公开(公告)号：US20220266181A1

公开(公告)日：2022-08-25

申请号：US17631235

申请日：2020-08-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Himanshu Jasuja ,  Kent B. Willgohs ,  Jacob J. Thelen ,  John D. Stelter ,  Samatha D. Smith ,  Patrick J. Sager ,  William J. Kopecky ,  Bryan L Gerhardt ,  Andrew R. Fox ,  Alexander P. Flage ,  Michael R. Berrigan ,  Zachary J. Becker

IPC: B01D39/16 ,  B01D46/52

Abstract: A single-layer spunbonded air-filtration web including meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 3.0 microns to 9.0 microns. The air-filtration web exhibits a mean flow pore size of from 8.0 to 19 microns and exhibits a ratio of mean flow pore size to pore size range of from 0.55 to 2.5. Also disclosed are methods of making such webs, and methods of using such webs to perform air filtration.

公开(公告)号：US20220266180A1

公开(公告)日：2022-08-25

申请号：US17628683

申请日：2020-08-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John D. Stelter ,  Zachary J. Becker ,  Michael R. Berrigan ,  Alexander P. Flage ,  Andrew R. Fox ,  Bryan L. Gerhardt ,  Himanshu Jasuja ,  William J. Kopecky ,  Patrick J. Sager ,  Samatha D Smith ,  Jacob J. Thelen ,  Kent B. Willgohs

IPC: B01D39/16 ,  D04H3/16 ,  D04H3/14

Abstract: A single-layer spunbonded air-filtration web including meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 3.0 microns to 15 microns. The air-filtration web exhibits a ratio of mean flow pore size to pore size range of from 0.55 to 2.5. Also disclosed are methods of making such webs, and methods of using such webs to perform air filtration.