Patent · US Active

Filter media with a multi-layer structure

US10155187B2 · kind B2 · utility

5Cited by

128References

22Claims

0Family size

Assignee

Hollingsworth & Vose Company · US

Inventors

John A. Wertz · Hollis, US
Douglas M. Guimond · Pepperell, US

Key dates

Filing date	Dec 30, 2015
Grant date	Dec 18, 2018
Priority date	—
Expiry date	Dec 30, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/695
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Filter media are described. The filter media may include multiple layers. In some embodiments, the filter media include a nanofiber layer adhered to another layer. In some embodiments, the layer to which the nanofiber layer is adhered is formed of multiple fiber types (e.g., fibers that give rise to structures having different air permeabilities and/or pressure drops). In some embodiments, the nanofiber layer is adhered to a single-phase or a multi-phase layer. In some embodiments, the nanofiber layer is manufactured from a meltblown process. The filter media may be designed to have advantageous properties including, in some cases, a high dust particle capture efficiency and/or a high dust holding capacity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.