Title:
1,3-BISISOCYANATOMETHYLCYCLOHEXANE COMPOSITION AND OPTICAL RESIN PREPARED THEREFROM
Document Type and Number:
WIPO Patent Application WO/2021/103550
Kind Code:
A1
Abstract:
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.
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Inventors:
ZHU FULIN (CN)
LI JIANFENG (CN)
WANG PENG (CN)
LI WENBIN (CN)
CHEN JIE (CN)
WANG QIAO (CN)
WU QIAN (CN)
CHEN HAO (CN)
SHANG YONGHUA (CN)
LI YUAN (CN)
LI JIANFENG (CN)
WANG PENG (CN)
LI WENBIN (CN)
CHEN JIE (CN)
WANG QIAO (CN)
WU QIAN (CN)
CHEN HAO (CN)
SHANG YONGHUA (CN)
LI YUAN (CN)
Application Number:
PCT/CN2020/100732
Publication Date:
June 03, 2021
Filing Date:
July 07, 2020
Export Citation:
Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
International Classes:
C07C263/10; C08G18/75; C07C265/14; C08G18/38
Foreign References:
| CN105377808A | 2016-03-02 | |||
| CN105377808A | 2016-03-02 | |||
| CN104781229A | 2015-07-15 | |||
| CN110982034A | 2020-04-10 | |||
| US20130053179A1 | 2013-02-28 | |||
| US20130053179A1 | 2013-02-28 | |||
| TW201930260A | 2019-08-01 | |||
| US5576412A | 1996-11-19 | |||
| CN102516487A | 2012-06-27 |
Attorney, Agent or Firm:
SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)
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