公开(公告)号：US11701623B2

公开(公告)日：2023-07-18

申请号：US17320973

申请日：2021-05-14

Applicant: ENTEGRIS, INC.

Inventor： Dongzhu Wu ,  Kwok Shun Cheng ,  Rajnikant B. Patel ,  Tony Yu ,  Puth Proeung ,  Maybelle Woo

IPC: B01D67/00 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26

CPC classification number: B01D69/122 ,  B01D67/0002 ,  B01D69/02 ,  B01D71/26 ,  B01D2323/08 ,  B01D2325/04

Abstract: The present disclosure relates to a composite membrane formed by lamination of two or more separate porous polymeric layers, as well as to a method and system for lamination. Advantageously, the resulting composite is a single layer, being difficult to separate into its component layers, yet effectively maintains the filtering capabilities of the component layers when not laminated.