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Title:
SULFUR-CONTAINING POLYMERIZABLE ADAMANTANE COMPOUND
Document Type and Number:
Japanese Patent JP2008174757
Kind Code:
A
Abstract:

To provide a polymerizable monomer which imparts an optical material suitable as a material for spectacle lenses or the like, having a high refractive index, a large Abbe number and also high heat resistance, and exhibiting such good processability as to scarcely emit unpleasant odor when undergoing machining such as grinding and abrading.

The sulfur-containing polymerizable adamantane compound comprises (a) one adamantyl group such as 1,3-adamantane dithiol, 3,5-dimercaptoadamantan-1-ol, 1,3-bis(2-mercaptoethylthio)adamantine, (b) at least two polyaddition-type functional groups selected from a mercapto group, a hydroxyl group, an episulfide group, an epoxy group, a thioisocyanate group, or an isocyanate group, and (c) at least one sulfur atom.


Inventors:
YAMAMOTO HIROMASA
TAKENAKA JUNJI
SAI MASAKAZU
Application Number:
JP2008063077A
Publication Date:
July 31, 2008
Filing Date:
March 12, 2008
Export Citation:
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Assignee:
TOKUYAMA CORP
International Classes:
C08G18/38; C07C321/22; C07C323/17; C07C323/22; C07C323/41; C07C327/08; C07D303/34; C07D331/02; C08G59/30; C08G75/08; G02B1/04; G02C7/00
Domestic Patent References:
JPH04360809A1992-12-14
JPH0931047A1997-02-04
Foreign References:
WO2001063363A22001-08-30



 
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