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US 7,067,565 B2Granted
Epoxy/acrylate based primer coating compositions and their use in the optical field
AssigneeEssilor International (Compagnie Generale d'Optique)
InventorsRobert A. Valeri, Kimberly D. Anderson, Sidney S. White
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Abstract
The invention relates to primer coating compositions exhibiting very good adhesion properties on a large variety of substrates, in particular plastic substrates such as ophthalmic lenses made of organic glasses and which also impart good impact resistance properties to the thus coated substrates. The invention also concerns substrates coated with these primer coating compositions as well as a method for making such coated substrates.
Claims18
An impact-resistant primer coating composition comprising:
- at least one non-hydrophilic acrylate monomer;
- at least one epoxy monomer;
- and
- at least one photoactivable cationic catalyst,
- wherein said at least one non-hydrophilic acrylate monomer comprises a mixture of:
- (a) at least one acrylate monomer selected from the group consisting of mono and diacrylate monomers, and
- (b) at least one acrylate monomer selected from the group consisting of tri to hexaacrylate monomers.
4 more elements
Dependencies are inferred from the claim text.