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1.发明申请公开(公告)号：US20180334428A1
公开(公告)日：2018-11-22
申请号：US15980821
申请日：2018-05-16
申请人： SKC CO., LTD.
发明人： Junghwan SHIN , Hyuk Hee HAN , Seung Mo HONG , Sang Mook KIM
IPC分类号： C07C263/18 , C07C265/14 , C08G18/38 , C08G18/76 , G02B1/04
摘要： The xylylene diisocyanate composition according to the embodiments has a chlorine content of 100 to 1,000 ppm to improve the stability, so that the degradation of the reactivity can be prevented even when it is stored for a long period of time. Therefore, even if the xylylene diisocyanate composition according to the embodiments is used after it has been stored for a long period of time for sale or the like, the xylylene diisocyanate composition can be polymerized with a thiol to produce a polythiourethane-based optical material having excellent properties such as refractive index, Abbe number, transparency, glass transition temperature, yellowness index, and the like. Therefore, it can be advantageously used in the field of eyeglass lenses, camera lenses, and the like.
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公开(公告)号：US20220389147A1
公开(公告)日：2022-12-08
申请号：US17751863
申请日：2022-05-24
申请人： SKC CO., LTD.
发明人： Hyuk Hee HAN , Eui Jun Choi , Kyeong Hwan You , Jung Hwan Myung , Jae Young Pai , Jeong Moo Kim , Jung Hwan Shin
摘要： A polymerizable composition according to an embodiment includes a first polymerizable compound including isophorone diisocyanate and hexamethylene diisocyanate, and a second polymerizable compound including 4-mercaptomethyl-3,6-dithia-1,8-octanedithiol and pentaerythritol tetrakis(mercaptoacetate). An optical material which is fabricated from the polymerizable composition and has improved optical, mechanical and thermal properties is provided.
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公开(公告)号：US20210179552A1
公开(公告)日：2021-06-17
申请号：US17117407
申请日：2020-12-10
申请人： SKC CO., LTD.
发明人： Jaeyoung PAI , Seung Mo HONG , Hyeon Myeong SEO , Junghwan SHIN , Jeongmoo KIM , Jung Hwan MYUNG , Hyuk Hee HAN
IPC分类号： C07C321/04 , C07C335/02 , C07C319/12
摘要： The embodiments relate to a process for preparing a polythiol composition, which comprises reacting a halogen compound or an alcohol compound with thiourea to prepare a thiouronium salt solution; and adding a basic solution to the thiouronium salt solution to hydrolyze it. The hydrolysis reaction is terminated when the area of peak A in the graph measured by gel permeation chromatography of the reactant in the hydrolysis step under certain conditions is 0.5% to 8% based on the total peak area. A tetrafunctional polythiol composition having high purity can be obtained. Thus, an optical lens having excellent color, transparency, and refractive index can be obtained.
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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：US20190061097A1
公开(公告)日：2019-02-28
申请号：US16108607
申请日：2018-08-22
申请人： SKC CO., LTD.
发明人： Jang Won SEO , Hyuk Hee HAN , Hye Young HEO , Joonsung RYOU , Young Pil KWON
摘要： Embodiments relate to a porous polyurethane polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for producing the same. In the porous polyurethane polishing pad, it is possible to control the size and distribution of pores, whereby the polishing performance (i.e., polishing rate) of the polishing pad can be adjusted, by way of employing thermally expanded microcapsules as a solid phase foaming agent and an inert gas as a gas phase foaming agent.
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公开(公告)号：US20180334531A1
公开(公告)日：2018-11-22
申请号：US15980265
申请日：2018-05-15
申请人： SKC CO., LTD.
发明人： Junghwan SHIN , Hyuk Hee HAN , Jongmin SHIM
摘要： An isocyanate composition is prepared from an amine composition, which comprises (a) 99% to less than 100% by weight of m-xylylenediamine; (b) greater than 0% to 0.5% by weight of p-xylylenediamine; and (c) greater than 0% to 0.5% by weight of at least one selected from the group consisting of benzylamine, 4-methylbenzylamine, and 4-cyanobenzylamine. Therefore, the isocyanate composition used in the preparation of a polythiourethane can be controlled to a specific composition in the synthesis thereof, which makes it possible to conveniently produce an optical lens with a high quality.
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公开(公告)号：US20210230351A1
公开(公告)日：2021-07-29
申请号：US15734513
申请日：2019-06-04
申请人： SKC CO., LTD.
发明人： Seung Mo HONG , Jung Hwan MYUNG , Hyuk Hee HAN , Jeongmoo KIM , Junghwan SHIN
摘要： One embodiment relates to a polymerizable composition and an optical material produced therefrom which has excellent lightfastness and minimized color defects, and more specifically, the polymerizable composition according to one embodiment includes UV absorbers having, as the main absorption wavelength, either a long-wavelength region or a short-Wavelength region Within the UV region, wherein the UV absorbers do not absorb in the Visible light region. Accordingly, the polymerizable composition may be used to provide an optical material having excellent lightfastness and minimized color defects.
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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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