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CA-3139268-C - SPECTACLE LENS, COMPOSITION

CA3139268CCA 3139268 CCA3139268 CCA 3139268CCA-3139268-C

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.

Inventors

  • Yuka IGAMI

Assignees

  • NIKON-ESSILOR CO., LTD.

Dates

Publication Date
20260505
Application Date
20200430
Priority Date
20190510

Claims (11)

  1. 69 CLAIMS: 1. A spectacle lens comprising: a spectacle lens base; and a hard coat layer, wherein: the hard coat layer contains at least one conductive filler selected from the group consisting of ionic liquidcoated nanowires and ionic liquid-coated nanoparticles, the ionic liquid-coated nanowires contain metal nanowires, composed of a metal, with an ionic liquid coated thereon, the ionic liquid-coated nanoparticles contain metal nanoparticles, composed of a metal, with the ionic liquid coated thereon, the hard coat layer is formed by using a hard coat layer-forming composition containing a polymerizable monomer and the conductive filler, the metal nanowires having a ratio of L/d of 10 to 100000, wherein Lis average length and dis average diameter, and the metal nanoparticles having a particulate shape with an average particle size of 1 to 500 nm.
  2. 2. The spectacle lens according to claim 1, wherein a primer layer is included between the spectacle lens base and the hard coat layer. Date Re9ue/Date Received 2023-05-02 88992140 70
  3. 3. The spectacle lens according to claim 2, wherein the primer layer also contains at least one conductive filler selected from the group consisting of ionic liquid-coated nanowires and ionic liquid-coated nanoparticles.
  4. 4. The spectacle lens according to any one of claims 1 to 3, wherein the ionic liquid contains at least one selected from the group consisting of an ammonium salt, an imidazolium salt, a pyridinium salt, a pyrrolidinium salt, a phosphonium salt, and a sulfonium salt.
  5. 5. The spectacle lens according to any one of claims 1 to 4, wherein the metal contained in the metal nanoparticles or the metal nanowire contains at least one selected from the group consisting of silver, gold, copper, nickel, and platinum.
  6. 6. The spectacle lens according to claim 5, wherein the polymerizable monomer contains (meth)acrylate having at least one group selected from the group consisting of a phosphate group and a sulfonate group.
  7. 7. The spectacle lens according to claim 5 or 6, wherein the polymerizable monomer contains silsesquioxane having a radical polymerizable group.
  8. 8. The spectacle lens according to any one of claims 1 to 7, further comprising an antireflection film disposed on the hard coat layer. Date Re9ue/Date Received 2023-05-02 88992140 71
  9. 9. A composition comprising: at least one conductive filler selected from the group consisting of ionic liquid-coated nanowires and ionic liquidcoated nanoparticles; and a polymerizable monomer; wherein: the ionic liquid-coated nanowires contain metal nanowires, composed of a metal, with an ionic liquid coated thereon, the ionic liquid-coated nanoparticles contain metal nanoparticles, composed of a metal, with the ionic liquid coated thereon, the metal nanowires having a ratio of L/d of 10 to 100000, wherein Lis average length and dis average diameter, and the metal nanoparticles having a particulate shape with an average particle size of 1 to 500 nm.
  10. 10. The composition according to claim 9, wherein the polymerizable monomer contains (meth)acrylate having at least one group selected from the group consisting of a phosphate group and a sulfonate group.
  11. 11. The composition according to claim 9 or 10, wherein the polymerizable monomer contains silsesquioxane having a radical polymerizable group. Date Re9ue/Date Received 2023-05-02

