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公开(公告)号：US20240336555A1
公开(公告)日：2024-10-10
申请号：US18294009
申请日：2022-09-19
发明人： Michael MERKEL
IPC分类号： C07C211/12 , C07C263/10
CPC分类号： C07C211/12 , C07C263/10
摘要： The invention relates to a method for the processing and transport of hexane-1,6-diamine or pentane-1,5-diamine comprising the steps of: a) Providing a first composition including 60 to 98 wt.-% water and 2 to 40 wt.-% hexane-1,6-diamine or pentane-1,5-diamine, b) partially removing water from the first composition by distillation at a first production location, whereby a second composition is generated, said second composition including the hexane-1,6-diamine or pentane-1,5-diamine and 1 wt.-% to 35 wt.-% water, and c) transporting said second composition during a span of time t from the first production location to a second production location, wherein the span of time t including times for optional temporary storage is at least 6 h.
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公开(公告)号：US20240317679A1
公开(公告)日：2024-09-26
申请号：US18259824
申请日：2021-12-30
发明人： Ju Won MIN , Hyun Cheol RYU
IPC分类号： C07C263/10
CPC分类号： C07C263/10
摘要： The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can recover and reuse materials used in the reaction during the preparation of an isocyanate compound using phosgene, and can minimize thermal denaturation of a reaction product and formation of by-products.
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公开(公告)号：US12064733B2
公开(公告)日：2024-08-20
申请号：US17257083
申请日：2019-07-03
发明人： Paul A. Gillis , Quan Yuan
IPC分类号： B01F25/314 , B01F25/433 , B01J19/24 , B01J19/26 , C07C263/10
CPC分类号： B01F25/3141 , B01F25/31423 , B01F25/4336 , B01J19/2405 , B01J19/26 , C07C263/10
摘要： Phosgene is mixed with an organic polyamine to produce polyisocyanate compounds. A phosgene flow is established in a conduit (15), and the organic polyamine is injected into the phosgene flow. A constricted region (4) of the conduit (15) resides downstream of the point of the polyamine injection. The presence of the constricted region (4) reduces by-product formation.
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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：US20240059648A1
公开(公告)日：2024-02-22
申请号：US18038031
申请日：2021-11-23
申请人： BASE SE
发明人： Kai THIELE , Jens FERBITZ , Torsten MATTKE
IPC分类号： C07C263/10 , C07C263/20
CPC分类号： C07C263/10 , C07C263/20
摘要： The present invention concerns a process for the preparation of isocyanates and/or polyisocyanates by reacting the corresponding amines with phosgene in a reactor, where isocyanates are obtained from a mixture of amines in gaseous or liquid form and phosgene in gaseous form, wherein no liquid solvents are used in the feeding, mixing, reacting, cooling, separating and purifying steps of the process.
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公开(公告)号：US20240050909A1
公开(公告)日：2024-02-15
申请号：US18257887
申请日：2021-12-17
发明人： Hye Won LEE , Hyun Cheol RYU , Keedo HAN
IPC分类号： B01J4/00 , B01J19/00 , B01J19/18 , B01F27/113 , B01F27/91 , C07C263/10 , C07C265/14 , C07C263/02
CPC分类号： B01J4/004 , B01J19/0066 , B01J19/006 , B01J19/18 , B01F27/113 , B01F27/91 , C07C263/10 , C07C265/14 , C07C263/02 , B01J2204/005 , B01J2219/00029 , B01J2219/00768
摘要： A batch reactor according to an embodiment of the present disclosure includes: a reactor receiving a solvent in a liquid phase; a sparger configured to supply a raw material in a gas phase into the reactor; and a stirrer having an impeller on a rotational shaft installed in the reactor in a height direction to stir the solvent and the raw material, in which the impeller includes a radial-type impeller and an axial-type impeller.
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8.发明公开公开(公告)号：US20240018097A1
公开(公告)日：2024-01-18
申请号：US18256219
申请日：2021-12-09
发明人： Christos Karafilidis , Marina Reithmeier , Stefan Wershofen , Michael Schedler , Michael Baecker
IPC分类号： C07C263/10 , C07C227/18 , C07C265/12 , C08G18/76 , C08G18/77
CPC分类号： C07C263/10 , C07C227/18 , C07C265/12 , C08G18/7657 , C08G18/771 , C07C2527/10
摘要： The present invention relates to a process for preparing a polyisocyanate, namely an isocyanate group-terminated polyol polyanthranilic acid ester. The process comprises the step of reacting an anthranilic acid derivative selected from anthranilic acid halide (in particular anthranilic acid chloride), isatoic anhydride or a mixture thereof with a first polyol of a number-average molar mass of at least 200 g/mol and a functionality in the range of 2 to 8, and obtaining, as a result, a polyamine (namely a polyol polyanthranilic acid ester with amine terminal groups) and reacting the polyamine with phosgene and obtaining, as a result, a polyisocyanate (namely an isocyanate group-terminated polyol polyanthranilic acid ester). The invention further relates to the polyisocyanates obtained in this way, their use in polyaddition reactions, and polyaddition products obtainable by these reactions.
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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：US20230212109A1
公开(公告)日：2023-07-06
申请号：US17996534
申请日：2021-05-12
IPC分类号： C07C263/10 , C07C263/20
CPC分类号： C07C263/10 , C07C263/20
摘要： The present invention relates to a method for operating a plant for continuous production of an isocyanate by converting a primary amine A with phosgene P whilst maintaining, based on the amino groups of the primary amine, a stoichiometric excess of phosgene in the presence of a solvent L in the liquid phase, using a first, adiabatically operated reaction chamber and a second, isothermally operated reaction chamber. The method is characterised in that a combination of measures, in particular the maintenance of a sufficiently high starting pressure and a sufficiently high starting temperature, is applied in order to bring the plant back into the target state, standard operation, starting from a state of interruption to production.
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