公开(公告)号：US20240293248A1

公开(公告)日：2024-09-05

申请号：US18571371

申请日：2022-06-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Audrey A. Sherman ,  Thomas R. Corrigan ,  Guido Hitschmann ,  Michael W.T. Mansholt ,  Nicholas K. Lee

IPC: A61F5/30 ,  B32B3/26 ,  B32B5/02 ,  B32B5/18 ,  B32B5/24 ,  B32B5/32 ,  B32B7/02 ,  B32B7/12

CPC classification number: A61F5/30 ,  B32B3/266 ,  B32B5/02 ,  B32B5/022 ,  B32B5/18 ,  B32B5/245 ,  B32B5/32 ,  B32B7/02 ,  B32B7/12 ,  B32B2262/0261 ,  B32B2266/0278 ,  B32B2307/558 ,  B32B2307/724 ,  B32B2535/00

Abstract: Cushioning articles include a layer with a plurality of cuts arrayed in a pattern. The cuts are gaps and the gaps do not form apertures allowing one to see through the layer when the layer is in an unstressed state, but in a stressed state, at least some of the cuts become gaps that are perforations through the layer. In the stressed state the layer expands to form the cushioning article. The cushioning article may be a multi-layer article with another layer that is contacted to the stressed layer in the stressed state to hold the layer in a stressed state.

公开(公告)号：US20240269494A1

公开(公告)日：2024-08-15

申请号：US18681792

申请日：2022-08-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nicholas K. Lee ,  Liyun Ren ,  Tanya L. Beckwith ,  Gina M. Daveloose ,  Jeffrey G. Linert ,  Jacob T. Lusson ,  John D. Stelter ,  Jacob J. Thelen

IPC: A62B23/02 ,  B01D39/16

CPC classification number: A62B23/02 ,  B01D39/163 ,  B01D2239/0435 ,  B01D2239/0627 ,  B01D2239/065

Abstract: Provided are face coverings that include a cover panel made from a cover panel material, a filter made from a filtration media adjacent the cover panel, and a retaining system for securing the face covering to a wearer's face. The face coverings can further include a gasket comprising gasket material connected to a perimeter of the cover panel and configured to contact to a wearer's face. The pressure drop across a combination of the cover panel material and the filtration media is from 45% to 75% of the pressure drop across the gasket material, enabling filtration of airborne contaminants allowing for reduced retaining tension and improved comfort to the wearer.

公开(公告)号：US20230017683A1

公开(公告)日：2023-01-19

申请号：US17785983

申请日：2020-12-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Thomas R. Corrigan ,  Patrick R. Fleming ,  Anne C.F. Gold ,  Silvia G. Guttmann ,  Nicholas K. Lee ,  Dylan T. Cosgrove ,  Delony L. Langer-Anderson ,  Lisa M. Miller ,  Manoj Nirmal

IPC: B65D81/03 ,  B65D81/05 ,  B65B11/00 ,  B31D5/00

Abstract: The present disclosure relates generally to tension-activated, expanding articles, films, and sheets including a multi-slit pattern. In some embodiments, these articles, films, and/or sheets are used as cushioning films and/or packaging materials. The present disclosure also relates to methods of making and using these tension-activated, expanding articles, films, and sheets.