Nonwoven composite
US10611116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2018 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Aug 18, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B1/8409
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The application relates to a nonwoven composite containing a plurality of solid regions and a plurality of porous regions. The solid and porous regions form a repeating pattern on the surface of the composite. The solid regions contain a solid region nonwoven layer, an optional solid region polymer-fiber infused layer, and a solid region cap layer. The solid region nonwoven layer contains a plurality of first staple fibers and less than about 5% by volume of a first polymer. The solid region cap layer contains the first polymer and less than about 5% by volume of the first staple fibers. The porous regions contain a porous region nonwoven layer and a porous region polymer-fiber infused layer. The porous region nonwoven layer contains a plurality of the first staple fibers and less than about 5% by volume of a first polymer. The porous region polymer-fiber infused layer contains a plurality of pores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.