1,3-BISISOCYANATOMETHYLCYCLOHEXANE COMPOSITION AND OPTICAL RESIN PREPARED THEREFROM

Disclosed is a 1,3-bisisocyanatomethylcyclohexane composition and an optical resin prepared therefrom. The composition comprises, based on the weight of 1,3-bisisocyanatomethylcyclohexane, a) 65%-95wt% of trans-1,3-bisisocyanatomethylcyclohexane; b) greater than 0 and less than or equal to 0.5wt%, p...

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Bibliographic Details
Main Authors ZHU, Fulin, LI, Yuan, CHEN, Jie, CHEN, Hao, LI, Wenbin, WU, Qian, SHANG, Yonghua, LI, Jianfeng, WANG, Qiao, WANG, Peng
Format Patent
LanguageEnglish
French
German
Published 13.09.2023
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Disclosed is a 1,3-bisisocyanatomethylcyclohexane composition and an optical resin prepared therefrom. The composition comprises, based on the weight of 1,3-bisisocyanatomethylcyclohexane, a) 65%-95wt% of trans-1,3-bisisocyanatomethylcyclohexane; b) greater than 0 and less than or equal to 0.5wt%, preferably 0.02-0.5wt% of 1,4-bisisocyanatomethylcyclohexane. Preferably, the 1,3-bisisocyanatomethylcyclohexane composition contains greater than 0 and less than or equal to 600 ppm of 1-isocyanatomethyl-3-methylcyclohexane, based on the weight of 1,3-bisisocyanatomethylcyclohexane. The 1,3-bisisocyanatomethylcyclohexane composition is used for preparing an optical resin, which can be applied to produce an optical lens with a better performance in preventing opacification and optical distortion.
Bibliography:Application Number: EP20200894354