| PATENT ASSIGNEE'S COUNTRY | UK |
| UPDATE | 10.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Process for prepg an entity selected from - An optical filter comprising a coloured cross-linked polyme ric coating on a transparent substrate - Transparent, coloured cross-linked polymeric coating on a substrate - The process comprising applying to substrate by printing process a mixt comprising: One or more cross-linkable po lymer precursor(s) for the crosslinked polymer of the poly meric coating; & - One or more dye(s) each capable of forming a covalent bond with group(s) of at least one of the polymeric precur sor(s) via one or more heterocyclic NH group(s) in a Het part of the dye or via one or more substituent group(s) each of which is attached to the dye either directly or via optiona lly substituted alkyl or aryl groups; where the substituents are selected from: -OH; -NH2; -NHalkyl; -SH; -COOH; -COOalkyl; epoxy; -NHCOalkenyl; & -COalkenyl; & there after curing the mixt |
| PATENT PHOTOCOPY | Available on request |
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