Coating composition for optical parts thin film layer made of it and optical part comprising
US6248431A · kind A · utility
3Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31667
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides optical parts having good impact resistance, good adhesiveness between the substrate and a thin film layer coating formed thereon, good scratch resistance and good antireflection capabilities. The thin film layer coating composition comprises (1) a dithian ring containing sulfur compound and/or a benzene ring containing sulfur compound, and (2) a polyfunctional thiol compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.