Coated molds and related methods and components
US9211658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jul 25, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/44
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Molds that have coated mold surfaces, as well as methods and components associated with such molds, are provided. The mold surface coatings may be formed of a polymeric material, such as polytetrafluoroethylene (PTFE), and may be very thin (e.g., 50 microns or less). The coatings may facilitate the release of articles formed in the mold and may also reduce, or eliminate, the build up of contaminants on mold surfaces during processing which, thus, increases mold lifetime. The coatings may be formed in a chemical vapor deposition process with process conditions selected to enable formation of uniform, conformal coatings, even on mold features having small dimensions and/or high aspect ratios. The coatings are particularly well suited to be used in connection with rubber tires molds, though also can be used in other types of molds and articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.