公开(公告)号：US20210229012A1

公开(公告)日：2021-07-29

申请号：US17263875

申请日：2019-07-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zhiqun Zhang ,  Edward Keith Willis ,  Jacob J. Thelen ,  Daniel E. Johnson ,  Bryan L. Gerhardt ,  Michael R. Berrigan

IPC: B01D39/16 ,  B01D46/52 ,  B01D46/00 ,  D04H3/033 ,  D04H3/16 ,  D06C15/02 ,  D06C15/08

Abstract: A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.

公开(公告)号：US11839845B2

公开(公告)日：2023-12-12

申请号：US17263875

申请日：2019-07-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zhiqun Zhang ,  Edward Keith Willis ,  Jacob J. Thelen ,  Daniel E. Johnson ,  Bryan L. Gerhardt ,  Michael R. Berrigan

IPC: B01D46/52 ,  B01D39/16 ,  B01D46/00 ,  D04H3/033 ,  D04H3/16 ,  D06C15/02 ,  D06C15/08

CPC classification number: B01D39/1623 ,  B01D46/0001 ,  B01D46/0005 ,  B01D46/0032 ,  B01D46/521 ,  D04H3/033 ,  D04H3/16 ,  D06C15/02 ,  D06C15/08 ,  B01D2239/0208 ,  B01D2239/0435 ,  B01D2239/0618 ,  B01D2239/0627 ,  B01D2239/10 ,  B01D2239/1266 ,  D10B2505/04

Abstract: A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.