Abrasion-resistant coating composition, process for making such coating composition and article coated therewith
US6808812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2001 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Feb 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The coating composition according to the invention comprises:(A) a component which is the reaction product with oxalic acid of at least one organometallic compound of formula:R1y—M(OR)x-y  (I)wherein, M is a metal R is H or an alkyl radical, R1 is a chelating ligand, x is the valency of the metal, y is an integer at least equal to 1 and x-y is at least equal to 1; and(B) at least one organoalkoxysilane of formula:R3nSi(OR2)4−n  (II)wherein, R2 is an alkyl radical, R3 is an epoxidized alkyl group and n is an integer from 1 to 3 or a mixture of the organoalkoxysilane of formula (II) with an alkoxysilane of formula (II′)R′n′Si(OR″)4−n′  (II′)wherein n′ is an integer from 0 to 3,R″ is H, an alkyl radical or an alkoxyalkyl radical, andR′ is a vinyl, (meth)acryl, aromatic, cyclic or aliphatic alkyl radical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.