Title:
安定性および反応性が改善されたイソシアネート組成物、並びにこれを用いた光学レンズ
Document Type and Number:
Japanese Patent JP7157810
Kind Code:
B2
Abstract:
An embodiment relates to an isocyanate composition with improved stability and reactivity and a plastic optical lens using the same. The isocyanate composition has improved stability since the content of chlorine in the composition is adjusted to 22-500 ppm, and thus the isocyanate composition can prevent the deterioration in reactivity even in the long-term storage. Therefore, the isocyanate composition according to an example, even when used after long-term storage after preparation, can be prepared, through polymerization with a thiol-based compound, as a polythiourethane-based optical material with excellent physical properties, such as refractive index, Abbe number, transparency, glass transition temperature, and yellowness, and thus the isocyanate composition is useful in fields of glass lenses, a camera lens, and the like.
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Inventors:
Shin, Jung Hwan
Myeong, Jung Hwan
Han, Hyukhi
Myeong, Jung Hwan
Han, Hyukhi
Application Number:
JP2020531638A
Publication Date:
October 20, 2022
Filing Date:
December 26, 2018
Export Citation:
Assignee:
SKC CO., LTD.
International Classes:
C07C265/14; C07C263/18; C08G18/00; C08G18/38; C08G18/75; C08K5/03; C08K5/09; C08K5/29; C08L75/04
Domestic Patent References:
| JP5078304A | ||||
| JP2014234429A | ||||
| JP7033851A | ||||
| JP2001354640A | ||||
| JP2014055229A | ||||
| JP2004285359A |
Foreign References:
| GB1254690A | ||||
| US3660456 | ||||
| WO2015046369A1 |
Attorney, Agent or Firm:
SK Patent Attorney Corporation
Akihiko Okuno
Hiroyuki Ito
Akihiko Okuno
Hiroyuki Ito