Contact surface having a composite release layer and method of making
US10161082B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2016 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jul 3, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A processing roll has a release layer that includes a porous rigid layer and polymer composite. The porous rigid layer may be a thermally sprayed metal that has discrete metal portions or a network of contiguous metal portions. Discrete metal from a flame sprayer may attached to each other on a contact surface to form the rigid layer. The polymer composite at least partially fills the spaces between the metal portions. The polymer composite may comprise a particulate filler, such as silica or glass beads. The release layer has good durability as the exposed surface contains both a portion that is the rigid material and a portion that is the polymer composite. This configuration enables very high release and long term durability even as the release layer wears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.