Process of pretreatment prior to paint coating
US4724057A · kind A · utility
7Cited by
7References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 25, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Mar 25, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2023/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The surface of a product molded of polyolefin is washed with a fluorine-containing organic solvent such as CCl.sub.2 F--CCl.sub.2 F or CCl.sub.2 F--CClF.sub.2 and, thereafter, the product surface is treated with a plasma. Since the product surface is washed with an organic solvent containing fluorine, wastewater and process operation can be controlled with relative ease. A painted product pretreated by the process of the invention has a high peel strength and water resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.