Application of liquid coating material
US4313968A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1979 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Nov 14, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of applying a coating composition, which preferably has a high solids content, to a workpiece. The method is one wherein a coating composition is atomized into liquid particles, an electrical charge is imparted with an induction charging electrode means on the particles substantially simultaneously with their formation, and the charged particles are directed to an electrically-receptive workpiece, and includes the improvement comprising heating the coating composition to adjust its conductivity and to enhance the induction charging of the particles formed from the heated coating composition. In a preferred embodiment, the charged particles are cooled before they reach the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.