公开(公告)号：US12012680B2

公开(公告)日：2024-06-18

申请号：US16607258

申请日：2017-09-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jinzhang You ,  Jonathan H. Alexander ,  Michael R. Berrigan ,  Akira Ito ,  Xiaojun Su ,  Qinrong Wu ,  Liyun Ren ,  Thomas P. Hanschen ,  Daniel J. Zillig ,  Sachin Talwar

IPC: D04H1/56 ,  D04H1/4291 ,  D04H3/14 ,  D04H3/16

CPC classification number: D04H1/56 ,  D04H1/4291 ,  D04H3/14 ,  D04H3/16 ,  B01D2239/0622 ,  B01D2239/1233 ,  B32B2262/0253 ,  B32B2262/0276 ,  B32B2307/718

Abstract: The provided articles, assemblies, and methods use a non-woven fibrous web (50) having one or more layers (60) that are densified in situ to provide a layer that is densified relative to one or more adjacent layers, collectively within a unitary non-woven construction. The non-woven web (50) can be made from fibers having a composition and/or structure that resist shrinkage induced by polymer crystallization when subjected to high temperatures. Advantageously, the provided non-woven webs (50) can be molded to form a three-dimensional shaped article that displays dimensional stability.