Apparatus for coating the inside surface of metal containers with polyolefin materials
US5630875A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Mar 31, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49885
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Apparatus for coating the interior surfaces of metal containers by electrostatic deposition of specific polyolefin compositions on the separate parts of the containers prior to assembly of the containers and melting of the polyolefin compositions, which includes PA1 a first spray booth containing at least one electrostatic powder spraying device for spraying a polyolefin composition powder, the first spray booth being adapted for spraying the bottoms and lids of the containers, PA1 means for conveying the bottoms and lids of containers in the first spray booth, PA1 a second spray booth containing at least one electrostatic powder spraying device for spraying a polyolefin composition powder, the second spray booth being adapted for spraying the bodies of the containers, PA1 means for conveying the bodies of containers in the second spray booth, and PA1 at least one electrostatic generator connected to the spraying devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.