Title:
OPTICAL RESIN
Document Type and Number:
Japanese Patent JPH0411613
Kind Code:
A
Abstract:
PURPOSE:To obtain an optical resin excellent in optical and mechanical properties by polymerizing a starting monomer containing a specified organosulfur compound. CONSTITUTION:A resin obtained by polymerizing a starting monomer containing an organosulfur compound of formula I [wherein R1 is H or methyl; X is a group of formula II, III, IV or the like (wherein R2 is H or methyl; Z is halogen; n1+m1 is 2-10; and q1 and q2 are each 0, 1 or 2); and Y is a group of formula V, VI or the like (wherein p is 0-4)]. The organosulfur compound can easily be obtained, by the addition reaction of 2mol of 1,2-bis(acryloyl) glycol with 1mol of 1,2-dimercaptoethane. The proportion of the organosulfur compound in the starting monomer is particularly desirably in the range of 50-100wt.% based on the starting monomer. When the organosulfur compound is used in an amount of 1-30wt.%, the obtained resin can be used as a high-performance crosslinking agent having a high refractive index.
Inventors:
MIYAZAKI TAKESHI
MURATA TAKASHIGE
MURATA TAKASHIGE
Application Number:
JP11317390A
Publication Date:
January 16, 1992
Filing Date:
April 27, 1990
Export Citation:
Assignee:
NIPPON OILS & FATS CO LTD
International Classes:
G02B1/04; C08F20/10; C08F20/38; C08F290/00; C08F299/00; (IPC1-7): C08F20/38
Domestic Patent References:
| JPS6026010A | 1985-02-08 | |||
| JPS62195357A | 1987-08-28 | |||
| JPS6342674A | 1988-02-23 |
Attorney, Agent or Firm:
Hajime Sakai (2 outside)
Next Patent: JPH0411614