Electrostatic liquid spray application of coatings with supercritical fluids as diluents and spraying from an orifice
US5211342A · kind A · utility
50Cited by
22References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1992 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Jan 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electrostatic liquid coatings application process and apparatus is provided in which supercritical fluids, such as supercritical carbon dioxide fluid, are used to reduce to application consistency viscous coatings compositions to allow for their application as liquid sprays. The coatings compositions are sprayed by passing the composition under pressure through an orifice into the environment of the substrate. The liquid spray is electrically charged by applying a high electrical voltage relative to the substrate and electric current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.