Molding touch fastener elements
US7807007B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Dec 18, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24017
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Methods of forming a sheet-form product can include: providing a forming surface having a multiplicity of inwardly extending forming cavities; forming a multi-layer sheet in the interior of which is a parting surface defined by materials of limited compatibility, material of the sheet lying on each side of the parting surface having peelable tensile strength; pressing the multi-layer sheet against the forming surface to cause the multi-layer sheet to substantially conform to and fill the cavities; and peeling the multi-layer sheet apart at the parting surface, whereby material directly engaging the forming surface defines a sheet-form member having a multiplicity of hollow formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.