Description

1 DESCRIPTION TITLE OF INVENTION: SPECTACLE LENS, COMPOSITION TECHNICAL FIELD [0001] The present disclosure relates to a spectacle lens and a composition. BACKGROUND ART [0002] A curable resin composition containing a silsesquioxane compound having a radical polymerizable group is useful as a hard coating agent (for example, Patent Literature 1). CITATION LIST PATENT LITERATURE [0003] Patent Literature 1: JP 2015-224294 A SUMMARY OF INVENTION [0004] The present disclosure relates to a spectacle lens including: a spectacle lens base; and a hard coat layer, wherein when a primer layer is included between the spectacle lens base and the hard coat layer, at least one of the primer layer and the hard coat layer contains at least one conductive filler selected from the group Date re9ue I Date received 2021-11-04 88992140 2 consisting of an ionic liquid-coated nanowire containing a metal nanowire and an ionic liquid coating the metal nanowire, and ionic liquid-coated nanoparticles containing metal nanoparticles and an ionic liquid coating the metal nanoparticles, and when the primer layer is not included between the spectacle lens base and the hard coat layer, the hard coat layer contains at least one conductive filler selected from the group consisting of the ionic liquid-coated nanowire and the ionic liquid-coated nanoparticles. [ 00 04a] The present disclosure also relates to a spectacle lens comprising: a spectacle lens base; and a hard coat layer, wherein: the hard coat layer contains at least one conductive filler selected from the group consisting of ionic liquid-coated nanowires and ionic liquid-coated nanoparticles, the ionic liquid-coated nanowires contain metal nanowires, composed of a metal, with an ionic liquid coated thereon, the ionic liquidcoated nanoparticles contain metal nanoparticles, composed of a metal, with the ionic liquid coated thereon, the hard coat layer is formed by using a hard coat layer-forming composition containing a polymerizable monomer and the conductive filler, the metal nanowires having a ratio of L/d of 10 to 100000, wherein Lis average length and dis average diameter, and the metal nanoparticles having a particulate shape with an average particle size of 1 to 500 nm. Date Re9ue/Date Received 2023-05-02 88992140 2a [0004b] The present disclosure also relates to a composition comprising: at least one conductive filler selected from the group consisting of ionic liquid-coated nanowires and ionic liquid-coated nanoparticles; and a polymerizable monomer; wherein: the ionic liquid-coated nanowires contain metal nanowires, composed of a metal, with an ionic liquid coated thereon, the ionic liquid-coated nanoparticles contain metal nanoparticles, composed of a metal, with the ionic liquid coated thereon, the metal nanowires having a ratio of L/d of 10 to 100000, wherein Lis average length and dis average diameter, and the metal nanoparticles having a particulate shape with an average particle size of 1 to 500 nm. BRIEF DESCRIPTION OF DRAWINGS [0005] [FIG. 1] FIG. 1 is a cross-sectional view of a spectacle lens according to a first embodiment. [FIG. 2] FIG. 2 is a cross-sectional view of a spectacle lens according to a second embodiment. DESCRIPTION OF EMBODIMENTS [0006] Hereinafter, a spectacle lens of the present embodiment will be described in detail. As the spectacle lens, a spectacle lens having low surface resistivity is desired. In the spectacle lens of the present embodiment, the above characteristic is obtained. As described Date Re9ue/Date Received 2023-05-02 88992140 2b later, when a conductive filler described later is contained in a hard coat layer in the Date Re9ue/Date Received 2023-05-02 3 spectacle lens, scratch resistance when an antireflection film is disposed on the hard coat layer is also excellent. Adhesion between layers adjacent to each other in the spectacle lens is excellent. In the present specification, the term ~to" is used as the meaning including numerical values described before and after the term as the lower and upper limits. [0007] <First Embodiment> FIG. 1 is a cross sectional view of a spectacle lens according to a first embodiment. A spectacle lens l0A shown in FIG. 1 includes a spectacle lens base 12 and a hard coat layer 14A disposed on each of both surfaces of the spectacle lens base 12. In FIG. 1, the hard coat layer 14A is disposed in direct contact with the spectacle lens base 12, but the invention is not limited to this form. Another layer (for example, a primer layer) may be disposed between the spectacle lens base 12 and the hard coat layer 14A as described later. That is, the hard coat layer 14A may be directly disposed on the spectacle lens base 12, or may be indirectly disposed on the spectacle lens base 12 with another layer interposed therebetween. In FIG. 1, the hard coat layer 14A is disposed on Date re9ue I Date received 2021-11-04 4 each of both the surfaces of the spectacle lens base 12, but the hard coat layer 14A may be disp