US 11,879,043 B2
Coated poly-olefins
John M. Riviello, Los Gatos, CA (US); and Christopher A. Pohl, Union City, CA (US)
Assigned to Dionex Corporation, Sunnyvale, CA (US)
Filed by DIONEX CORPORATION, Sunnyvale, CA (US)
Filed on Dec. 22, 2021, as Appl. No. 17/559,830.
Claims priority of provisional application 63/170,950, filed on Apr. 5, 2021.
Prior Publication US 2022/0315720 A1, Oct. 6, 2022
Int. Cl. C08J 7/04 (2020.01)
CPC C08J 7/0427 (2020.01) [C08J 2323/06 (2013.01); C08J 2351/00 (2013.01); C08J 2425/02 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A coated substrate, comprising:
a polyolefin substrate having a functional polymer layer disposed thereon;
wherein the polyolefin substrate has a flow through pore structure with a pore size ranging from about 5 microns to about 250 microns; and
the functional polymer layer having a thickness ranging from about 1 micron to about 20 microns, and a layer pore structure having a pore size ranging from about 1 nm to about 100 nm,
wherein the functional polymer layer is not covalently bound to the polyolefin, and the functional polymer layer has a surface area of from about 25 m2/g to about 800 m2/g,
wherein the functional polymer layer is formed from one or more porogen, one or more monomer, and a polymerization initiator, and the monomer comprises styrene, divinylbenzene, vinylbenzylchloride, acrylates, methacrylates, ethylvinylbenzene, derivatives thereof, and combinations thereof.