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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：US20210171443A1
公开(公告)日：2021-06-10
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 , C07C263/20 , C08G18/76 , B29D11/00 , G02B1/04
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：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：US20210230352A1
公开(公告)日：2021-07-29
申请号：US15734645
申请日：2019-06-05
发明人： Dal Seong KIM , Oh Joon KWON , Sung Gi LEE , Gyeong Ha CHOI , Junghwan SHIN
IPC分类号： C08G18/76 , G02B1/04 , C07C263/10 , C08F2/06
摘要： Provided is a method for manufacturing diisocyanate and an optical lens in which, during the manufacture of diisocyanate from diamine via diamine hydrochloride, use is made of an aqueous hydrochloric acid solution and an organic solvent instead of hydrogen chloride gas and solid-phase triphosgen instead of phosgen gas while reaction conditions are controlled, whereby the diisocyanate of high quality can be manufactured at excellent yield, with the causation of less environmental problems.
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公开(公告)号：US20210171448A1
公开(公告)日：2021-06-10
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 , C08G18/75 , C08G18/38
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：US20210171445A1
公开(公告)日：2021-06-10
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
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：US20210171444A1
公开(公告)日：2021-06-10
申请号：US17111891
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： C07C263/10 , C07C263/20 , C07C265/14 , C08G18/76 , G02B1/04
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：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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