Primer for ophthalmic lenses

Patent metadata

Field	Value
Publication number	US-12461389-B2
Application number	US-202117317070-A
Country	US
Kind code	B2
Filing date	May 11, 2021
Priority date	May 13, 2020
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

An ophthalmic lens including a substrate-independent adhesive primer for joining a functional element to a lens substrate. In particular, the ophthalmic lens includes at least one polymerized lens substrate including at least one thermoset monomer, a functional component including at least one thermoplastic layer, a surface of the at least one thermoplastic layer facing the polymerized lens substrate, and a primer coating deposited onto the surface of the at least one thermoplastic film facing the polymerized lens substrate.

First claim

The invention claimed is:

1 . An ophthalmic lens, comprising:
at least one polymerized lens substrate including at least one thermoset monomer; a functional component including at least one thermoplastic layer, a surface of the at least one thermoplastic layer facing the polymerized lens substrate; and a primer coating deposited onto the surface of the at least one thermoplastic layer facing the polymerized lens substrate; wherein the primer coating includes
at least one first reactive monomer including a reactive acrylic group,
at least one second reactive monomer, and
at least one photoactive catalyst;
wherein the at least one first reactive monomer of the primer coating is an acrylic monomer or a mixture of acrylic monomers; wherein the at least one first reactive monomer of the primer coating is capable of reacting with the lens substrate monomer; and wherein the at least one second reactive monomer of the primer coating is an alkoxysilane.

2 . The ophthalmic lens according to claim 1 , wherein the functional component includes at least one dye selected from the group consisting of a photochromic dye, a dichroic dye, a blue cut dye, an infrared cut dye, an ultraviolet cut dye, a selective wavelength cut dye, a color enhancement dye, a polarizing dye, and a light filter dye.

3 . The ophthalmic lens according to claim 2 , wherein the functional component includes a functional layer having, as the at least one dye, the photochromic dye, and being one of a polyether block amide functional layer or a thermoplastic polyurethane functional layer.

4 . The ophthalmic lens according to claim 2 , wherein the functional component includes a functional layer having, as the at least one dye, the polarizing dye, and being a polyvinyl alcohol functional layer.

5 . The ophthalmic lens according to claim 4 , wherein
the at least one thermoplastic layer of the functional component is two thermoplastic films and the polyvinyl alcohol functional layer is arranged therebetween, each of the two thermoplastic films being selected from the group consisting of a polycarbonate film, a triacetyl cellulose film, and a polyamide film.

6 . The ophthalmic lens according to claim 1 , wherein the at least one polymerized lens substrate is adhered to a convex surface of the functional component.

7 . The ophthalmic lens according to claim 1 , wherein the at least one polymerized lens substrate is adhered to a concave surface of the functional component.

8 . The ophthalmic lens according to claim 1 , wherein the at least one thermoplastic layer of the functional component is a polycarbonate film.

9 . The ophthalmic lens according to claim 1 , wherein the at least one photoactive catalyst is reactive to ultraviolet light.

10 . The ophthalmic lens according to claim 1 , wherein the at least one second reactive monomer of the primer coating includes a reactive group selected from the group consisting of allyl, vinyl, acrylic, thiol, isocyanate, epoxy, and amine.

11 . The ophthalmic lens according to claim 10 , wherein the reactive group is an epoxy.

12 . The ophthalmic lens according to claim 1 , wherein the at least one photoactive catalyst includes a cationic photoinitiator and a free radical photoinitiator.

13 . The ophthalmic lens according to claim 1 , wherein the alkoxysilane is one selected from the group consisting of allyltrimethoxysilane, allyltriethoxysilane, and vinyltrimethoxysilane.

14 . The ophthalmic lens according to claim 1 , wherein the alkoxysilane is one selected from the group consisting of allyltrimethoxysilane, and allyltriethoxysilane.

Assignees

• Essilor Int

Inventors

• Jallouli Aref
• Chiu Hao-Wen
• Fromentin Pierre
• Berzon Ronald A
• Valeri Robert Alan

Classifications

• G02C7/12

  Polarisers · CPC title

• G02C7/024

  Methods of designing ophthalmic lenses · CPC title

• B29D11/00634

  Production of filters · CPC title

• B29D11/00009

  Production of simple or compound lenses · CPC title

• G02B3/00

  Simple or compound lenses · CPC title