Can inner surface coating method
US11311906B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Jan 6, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2701/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coating method includes a first step for spraying, onto an inner area of an opening part of a cylindrical body having a bottom and arranged horizontally, a first coating material of synthetic resin containing non-volatile components while rotating the cylindrical body around a central axis thereof. After the first step, a second step is performed for spraying, onto an inner area of a barrel part of the cylindrical body, a second coating material of synthetic resin containing a lower proportion of non-volatile components than that of the first coating material while continuing to rotate the cylindrical body. After the second step is performed and before the volatile components of the second coating material vaporizes, a third step is performed in which the rotation of the cylindrical body is stopped, the cylindrical body is placed vertically, and the volatile components of the second coating material are vaporized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.