公开(公告)号：US20210317336A1

公开(公告)日：2021-10-14

申请号：US17358338

申请日：2021-06-25

Applicant: NIKON-ESSILOR CO., LTD.

Inventor： Yuka IGAMI

IPC: C09D183/08 ,  C09D7/63 ,  C09D7/61 ,  B29D11/00 ,  G02C7/02

Abstract: The present invention provides a composition for forming a hard coat layer, which is capable of forming a hard coat layer that exhibits excellent adhesion to an adjacent layer, while having excellent hardness. A composition for forming a hard coat layer according to the present invention contains: a (meth)acrylate which has at least one group that is selected from the group consisting of a phosphoric acid group and a sulfonic acid group; a silsequioxane which has a radically polymerizable group; and metal oxide particles.

公开(公告)号：US20220244432A1

公开(公告)日：2022-08-04

申请号：US17610253

申请日：2020-04-30

Applicant: NIKON-ESSILOR CO.,LTD.

Inventor： Yuka IGAMI

IPC: G02B1/14 ,  G02B1/04 ,  C09D133/10 ,  G02B1/11 ,  C09D7/61 ,  C09D7/63

Abstract: The present invention provides a spectacle lens having low surface resistivity. This spectacle lens includes a spectacle lens base and a hard coat layer. When a primer layer is included between the spectacle lens base material and the hard coat layer, the primer layer and/or the hard coat layer contains at least one type of electroconductive filler selected from the group consisting of ionic liquid-coated nanowires containing metal nanowires and an ionic liquid coating the metal nanowire, and ionic liquid-coated nanoparticles containing metal nanoparticles and an ionic liquid coating the metal nanoparticles. When the primer layer is not included between the spectacle lens base material and the hard coat layer, the hard coat layer contains the at least one type of electroconductive filler selected from the group consisting of the ionic liquid-coated nanowires and ionic liquid-coated nanoparticles.