专利号:US-2024425890-A1 优先权日:2022-02-11 标 题:Process for the synthesis of alpha-methylene-gamma-butyrolactone 发明人:TADEN ANDREAS; BECK HORST; MYRTOLLARI KAMELA; KOURIST ROBERT; NIGL ANDREA 权利人:HENKEL AG & CO KGAA 摘要:The present application provides a process for the preparation of α-methylene-γ-butyrolactone, said process comprising the steps of:a) acetylating the C1-hydroxyl group of isoprenol to yield isoprenyl acetate;b) forming 4-acetoxy-2-methylene-butan-1-ol from said isoprenyl acetate by whole cell biotransformation, said step comprising:i) contacting a cell (CB) with a culture medium containing said isoprenyl acetate or with a culture medium contiguous with an organic phase containing said isoprenyl acetate under conditions that enable the cell to form 4-acetoxy-2-methylene-butan-1-ol from isoprenyl acetate; and,ii) optionally isolating the resultant 4-acetoxy-2-methylene-butan-1-ol, wherein said cell (CB) exhibits activity of at least one alkane monooxygenase enzyme which catalyzes the formation of 4-acetoxy-2-methylene-butan-1-ol from isoprenyl acetate;c) oxidizing said 4-acetoxy-2-methylene-butan-1-ol to yield 4-acetoxy-2-methylene butyric acid; and,d) converting said 4-acetoxy-2-methylene butyric acid to α-methylene-γ-butyrolactone by hydroxylysis to γ-hydroxy-α-methylenebutyric acid and subsequent cyclization of said γ-hydroxy-α-methylenebutyric acid.
专利号:US-2023212107-A1 优先权日:2021-12-30 标 题:Synthesis of para-alkylated syringyl (meth)acrylate derivatives and photopolymerizable compositions for additive manufacturing in dental applications 发明人:CHOUDHARY UMESH UPENDRA; SU JESSICA KALAY 权利人:ALIGN TECHNOLOGY INC 摘要:The present disclosure provides polymerizable monomers which may be used as reactive diluents in additive manufacturing. The polymerizable monomers may have low vapor pressures and may be compatible with a range of low glass transition temperature oligomers.
专利号:US-2005019747-A1 优先权日:2002-08-07 标 题 :Nanoliter-scale synthesis of arrayed biomaterials and screening thereof 发明人:ANDERSON DANIEL G; LEVENBERG SHULAMIT; LANGER ROBERT S 摘要:A method of screening cell-polymer interactions. The method includes depositing monomers as a plurality of discrete elements on a substrate, causing the deposited monomers to polymerize, thereby creating an array of discrete polymer elements on the substrate, incubating the substrate in a cell-containing culture medium, and characterizing a predetermined cell behavior on each polymer element.
专利号:US-8470932-B2 优先权日:2010-04-08 标题 :Scalable process for synthesis of a curable wax 发明人:ROBINSON SARAH J P; ENRIGHT THOMAS E; BELELIE JENNIFER L 权利人:ROBINSON SARAH J P; ENRIGHT THOMAS E; BELELIE JENNIFER L; XEROX CORP 摘要:The methods of manufacturing a curable wax, such as an acrylate of a hydroxyl-terminated polyethylene wax having the structure CH 3 —(CH 2 ) n —CH 2 OH, where n=22-24, are disclosed. The methods may include reacting a wax having a transformable functional group and a curable compound in the presence of an organic solvent to form an acrylate. The methods may further include removing excess curable compound using hot water having a temperature of more than 85° C., and solidifying the acrylate. The methods may thereby provide safe and cost effective methods for curable wax production at large scale.
专利号:US-8207274-B2 优先权日:2010-04-08 标 题 :Solvent-free process for synthesis of a curable wax 发明人:ROBINSON SARAH J P; ENRIGHT THOMAS E; BELELIE JENNIFER L 权利人:ROBINSON SARAH J P; ENRIGHT THOMAS E; BELELIE JENNIFER L; XEROX CORP 摘要:The methods of manufacturing a curable wax, such as an acrylate of a hydroxyl-terminated polyethylene wax having the structure CH3—(CH2)n—CH2OH, where n=22-24, and removing a fouled material in a reactor are disclosed. The methods may include reacting a wax having a transformable functional group and a curable compound in the absence of an organic solvent to form an acrylate. The methods may further include removing excess curable compound using hot water having a temperature of more than about 85° C., solidifying the acrylate, removing the acrylate, and removing a fouled material in the reactor by emulsification.
专利号:US-2024207822-A1 优先权日:2022-12-21 标题:Multifunctional hybrid catalyst with niobium and tin supported on hexagonal mesoporous silica, synthesis process of said catalyst and process for obtaining biodegradable lubricating base oils using said catalyst 发明人:QUINTELLA SOLANGE ASSUNÇÃO; DA SILVA JOSE ANDRE CAVALCANTI; DE LUNA FRANCISCO MURILO TAVARES; ASSUNCAO CHARLES LIMA BESSA; COSTA MARIA THICIANE ALMEIDA; CAVALCANTE JR CELIO LOREIRO; SILVEIRA TEIXEIRA MARIA IMACULADA G 权利人:PETROLEO BRASILEIRO SA PETROBRAS; UNIV FEDERAL CEARA 摘要:The present invention relates to a multifunctional hybrid catalyst with niobium and tin supported on hexagonal mesoporous silicas (HMS Nb—Sn ), synthesis process thereof through isomorphic substitutions and the process for obtaining biodegradable lubricating base oils using said catalyst.
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合成参考文献
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