Episulfide compound, method for producing the same and optical product comprising the same
AssigneeHoya Corporation
InventorsTsuyoshi Okubo, Ken Takamatsu
Life of this patent
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Abstract
An episulfide compound useful as a starting material for optical materials that have a high refractive index and a high Abbe's number is provided. A method for producing the same and an optical product made with the same are also provided. The episulfide compound may be represented by the general formula (1): 1 wherein EP represents 2 and n is an integer of from 0 to 2. A method for producing the episulfide compound represented by the general formula (1) may involve reacting a mercapto group-containing episulfide compound with 2,4,6-trimethylene-1,3,5-trithiane.
Claims17
An episulfide compound represented by the general formula (1):
- 9
- wherein EP represents
- 10
- and n is an integer of from 0 to 2.
A method for producing an episulfide compound represented by the general formula (1):
- 11
- wherein EP represents
- 12
- and n is an integer of from 0 to 2, wherein the method comprises reacting a mercapto group-containing episulfide compound with 2,4,6-trimethylene-1,3,5-trithiane.
An optical product comprising a polymer obtained by using, as a monomer component, at least one episulfide compound represented by the general formula (1):
- 13
- wherein EP represents
- 14
- and n is an integer of from 0 to 2.
Dependencies are inferred from the claim text.