Siloxane based coating composition having excellent dyeabililty abrasion resistance, glossiness and transparency, and a preparation method thereof, and an optical lens coated by said coating composition
US8303704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2007 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A siloxane based coating composition having excellent dyeability, abrasion resistance, glossiness and transparency, a preparation method thereof, and an optical lens coated by the coating composition are suggested. The siloxane based coating composition includes organo silane compound, inorganic oxide (H-index filler), solvent and a dyeing improving material. The dyeing improving material adopts nitric acid, hydrochloric acid, phosphoric acid, sodium nitrate, potassium nitrate, silver nitrate, or the like. The siloxane based coating composition shows excellent dyeability owing to the dyeing improving material, excellent abrasion resistance owing to the organo silane compound, and excellent glossiness and transparency, so it may be applied as a coating film on a surface of a plastic lens such as optical lens, industrial safety lens and leisure-purpose goggle that require high transparency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.