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11.发明申请公开(公告)号：US20210163669A1
公开(公告)日：2021-06-03
申请号：US16954076
申请日：2018-11-26
申请人： SKC CO., LTD.
发明人： Junghwan SHIN , Jung Hwan MYUNG , Hyuk Hee HAN
摘要： 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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公开(公告)号：US20190202968A1
公开(公告)日：2019-07-04
申请号：US16232746
申请日：2018-12-26
申请人： SKC CO., LTD.
发明人： Jongmin SHIM , Junghwan SHIN , Seung Mo HONG , Hyuk Hee HAN , Jung Hwan MYUNG
摘要： An embodiment relates to a polymerizable composition for an optical material and a polythiourethane-based compound prepared therefrom. The polythiourethane-based compound is excellent in appearance with low generation rates of stirae and bubbles.
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13.发明申请公开(公告)号：US20180282269A1
公开(公告)日：2018-10-04
申请号：US15941122
申请日：2018-03-30
申请人： SKC CO., LTD.
发明人： Junghwan SHIN , Seung Mo HONG , Jongmin SHIM , Hyuk Hee HAN , Jung Hwan MYUNG , Hyeon Myeong SEO , Yu Jeong SONG
IPC分类号： C07C319/08 , C07C319/26 , C07C323/64 , C08G18/38 , G02B1/04
摘要： Disclosed is to prevent generation of byproducts or a deterioration in the physical properties of a polythiol composition that may be caused by active oxygen during storage thereof by way of controlling the content of active oxygen in the polythiol composition after the synthesis of the polythiol. As a result, it is possible to enhance the long-term storage stability of a polythiol composition after it has been synthesized until it is used in the polymerization reaction.
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公开(公告)号：US20220144761A1
公开(公告)日：2022-05-12
申请号：US17586151
申请日：2022-01-27
发明人： Jaeyoung PAI , Jeongmoo KIM , Hyuk Hee HAN , Jung Hwan MYUNG , Jooyoung JUNG , Myung-Ok KYUN
摘要： In the embodiments, an aqueous hydrochloric acid solution instead of hydrogen chloride gas and solid triphosgene instead of phosgene gas may be used in the process of preparing a diisocyanate from a diamine through a diamine hydrochloride. In addition, the embodiments provide processes for preparing a diisocyanate composition and an optical lens of higher quality by controlling the water content in the diamine hydrochloride composition for preparing a diisocyanate within a specific range.
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公开(公告)号：US20210171451A1
公开(公告)日：2021-06-10
申请号：US17111688
申请日：2020-12-04
发明人： Jaeyoung PAI , Jeongmoo KIM , Hyuk Hee HAN , Jung Hwan MYUNG , Myung-Ok KYUN , Jooyoung JUNG
IPC分类号： C07C265/08 , C07C263/20 , G02B1/04
摘要： The diisocyanate composition according to an embodiment of the present invention comprises, in the composition, a benzyl isocyanate having a methyl group in an amount of 5 ppm to 200 ppm, an aromatic compound having a halogen group in an amount of 5 ppm to 1,000 ppm, a benzyl isocyanate having an ethyl group in an amount of 1 ppm to 1,000 ppm, or a combination thereof. It is possible to improve the optical characteristics by preventing the occurrence of yellowing, striae, and cloudiness and to enhance the mechanical properties such as impact resistance at the same time. Thus, it can be advantageously used to prepare an optical material of high quality.
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公开(公告)号：US20210171449A1
公开(公告)日：2021-06-10
申请号：US17111949
申请日：2020-12-04
发明人： Jaeyoung PAI , Jeongmoo KIM , Hyuk Hee HAN , Jung Hwan MYUNG
IPC分类号： C07C263/20
摘要： In the embodiments, an aqueous hydrochloric acid solution instead of hydrogen chloride gas and solid triphosgene instead of phosgene gas may be used in the process of preparing a diisocyanate from a diamine through a diamine hydrochloride. In addition, the embodiments provide processes for preparing a diisocyanate composition and an optical lens, which are excellent in yield and quality with mitigated environmental problems by controlling the size of the diamine hydrochloride composition, the b* value according to the CIE color coordinate of the diamine hydrochloride composition, or the content of water in the diamine hydrochloride composition within a specific range.
