Title:
レンズ基材用重合性組成物の製造方法
Document Type and Number:
Japanese Patent JP6622626
Kind Code:
B2
Abstract:
Provided is a polymerizable composition for an optical material including (A) a bifunctional amine having two secondary amino groups, (B) a bifunctional thiol having two mercapto groups, and (C) a bifunctional isocyanate having two isocyanato groups, in which the ratio ((a+b)/c) of the total molar number (a+b) of the molar number a of amino groups in the amine (A) and the molar number b of mercapto groups in the thiol (B) with respect to the molar number c of isocyanato groups in the isocyanate (C) is in the range of 0.85 to 1.15, and the ratio (a/c) of the molar number a of amino groups in the amine (A) with respect to the molar number c of isocyanato groups in the isocyanate (C) is in the range of 0.10 to 0.60.
Inventors:
Nobuo Kawado
Application Number:
JP2016037691A
Publication Date:
December 18, 2019
Filing Date:
February 29, 2016
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08G18/32; C08G18/38; C08G18/72; G02B1/04; G02C7/02
Domestic Patent References:
| JP2003514934A |
Attorney, Agent or Firm:
Shinji Hayami