Title:
ANTIFOGGING PLASTIC SPECTACLE LENS
Document Type and Number:
Japanese Patent JP2023055531
Kind Code:
A
Abstract:
To provide an antifogging plastic spectacle lens with improved scratch resistance and slidability.SOLUTION: An antifogging plastic spectacle lens 1 includes a water absorption layer 4 obtained from compositions containing: (meth) acrylic resin (A) containing constitutional units derived from specific monomers (a-1) to (a-4) at respective specific ratios; polyfunctional isocyanate compound (B); and epoxide (C) which is an organic compound containing a plurality of epoxy groups. With respect to total constitutional unit 100 mass%, the (meth) acrylic resin (A) has a ratio of the constitutional unit derived from the monomer (a-1) of 20 mass% or more and 65 mass% or less, a ratio of the constitutional unit derived from the monomer (a-2) of 10 mass% or more and 40 mass% or less, and a ratio of the constitutional unit derived from the monomer (a-4) of 1 mass% or more and 10 mass% or less.SELECTED DRAWING: Figure 1
Inventors:
SUZUKI HIROKO
Application Number:
JP2021164985A
Publication Date:
April 18, 2023
Filing Date:
October 06, 2021
Export Citation:
Assignee:
TOKAI KOGAKU KK
International Classes:
G02C7/00; C09K3/18; G02B1/10
Attorney, Agent or Firm:
Ishida Kiki
Kiyotaka Sonoda
Kiyotaka Sonoda
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