Methods of making fibrous structures with shaped polymer particles
US11207874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jul 12, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2555/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of forming a fibrous structure including: providing a first textured substrate that has a first side with first discrete regions and a first continuous region extending between the first discrete regions, and a second side comprising a plurality of first discrete portions corresponding to the first discrete regions and a first continuous portion corresponding to the first continuous region; passing the first textured substrate across a nozzle of a slot coat header, wherein a heated polymer is dispensed from the nozzle; depositing the heated polymer onto one of the first or the second side of the first textured substrate to form a plurality of first polymer particles, wherein the heated polymer is substantially deposited on an area of the first textured substrate that contacts the nozzle such that at least a section of each of the first polymer particles defines a raised edge; and joining the first textured substrate to a second substrate to form the fibrous structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.