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公开(公告)号：US12049437B2
公开(公告)日：2024-07-30
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
CPC分类号： C07C265/08 , C07C263/20 , G02B1/041
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：US11702384B2
公开(公告)日：2023-07-18
申请号：US17111814
申请日：2020-12-04
发明人： Jaeyoung Pai , Jeongmoo Kim , Hyuk Hee Han , Jung Hwan Myung
IPC分类号： C07C265/14 , C07C263/10 , C07C263/20 , C08G18/76 , G02B1/04
CPC分类号： C07C265/14 , C07C263/10 , C07C263/20 , C08G18/7642 , G02B1/041
摘要： According to an embodiment, the pH of a diisocyanate composition and a diamine hydrochloride composition used in the preparation of an optical lens 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 by suppressing the striae and cloudiness. Specifically, according to the process of the embodiment, the amount of an aqueous hydrochloric acid solution introduced to the reaction may be adjusted to control the pH of the diisocyanate composition to a desired range, thereby enhancing the yield and purity. Accordingly, the process for preparing a diisocyanate composition according to the embodiment can be applied to the preparation of a plastic optical lens of high quality.
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公开(公告)号：US11339121B2
公开(公告)日：2022-05-24
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 , C07C265/14
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：US11964931B2
公开(公告)日：2024-04-23
申请号：US17109805
申请日：2020-12-02
发明人： Jaeyoung Pai , Jeongmoo Kim , Jung Hwan Myung , Hyuk Hee Han
IPC分类号： C07C263/10 , B29D11/00 , C07C263/20 , C08G18/76 , G02B1/04
CPC分类号： C07C263/10 , B29D11/00442 , C07C263/20 , C08G18/7642 , G02B1/041
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, in which the reaction temperature of a diamine hydrochloride composition and triphosgene is controlled to a specific range, or a crude diisocyanate composition obtained from the reaction of a diamine hydrochloride composition and triphosgene is distilled at a specific temperature range, or the molar ratio of a diamine hydrochloride and triphosgene is adjusted to a specific range.
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公开(公告)号：US11932591B2
公开(公告)日：2024-03-19
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
CPC分类号： C07C263/10 , B29D11/00009 , C08G18/3876 , C08G18/73 , C08G18/755 , C08G18/7642 , G02B1/041
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：US11760719B2
公开(公告)日：2023-09-19
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 , C07C263/10 , C07C211/27 , C07C265/14
CPC分类号： C07C263/20 , C07C211/27 , C07C263/10 , C07C265/14 , C07C263/10 , C07C265/08 , C07C263/10 , C07C265/14
摘要： A diamine composition comprising a benzylmonoamine having a methyl group in an amount of 10 ppm to 2,000 ppm in the composition and use thereof for the preparation of a diisocyanate composition and an optical material. A process for preparing a diisocyanate composition wherein the b* value according to the CIE color coordinate of the diamine composition is adjusted to a specific range, whereby the yield and purity of the diisocyanate composition and the optical characteristics of the final optical lens are enhanced. Use of the process for the diisocyanate composition for preparing a plastic optical lens of high quality.
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公开(公告)号：US11518737B2
公开(公告)日：2022-12-06
申请号：US17109893
申请日：2020-12-02
发明人： Jaeyoung Pai , Jeongmoo Kim , Hyuk Hee Han , Jung Hwan Myung , Jooyoung Jung , Myung-Ok Kyun
IPC分类号： C07C263/20 , G02B1/04 , C07C265/14
摘要： In the embodiments, an aqueous hydrochloric acid solution and an organic solvent 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 total content of metals, cations, or anions in a diamine hydrochloride composition.
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公开(公告)号：US11987541B2
公开(公告)日：2024-05-21
申请号：US17719905
申请日：2022-04-13
发明人： Jaeyoung Pai , Jeongmoo Kim , Hyuk Hee Han , Jung Hwan Myung
IPC分类号： C07C263/20 , C07C265/14
CPC分类号： C07C263/20 , C07C265/14
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：US11731936B2
公开(公告)日：2023-08-22
申请号：US17111857
申请日：2020-12-04
发明人： Jaeyoung Pai , Jeongmoo Kim , Jung Hwan Myung , Hyuk Hee Han , Jooyoung Jung , Myung-Ok Kyun
IPC分类号： C07C263/20 , G02B1/04 , C08G18/38 , C08G18/75 , C07C265/14
CPC分类号： C07C263/20 , C08G18/3868 , C08G18/757 , G02B1/041 , C07C265/14
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 high quality in which the content of water, the content of cations, or the content of an aromatic compound containing 3 or more of chlorine (Cl) in the organic solvent used in the reaction of a diamine hydrochloride composition and triphosgene is adjusted to a specific range.
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公开(公告)号：US11634383B2
公开(公告)日：2023-04-25
申请号：US17111726
申请日：2020-12-04
发明人： Jaeyoung Pai , Jeongmoo Kim , Jung Hwan Myung , Hyuk Hee Han
IPC分类号： C07C263/20 , C07C265/14
摘要： 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 using a solid triphosgene composition instead of phosgene gas in the process of preparing a diisocyanate from a diamine through a hydrochloride thereof and by controlling the content of a decomposition product in a triphosgene composition, the b* value according to CIE color coordinate of the triphosgene composition in an organic solvent, or the content of water in the triphosgene.
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