专利号:US-12338202-B2 优先权日:2021-09-10 标 题 :One pot synthesis of urea (meth)acrylates 发明人:BESTGEN SEBASTIAN; BEYER SILVIA 权利人:EVONIK OPERATIONS GMBH 摘要:A one-pot synthesis of polymerizable and acyclic urea (meth)acrylates, preferably mono(meth)acrylates, can be performed via in-situ synthesis of urea alcohols or amines followed by direct reaction with a (meth)acrylate reactive diluent. The urea alcohol/amine is obtained from isocyanates and alcohols, amines, or hydroxyamines. Subsequently, the reaction with the (meth)acrylate reactive diluent takes place and the urea (meth)acrylate is directly obtained either in solution with the reactive diluent, or as a pure material after removal of the reactive diluent.
专利号:US-2023348657-A1 优先权日:2020-07-23 标题 :Synthesis of linear polyoxazolidinones using uretdiones as diisocyanate component 发明人:QUELL AGGELIKI; THOMAS HANS-JOSEF; ELING BEREND 权利人:BASF SE 摘要:A process for preparing a thermoplastic polymer involves reacting at least components (a) to (b), in the presence of a catalyst composition (c). Component (a) is an isocyanate composition containing at least one uretdione diisocyanate (a-i), and component (b) is an epoxide composition containing at least one diepoxide (b-i). The catalyst composition (c) contains at least one ionic liquid (c-i), preferably selected from 1-ethyl-3-methyl imidazolium bromide, 1-benzyl-3-methyl imidazolium chloride. 1-butyl-1-methylpiperidinium chloride, 1-ethyl-2,3-dimethylimidazolium bromide, 1-(2-hydroxyethyl)-3-methyl imidazolium chloride, butyl-1-methylpiperidinium acetate, or mixtures of two or more thereof. A thermoplastic polymer obtained or obtainable from the process is useful for the preparation of a fibre or a molded article or as a modifier for another thermoplastic material.
专利号:US-10385167-B2 优先权日:2015-02-13 标题:Process for the synthesis of polyoxazolidinone compounds with high stability 发明人:MÜLLER THOMAS ERNST; Gürtler Christoph; BASU SUSMIT; RANGHEARD CLAUDINE; RIVILLO DAVID; LEITNER WALTER; Köhler Burkhard 权利人:COVESTRO DEUTSCHLAND AG 摘要:The present invention relates to polyoxazolidinone compounds, a method for the production of polyoxazolidinone compounds, comprising the step of reacting a biscarbamate compound with a bisepoxide compound in the presence of a mono-carbamate, a mono-isocyanate and/or a mono-epoxide compound as chain regulator and a suitable base having a pK b value of ≤9 as catalyst. The invention further relates to the use of polyoxazolidinone compounds with high thermal stability.
专利号:US-11326018-B2 优先权日:2016-08-19 标 题:Process for the synthesis of polyoxazolidinone compounds 发明人:WEBER ANNA; RANGHEARD CLAUDINE; KESSLER MICHAEL; LEITNER WALTER; Gürtler Christoph; KOOPMANS CARSTEN; MÜLLER THOMAS ERNST 权利人:COVESTRO DEUTSCHLAND AG 摘要:A method for the production of polyoxazolidinone compounds, comprising the step of reacting an isocyanate compound (A) with an epoxide compound (B) in the presence of a catalyst (C), wherein the isocyanate compound (A) comprises a isocyanate compound (A 1 ) wherein the a isocyanate compound (A1) comprising at least two isocyanate groups (I 1 ≥2), preferred two isocyanate groups (I 1 =2), wherein the epoxide compound (B) comprises a epoxide compound (B 1 ) and an epoxide compound (B 2 ), wherein the epoxide compound (B 2 ) is different from the epoxide compound (B 1 ) wherein the epoxide compound (B 1 ) comprising at least two terminal epoxide groups (F1≥2), preferred two terminal epoxide groups (F 1 =2), linked together by a linking group (L1) and the epoxide compound (B 2 ) comprising at least two terminal epoxide groups (F 2 ≥2)), preferred two terminal epoxide groups (F 2 =2), linked together by a linking group (L 2 ), wherein the linking group (L 2 ) comprises acyclic and covalent bonds to each other free of conjugated multiple bonds within the main chain, wherein the epoxide compound (B 2 ) is present in the epoxide compounds B 1 and B 2 , in an amount of ≥0.01 mol-% to <10 mol-%, preferred 1-9 mol-% more preferred 3-8 mol-% based on the molar ratio the terminal epoxide groups in the epoxide compound (B 1 ) and of the sum of the terminal epoxide groups in the epoxide compound (B 1 ) and terminal epoxide groups in the epoxide compound (B 2 ).
专利号:US-6783569-B2 优先权日:2001-08-16 标题:Method for synthesis of core-shell type and solid solution alloy type metallic nanoparticles via transmetalation reactions and applications of same 发明人:CHEON JIN WOO; PARK JONG IL 权利人:KOREA ADVANCED INST SCI & TECH 摘要:Disclosed is a method for producing core-shell type metallic nanoparticles involving (i) providing a dispersion of a first metal as nanoparticles in an appropriate organic solvent; (ii) providing a solution of a metallic precursor containing a second metal in an appropriate organic solvent, in which the second metal has a reduction potential higher than that of the first metal; and (iii) combining the dispersion from (i) and the solution from (ii) together to carry out the transmetalation reaction of the first and second metals, thereby forming core-shell type metallic nanoparticles.
专利号:US-2022010060-A1 优先权日:2018-12-12 标题:Polycarbonate polyols 发明人:FENG XIAOSHUANG; PATIL NAGANATH; BOOPATHI Senthil; GNANOU YVES; HADJICHRISTIDIS NIKOS 权利人:UNIV KING ABDULLAH SCI & TECH 摘要:Embodiments of the present disclosure describe polymerization systems for the synthesis of polycarbonate polyols, methods of synthesizing polycarbonate polyols using the polymerization systems, methods of recovering initiators and/or activators for use or re-use in the synthesis of polycarbonate polyol, and the like. The polymerization systems can comprise an initiator including a mono- or multi-functional carboxylate or carbonate salt having an organic cation as a counter-ion; an optional co-initiator including a mono- or multi-functional protic compound selected from acids, alcohols, water, and combinations thereof; and an activator including a borane compound selected from alkyl boranes and aryl boranes; wherein the activator and one or more of the initiator and co-initiator associate to form an ate complex.
参考文献:10.1002/rcm.3598 摘要:Liu D, Hao C, Zhang H, Qiao W, Li Z, Yu G, Yan K, Guo Y, Cheng L. Theory analysis of mass spectra of long-chain isocyanates. Rapid Commun Mass Spectrom. 2008 Jul;22(13):2109–14. doi: 10.1002/rcm.3598.