Method for monitoring coating adhesion propensity based on surface morphology
US5878153A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1996 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Sep 9, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/88
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring process parameters in a multiple step process for an article molded from a plastic material containing at least two constituents to determine propensity for adhesion of a subsequently applied coating includes imaging at least one region of the article to examine surface morphology and analyzing the surface morphology to identify one of the constituents. In a preferred embodiment, the method is applied to monitor a manufacturing process for a molded plastic bumper to determine adhesion propensity of a subsequently applied adhesion promoter or paint based on surface morphology of the component. Analysis of the surface morphology includes identifying the presence of rubber globules near the surface layer or skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.