US 10,889,030 B2
Membrane surface hydrophobicity through electro-hydrodynamic film patterning
Charles-Francois de Lannoy, Hamilton (CA); and Corie Lynn Cobb, Mountain View, CA (US)
Assigned to PALO ALTO RESEARCH CENTER INCORPORATED, Palo Alto, CA (US)
Filed by Palo Alto Research Center Incorporated, Palo Alto, CA (US)
Filed on Jun. 8, 2020, as Appl. No. 16/895,822.
Application 16/895,822 is a division of application No. 15/388,851, filed on Dec. 22, 2016, granted, now 10,710,283.
Prior Publication US 2020/0298454 A1, Sep. 24, 2020
Int. Cl. B29C 41/38 (2006.01); B01D 69/02 (2006.01); B29C 41/28 (2006.01); B29C 59/10 (2006.01); B01D 67/00 (2006.01); B29L 31/00 (2006.01); B01D 61/36 (2006.01); B01D 61/02 (2006.01)
CPC B29C 41/38 (2013.01) [B01D 67/0034 (2013.01); B01D 69/02 (2013.01); B29C 41/28 (2013.01); B29C 59/10 (2013.01); B01D 61/02 (2013.01); B01D 61/362 (2013.01); B01D 61/364 (2013.01); B01D 67/0009 (2013.01); B01D 2323/35 (2013.01); B01D 2323/42 (2013.01); B01D 2325/08 (2013.01); B01D 2325/38 (2013.01); B29K 2995/0093 (2013.01); B29L 2031/755 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of creating a hydrophobic polymer membrane surface, comprising:
depositing a polymer material onto a heated carrier;
using the heated carrier, transporting the polymer material past an electrode field generator;
generating an electric field adjacent the carrier;
using the electric field to form a pattern in the polymer material to form a patterned polymer membrane;
rinsing the patterned polymer membrane in a first bath; and
setting the pattern into the patterned polymer membrane in a second bath.