公开(公告)号：US20170226268A1

公开(公告)日：2017-08-10

申请号：US15515167

申请日：2015-09-09

Applicant: HOYA LENS THAILAND LTD

Inventor： Takayuki IIJIMA ,  Masahisa KOUSAKA

IPC: C08G18/38 ,  G02B1/04 ,  G02C7/02 ,  C08G18/72

CPC classification number: C08G18/38 ,  C08G18/246 ,  C08G18/3857 ,  C08G18/3876 ,  C08G18/72 ,  C08G18/722 ,  C08G18/73 ,  C08G18/753 ,  C08G18/755 ,  C08G18/758 ,  C08G2120/00 ,  G02B1/04 ,  G02C7/02

Abstract: A polymerizable composition which can suppress generation of turbidity, optical distortion, and striae in a transparent resin obtained therefrom, a transparent resin obtained from the polymerizable composition, an optical material containing the transparent resin, a plastic lens containing the optical material, and a method for manufacturing the transparent resin. The present disclosure is a polymerizable composition containing a polythiol compound having at least three mercapto groups and a polyiso(thio)cyanate compound. The polyiso(thio)cyanate compound contains only a polyiso(thio)cyanate compound having no aromatic ring, and a thiol equivalent ratio which is a measured value of a thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.900 or more and less than 1.000.

公开(公告)号：US20180100033A1

公开(公告)日：2018-04-12

申请号：US15561303

申请日：2016-03-25

Applicant: HOYA LENS THAILAND LTD.

Inventor： Takayuki IIJIMA

IPC: C08G18/38 ,  C08G18/75 ,  C08G18/73 ,  G02B1/04

CPC classification number: C08G18/3876 ,  C08G18/242 ,  C08G18/3865 ,  C08G18/722 ,  C08G18/73 ,  C08G18/753 ,  C08G18/755 ,  G02B1/04 ,  G02B1/041 ,  G02C7/02

Abstract: Provided are a polymerizable composition allowing obtainment of an optical component with reduced striae, an optical component obtained from the polymerizable composition, a plastic lens containing the optical component, and a spectacle lens including a lens substrate including the optical component. The polymerizable composition of the present disclosure contains an isocyanate component which contains alicyclic polyisocyanate (A-1) having two or more isocyanate groups and non-cyclic aliphatic polyisocyanate (A-2) having two or more isocyanate groups, and a polythiol component which contains polythiol (B-1) having four or more mercapto groups and two or more sulfide bonds and polythiol (B-2) having two or three mercapto groups and two or three ester bonds. The optical component is obtained by polymerizing the polymerizable composition of the present disclosure. The plastic lens contains the optical component of the present disclosure. The spectacle lens includes a lens substrate which includes the optical component.