US 12,129,367 B2
Method of 3D printing, and resulting article having porous structure
Alessandro Bernardi, Pittsburgh, PA (US); Peter Dias, Pittsburgh, PA (US); Barbara Iria Mano, Sao Paulo—SP (BR); and Juliana Breda Soares, Sao Paulo—SP (BR)
Assigned to Braskem America, Inc., Philadelphia, PA (US)
Filed by Braskem America, Inc., Philadelphia, PA (US)
Filed on Jun. 6, 2023, as Appl. No. 18/329,633.
Application 18/329,633 is a division of application No. 16/954,829, granted, now 11,718,735, previously published as PCT/US2018/066990, filed on Dec. 21, 2018.
Claims priority of provisional application 62/609,797, filed on Dec. 22, 2017.
Prior Publication US 2023/0312892 A1, Oct. 5, 2023
Int. Cl. C08L 23/06 (2006.01); B29C 64/153 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B29K 23/00 (2006.01)
CPC C08L 23/06 (2013.01) [B33Y 70/00 (2014.12); B29C 64/153 (2017.08); B29K 2023/065 (2013.01); B29K 2023/0683 (2013.01); B33Y 10/00 (2014.12); C08L 2205/025 (2013.01); C08L 2207/062 (2013.01); C08L 2207/068 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An article having porous structure, comprising
from 50% to 99.9% by weight of a base polymer in the form of the article, the base polymer comprising a polyolefin; and
from 0.1% to 50% by weight of a glue polymer in the form of the article, wherein the glue polymer, prior to formation, has a particle size of less than or equal to 250 microns;
wherein the article has a porosity in a range of from about 5% to about 60% by volume, and the article has pores having an average size in a range of from about 0.1 micron to about 70 microns.