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公开(公告)号：US20210171447A1
公开(公告)日：2021-06-10
申请号：US17111779
申请日：2020-12-04
发明人： Jaeyoung PAI , Jeongmoo KIM , Hyuk Hee HAN , Jung Hwan MYUNG , Jooyoung JUNG , Myung-Ok KYUN
IPC分类号： C07C263/20 , C07C211/27
摘要： The diamine composition according to an embodiment of the present invention comprises a benzylmonoamine having a methyl group in an amount of 10 ppm to 2,000 ppm in the composition. When it is used for the preparation of a diisocyanate composition and an optical material, it is possible to improve the optical characteristics by preventing the occurrence of yellowing, striae, and cloudiness in the optical material and enhancing the mechanical properties such as impact resistance at the same time. In addition, in the process for preparing a diisocyanate composition according to another embodiment, the b* value according to the CIE color coordinate of a diamine composition is adjusted to a specific range, whereby it is possible to enhance not only the yield and purity of the diisocyanate composition but also the optical characteristics of the final optical lens. Thus, the process for preparing a diisocyanate composition can be applied to the preparation of a plastic optical lens of high quality.
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公开(公告)号：US20200339731A1
公开(公告)日：2020-10-29
申请号：US16960492
申请日：2019-01-11
申请人： SKC CO., LTD.
发明人： Junghwan SHIN , Jung Hwan MYUNG , Jongmin SHIM , Hyuk Hee HAN
摘要： Embodiments relate to a polythiourethane-based plastic lens. When a polythiourethane-based plastic lens is polymerized according to the embodiment, the types, contents, and the like of the polythiol compounds and the isocyanate compounds are adjusted to control the storage moduli at room temperature and high temperatures, their variations, the energy attenuation (KEL) obtained therefrom, and the glass transition temperature, whereby the polythiourethane-based plastic lens thus obtained is enhanced in impact resistance and thermal resistance.
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公开(公告)号：US20190329376A1
公开(公告)日：2019-10-31
申请号：US16462180
申请日：2018-01-09
申请人： SKC CO., LTD.
发明人： Hye Young HEO , Jang Won SEO , Hyuk Hee HAN
摘要： An embodiment relates to a porous polyurethane polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for preparing the same. In the porous polyurethane polishing pad, the polishing performance (or polishing rate) thereof can be controlled by adjusting the size and distribution of pores in the polishing pad.
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公开(公告)号：US20190225755A1
公开(公告)日：2019-07-25
申请号：US16226149
申请日：2018-12-19
申请人： SKC CO., LTD.
发明人： Jongmin SHIM , Jung Hwan MYUNG , Seung Mo HONG , Hyuk Hee HAN , Junghwan SHIN , Hyeon Myeong SEO
CPC分类号： C08G75/04 , C08G18/248 , C08G18/3876 , C08G18/73 , C08G18/7621 , C08G18/7642 , C08K5/005 , C08K5/37 , C08K2201/014 , G02B1/041 , C08L75/04 , C08L81/00
摘要： Embodiments relate to a polythiol composition for a plastic optical lens and a polythiourethane-based plastic optical lens prepared therefrom. In the embodiments, a first polythiol compound having mercapto groups only as a hydrogen-bondable functional group and a second polythiol compound having mercapto groups as a hydrogen-bondable functional group and a hydrogen-bondable functional group other than a mercapto group are used in an appropriate amount. Thus, not only is it possible to control the viscosity of a polymerizable composition at the initial stage of polymerization at a low temperature of 5 to 15° C. and to stabilize the rate of increase in the viscosity of the composition and the reaction rate thereof, but also the change in the viscosity at a low temperature is low, thereby preventing the generation of striae, bubbles, and the like. Further, various plastic lenses such as eyeglass lenses, camera lenses, and the like having excellent appearance characteristics (without striae and bubbles) and excellent optical characteristics can be obtained from the composition.
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