Title:
SPECTACLE LENS, MANUFACTURING METHOD OF SPECTACLE LENS AND SPECTACLES
Document Type and Number:
Japanese Patent JP2021006847
Kind Code:
A
Abstract:
To provide a manufacturing method of a novel spectacle lens using 5-(isocyanatomethyl) bicyclo [2.2.1] hept-2-ene.SOLUTION: A manufacturing method of a spectacle lens that is the cured product obtained by curing a polymerizable composition including 5-(isocyanatomethyl) bicyclo [2.2.1] hepto-2-ene and one or more polythiol compounds comprises the steps of: preparing the polymerizable composition in a preparation process including a first mixing stage of mixing 5-(isocyanatomethyl) bicyclo [2.2.1] hepto-2-ene and polythiol compounds under the existence of a first catalyst catalyzing the thiol-ene reaction and a second mixing stage of mixing the mixture obtained in the first mixing stage with a second catalyst catalyzing the thiourethane reaction; and performing curing processing on the polymerizable composition.SELECTED DRAWING: None
Inventors:
IGARI MASAHITO
NAGASAWA TAKUMI
YAMASHITA TERUO
WATANABE TSUYOSHI
NAGASAWA TAKUMI
YAMASHITA TERUO
WATANABE TSUYOSHI
Application Number:
JP2019120667A
Publication Date:
January 21, 2021
Filing Date:
June 28, 2019
Export Citation:
Assignee:
HOYA LENS THAILAND LTD
International Classes:
G02C7/00; C07C265/10; C08G18/38; G02B1/04
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes