Process for treating plastics with alkaline permanganate solutions
US4859300A · kind A · utility
13Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1989 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Jan 9, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0796
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The permanganate process for treating plastics, e.g., printed circuit boards, to enhance the adhesion of metal plating to the plastic is improved by employing electrolysis to either maintain a certain permanganate level in the operating bath or to regenerate a spent or used bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.