CAS: 5613-46-7; 4,4'-(Propane-2,2-Diyl)Bis(2,6-Dimethylphenol)

上下游产品

2.6-dimethylphenol 2-tert.-Butyl-4-isopropenyl-phenol acetone 2,6-xylenol sulfate 1-(3,5-dimethyl-4-hydroxyphenyl)-6-hydroxy-1,3,3,5,7-pentamethyl-1,2-dihydroindene 2,2-bis-(3,5-dimethyl-4-amin°Cyclohexyl)-propane 4-[1-(4-acetoxy-3,5-dimethylphenyl)-1-methylethyl]-2,6-dimethylphenyl ester

硫酸单-(2,6-二甲基-苯基酯)置于丙酮,十二硫醇体系中,化学反应 1.0H,反应生成 2,2-双(4-羟基-3,5-二甲基苯基)丙烷
参考文献:ビスフェノールの製造方法,及び,ポリカーボネート樹脂の製造方法
标题:ビスフェノールの製造方法,及び,ポリカーボネート樹脂の製造方法
摘要:在反应生成双酚类化合物的反应中,从芳香族醇和酮或醛反应生成双酚类化合物的反应中,缩短反应生成双酚类化合物的反应时间,改善反应生成双酚类化合物的选择性,并获得具有非常好色调的双酚类化合物的制备方法.将含有芳香族醇的有机相和含有硫酸的水相在油水分离的状态下,使芳香族醇反应生成芳香族醇磺酸,得到含有芳香族醇磺酸的反应反应生成液的步骤(1),将含有芳香族醇磺酸的反应反应生成液与酮或醛混合,在芳香族醇磺酸存在下,从芳香族醇和酮或醛反应生成双酚类化合物的步骤(2),包括制备双酚类化合物的方法.[选择图]无

专利信息

专利号:US-2003130433-A1
优先权日:2001-10-30
标题 :Process for the production of graft polymers
发明人：WENZ ECKHARD; BUCHHOLZ VERA; EICHENAUER HERBERT; WOLF UDO; BORN RALF-JURGEN; JANSEN ULRICH; DIETZ WOLFGANG
摘要:A process of preparing a graft polymer (e.g., an ABS graft copolymer), which involves determining the concentration of at least one reaction component during the course of the reaction by means of Raman spectroscopy, is disclosed. The process, more particularly, comprises: (a) synthesizing the graft polymer from a reaction mixture comprising reactive components (e.g., monomers such as styrene and acrylonitrile, and a graft base); (b) analyzing the reaction mixture, at intervals, during the synthesis of the graft polymer, by means of Raman spectra; (c) recording the results of the Raman spectra analysis; (d) determining the concentration of at least one of said reactive components (e.g., styrene) by means of spectral evaluation of the recorded Raman spectra; and (e) terminating the synthesis reaction of the graft polymer when the concentration of at least one of the reactive components has reached a predetermined concentration value.

专利号:US-2006115536-A1
优先权日:2004-11-12
标 题 :Glycerin based synthesis of silver nanoparticles and nanowires
发明人：YACAMAN MIGUEL J; ELECHIGUERRA JOSE L; BURT JUSTIN L; MORONES JOSE R; LOPEZ LETICIA L
权利人:UNIV TEXAS
摘要:The present invention includes compositions and methods for the production of noble metal nanoparticles and nanowires conjugated to polyols or polymers. The present invention allows the incorporation of noble metal nanoparticles to a wide range of products such as body care products to exploit the biocidal properties of silver nanoparticles against bacteria, viruses and fungi.

专利号:US-6482977-B1
优先权日:2000-07-28
标 题:Melt process for the synthesis of diaryl esters of aliphatic diacids
发明人：WHITNEY JOHN MORGAN; FABER REIN MOLLERUS; BOVEN GEERT; LENS JAN-PLEUN
权利人:GEN ELECTRIC
摘要:This invention relates to a method for preparing diaryl esters, comprising the step of reacting a mixture comprising diaryl carbonate and a dicarboxylic acid, wherein 2.005 to 2.2 molar equivalents of diaryl carbonate per molar equivalent of dicarboxylic acid are provided.

专利号:US-6307005-B1
优先权日:1999-10-29
标 题:Robust process for the synthesis of polyestercarbonates
发明人：DAVIS GARY CHARLES; MOBLEY DAVID PAUL
权利人:GEN ELECTRIC
摘要:The present invention related to a method for preparing a polyestercarbonate, the method comprising: n a) reacting a dihydric phenol and a diacid having from 12 to about 30 carbon atoms in the presence of an effective amount of carbonate precursor, thereby forming a reaction mixture, wherein the pH of the reaction mixture is maintained in an initial pH range of from about 8.5 to about 9.5 for about 50% to about 95% of the total carbonate precursor addition, and a second pH range of from about 10 to about 12 for the remainder of the carbonate precursor addition.

专利号:WO-2007001453-A9
优先权日:2004-11-15
标 题:Glycerin based synthesis of silver nanoparticles and nanowires
发明人：YACAMAN MIGUEL JOSE; ELECHIGUERRA JOSE LUIS; BURT JUSTIN LOCKHEART; MORONES JOSE RUBEN; LARIOS LETICIA
权利人:UNIV TEXAS; YACAMAN MIGUEL JOSE; ELECHIGUERRA JOSE LUIS; BURT JUSTIN LOCKHEART; MORONES JOSE RUBEN; LARIOS LETICIA
摘要:The present invention includes compositions and methods for the production of noble metal nanoparticles and nanowires conjugated to polyols or polymers. The present invention allows the incorporation of noble metal nanoparticles to a wide range of products such as body care products to exploit the biocidal properties of silver nanoparticles against bacteria, viruses and fungi.

专利号:US-8394912-B2
优先权日:2009-12-22
标 题 :Process and apparatus for the preparation of polycarbonate
发明人：DOEBERT FRANK; STREMMEL ANDREAS; BIEDRON CHRISTOPH; LAUE STEPHAN; RECHNER JOHANN; HAGEN TORSTEN; BRUYNSEELS FRANK; QUAEYHAEGENS FRANK; DECLOEDT JOHAN; VAN DORST PAUL; ARNDT UWE; EYNDE JOHAN VANDEN; TRACHT URSULA; KOENIG THOMAS; LIESENFELDER ULRICH
权利人:DOEBERT FRANK; STREMMEL ANDREAS; BIEDRON CHRISTOPH; LAUE STEPHAN; RECHNER JOHANN; HAGEN TORSTEN; BRUYNSEELS FRANK; QUAEYHAEGENS FRANK; DECLOEDT JOHAN; VAN DORST PAUL; ARNDT UWE; EYNDE JOHAN VANDEN; TRACHT URSULA; KOENIG THOMAS; LIESENFELDER ULRICH; BAYER MATERIALSCIENCE AG
摘要:The invention relates to a process for the pretreatment of material surfaces in order to minimize the interaction between polycarbonate and metal and, in the processing and synthesis of polycarbonate, to obtain a high-quality polymer which in particular does not become discolored and is free of insoluble constituents.