Title:
RESIN COMPOSITION FOR EPOXY ACRYL-BASED MEDIUM-REFRACTIVE OPTICAL LENS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/194298
Kind Code:
A2
Abstract:
The present invention relates to an epoxy acryl-based optical lens and, particularly, to a resin composition for an epoxy acryl-based medium-refractive optical lens having a solid-phase refractive index of 1.53-1.58 and favorable transparency, Abbe's number, thermal stability, light resistance, and compressive strength, and to a preparation method therefor. The present invention provides a resin composition for an epoxy acryl-based medium-refractive optical lens having a solid-phase refractive index of 1.53-1.58, the resin composition containing: 50-70 wt% of bisphenol A epoxy acrylate, which is obtained by reaction of bisphenol A diglycidyl ether having a chlorine content of 100-1,700 ppm and an acrylic acid; 21-45 wt% of methyl methacrylate; and 1-17 wt% of a reactive diluent. According to the present invention, a resin composition for an epoxy acryl-based medium-refractive optical lens having improved compressive strength and favorable transparency, Abbe's number, thermal stability, and light resistance in a medium-refractive lens having a refractive index of 1.53-1.58 can be obtained by controlling the chlorine content in bisphenol A diglycidyl ether and containing a large amount of MMA in the composition. The epoxy acryl-based medium-refractive optical lens according to the present invention substitutes for an existing medium-refractive optical lens, and thus can be widely used in various fields.
Inventors:
JANG DONG GYU (KR)
ROH SOO GYUN (KR)
HONG GIL PYO (KR)
ROH SOO GYUN (KR)
HONG GIL PYO (KR)
Application Number:
PCT/KR2018/003956
Publication Date:
October 25, 2018
Filing Date:
April 04, 2018
Export Citation:
Assignee:
KOC SOLUTION CO LTD (KR)
International Classes:
C08F220/32; B29D11/00; C08K5/53; G02B3/00
Attorney, Agent or Firm:
YOU, Byung Sun (KR)
Download PDF: