Composite membrane and method for producing a composite membrane
US10571970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2017 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Jan 21, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/029
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a composite for an acoustic component having at least one carrier layer and an electrospun membrane which is arranged on the at least one carrier layer, wherein the electrospun membrane is formed of superimposed fibers while a pore structure is being designed. The pore structure of the composite is designed such that the composite has a water column of at least 1 m and an air permeability of 5 L/m2*s. Furthermore, the invention relates to a method for producing a composite for an acoustic component, in which a carrier layer is provided and on the carrier layer a membrane is designed according to the electrospinning method, wherein the membrane is produced of superimposed fibers with a defined pore structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.