Method for improving the paintability of objects fashioned from polyamide and polyolefin blends
US5419861A · kind A · utility
4Cited by
6References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | May 23, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2077/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for improving the paintability of a shaped object of which at least the outer portion is made of a polyamide/polyolefin alloy, wherein an electrical discharge is made to act on a gas in order to create a cold plasma type reactive gas stream, and the shaped object is brought into contact with the reactive gas stream thereby produced and with an oxygen source in order to oxidize the surface of the shaped object. The method is particularly useful for treating trim for motor vehicles as well as items of garden furniture prior to painting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.