	US 11,987,683 B2
	Polymer-based construction materials
Bruce Edward Stanhope, Waynesville, OH (US); Peter Warburton, Tunkhannock, PA (US); Daniel Wesley Davies, Clarks Summit, PA (US); David Joel Parker, Middleville, MI (US); and Jeffrey S. Ross, Lancaster, PA (US)
Assigned to The AZEK Group LLC, Chicago, IL (US)
Filed by The AZEK Group LLC, Chicago, IL (US)
Filed on Mar. 21, 2022, as Appl. No. 17/699,867.
Application 17/699,867 is a continuation of application No. 16/572,415, filed on Sep. 16, 2019, granted, now 11,306,191.
Claims priority of provisional application 62/732,447, filed on Sep. 17, 2018.
Prior Publication US 2022/0204713 A1, Jun. 30, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 7/18 (2006.01); B29C 59/02 (2006.01); B29C 59/14 (2006.01); C08K 3/22 (2006.01); C08K 3/26 (2006.01); C08L 27/06 (2006.01); E04B 1/348 (2006.01)

CPC C08J 7/18 (2013.01) [B29C 59/02 (2013.01); B29C 59/14 (2013.01); C08K 3/22 (2013.01); C08K 3/26 (2013.01); C08L 27/06 (2013.01); B29C 2059/027 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/265 (2013.01); E04B 1/34846 (2013.01); E04B 2103/04 (2013.01)]

20 Claims

1. A method of preparing an extruded polymer-based construction material for future surface painting, the method comprising:

in response to a treatment of a surface of the extruded polymer-based construction material, increasing a surface energy of the surface from a first surface energy to a second surface energy of at least 40 dynes/cm², the polymer-based construction material comprising a polymeric composition including a polymeric resin and a filler;

wherein the surface energy of the surface persists within 20% of the second surface energy for at least one month from the treatment of the surface.