DISULFIDE, METHOD FOR PRODUCING THE SAME, AND PRECURSOR THEREOF

Title:

DISULFIDE, METHOD FOR PRODUCING THE SAME, AND PRECURSOR THEREOF

Document Type and Number:

Japanese Patent JP2004307459

Kind Code:

A

Abstract:

To obtain a disulfide that can form an optical material having high refractive index and high Abbe's number in addition to high heat resistance, weather resistance, transparency, and provide a method for efficiently producing the disulfide and a precursor thereof.

This invention relates to the disulfide that bears a thiiranyl disulfide structure which means that a disulfide bond directly is connected to the thiiranyl group by 1-4 units in one molecule, a precursor of the disulfide, and another disulfide that is a disulfide bearing the thiiranyl disulfide structure by 1-4 units in one molecule by allowing the precursor to react with a mono- through tetra-functional thiol.

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Inventors:

OKUBO TAKESHI
HONMA MASAHIRO
O MEIKEI
TAKAMATSU TAKESHI

Application Number:

JP2003195861A

Publication Date:

November 04, 2004

Filing Date:

July 11, 2003

Export Citation:

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Assignee:

HOYA CORP

International Classes:

G02C7/02; C07D331/02; C07D409/14; (IPC1-7): C07D331/02; C07D409/14; G02C7/02

Attorney, Agent or Firm:

Tamotsu Otani

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