公开(公告)号：WO2021124268A1

公开(公告)日：2021-06-24

申请号：PCT/IB2020/062213

申请日：2020-12-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： AUSEN, Ronald W. ,  KOPECKY, William J.

IPC: B29C48/08 ,  B29C48/11 ,  B29C48/30 ,  B29L31/60 ,  B29K105/00 ,  B29K105/04 ,  B29L31/00 ,  B29L7/00 ,  B29L9/00 ,  B29L22/00 ,  B29L24/00 ,  B29K21/00 ,  B29C48/0015 ,  B29C48/0021 ,  B29C48/07 ,  B29C48/19 ,  B29C48/21 ,  B29C48/2566 ,  B29C48/307 ,  B29C48/49 ,  B29C48/705 ,  B29C48/911 ,  B29K2021/003 ,  B29K2105/0097 ,  B29K2105/045 ,  B29K2715/006 ,  B29L2007/00 ,  B29L2009/005 ,  B29L2022/005 ,  B29L2022/007 ,  B29L2024/006 ,  B29L2031/60 ,  B29L2031/756

Abstract: Articles (100, 200, 300) comprising first (101, 201, 301) and second layers (102, 202, 302) each having first and second opposed major surfaces and between the first and second layers a series of first walls (110, 210, 310) having aspect ratios between 1.5 and 5 providing a series of microchannels, and methods for making the same. Embodiment of coextruded articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.