Weathering test apparatus
US6709631B2 · kind B2 · utility
34Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Jul 24, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/206664
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A weathering test method comprising making active oxygen and light simultaneously act on a test piece, a weathering test method comprising successive and/or alternate steps of making active oxygen and light simultaneously act on a test piece and making at least one of light, oxygen, and water to act on the test piece, and apparatus for carrying out the methods are disclosed. In evaluating weatherability of organic materials, articles made of organic materials or articles coated with organic materials, the methods and apparatus achieve acceleration of deterioration of test pieces to greatly reduce the testing time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.