 2264/04 (2013.01); B32B 2264/062 (2013.01); B32B 2272/00 (2013.01); B32B 2305/70 (2013.01); B32B 2419/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method comprising:
pressing a mat comprising a blend of paper and plastic fragments, wherein the pressing comprises:
applying a pressure to the mat using a heated press such that the mat is compressed to a first thickness, wherein the pressure is greater than a critical pressure threshold such that at least a portion of a moisture content of the mat is in a super-heated liquid state;
maintaining the pressure on the mat above the critical pressure threshold until at least a portion of the plastic fragments of the mat are melted; and
decreasing the pressure on the mat below the critical pressure threshold such that the mat expands to a second thickness greater than or equal to a target thickness, and such that the portion of the moisture content of the mat in the super-heated liquid state is converted to steam.