Laminated ophthalmic lens

Stock material or miscellaneous articles – Composite – Of epoxy ether

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156 99, 156245, 156327, 264 17, 4284242, 428500, B32B 2738

Patent

active

053126890

ABSTRACT:
An improved, laminated, ophthalmic lens structure, and method of producing the structure. The structure comprises two adjacent layers of dissimilar, organic plastic materials, either or both of which contain matter that tends to migrate. The improvement comprises a barrier layer that is intermediate the adjacent organic plastic layers; that is impermeable to migrating matter; and that is composed of a polyolefin polymeric material modified by the presence of acid or anhydride functional groups.

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