CAS: 1187-93-5; 1,1,2-Trifluoro-2-(Trifluoromethoxy)Ethene

1,2-二氯三氟乙基三氟甲醚置于5% Palladium-Copper On Carbon,氢气体系中,250.0 °C,101.33 Kpa 条件下,反应生成三氟甲基三氟乙烯基醚
参考文献:Method For Manufacturing Perfluorovinylethers
标题:Method For Manufacturing Perfluorovinylethers
摘要:本发明涉及一种通过氢化脱卤制备全氟乙烯醚的方法,其中所述卤代氟醚(hfe)的一般式为(i-A)或(i-B):Rfo-crf'x-crf″rf'″x″ (i-A)其中,Rf代表c1-C6全氟(氧)烷基;Rf',Rf″和rf'″,相同或不同,独立地代表氟原子或c1-C5全氟(氧)烷基;X和x',相同或不同,独立地选择在cl,Br或i之间;其中,Rf*和rf*',相同或不同,独立地代表氟原子或c1-C3全氟(氧)烷基;Y1和y2,相同或不同,独立地代表氟原子或c1-C3全氟烷基;X和x'如上所定义;所述方法包括将所述卤代氟醚(hfe)与氢气接触,在钯催化剂的存在下,与来自第viiib族金属(除钯外)和第ib族金属的至少一种过渡金属(m)中的一种反应.

专利信息

专利号:US-2012184653-A1
优先权日:2011-01-18
标 题:Synthesis of linear phosphorus-containing functional fluorocopolymer
发明人：WANG LIANG; WANG VIKTORIA
权利人:WANG LIANG; WANG VIKTORIA
摘要:This invention relates to a synthesis of a linear fluorocopolymer having a plurality of pendant phosphorus-containing functional groups. The synthesized phosphorus-containing fluorocopolymer has chain linearity and narrow molecular weight distributions. It has applications as a lubricant additive that provides friction-reduction, anti-wear, and corrosion protection properties.

专利号:US-11485804-B2
优先权日:2017-10-17
标题:Method for the synthesis of fluoropolymers
发明人：D'APRILE FIORENZA; KAPELYUSHKO VALERIY; KENT BRADLEY LANE; BRINATI GIULIO; PONTA LAURA
权利人:SOLVAY SPECIALTY POLYMERS IT
摘要:The present invention relates to a fluorosurfactant-free emulsion polymerization method for the synthesis of a fluoropolymer, more in particular of a VDF-based polymer.

专利号:US-6706803-B1
优先权日:1999-07-09
标题:Synthesis of perhalogenated thermoplastic (CO)polymers of chlorotrifluoroethylene
发明人：ABUSLEME JULIO A; MANZONI CLAUDIA
权利人:AUSIMONT SPA
摘要:A process for the synthesis of chlorotrifluoroethylene (PCTFE) (co)polymers, containing at least 80% by moles of CTFE, being the complement to 100 one or more fluorinated monomers, preferably the complement to 100 is formed of one or more perfluorinated monomers, characterized in that the reaction medium comprises (per)fluoropolyoxyalkylene microemulsions wherein the fluorinated surfactant is salified with sodium and/or potassium and an inorganic potassium and/or sodium initiator.

专利号:US-11745159-B2
优先权日:2017-10-20
标题:Heated nanowells for polynucleotide synthesis
发明人：MARSH EUGENE P; INDERMUHLE PIERRE F; PECK BILL JAMES
权利人:TWIST BIOSCIENCE CORP
摘要:Defined sequence RNA synthesis by 3′→5′ direction is now well established and currently in use for synthesis and development of vast variety of therapeutic grade RNA and Si RNA etc. A number of such synthetic RNA requires a modification or labeling of 3′-end of an oligonucleotide. The synthesis of 3′-end modified RNA requiring lipophilic, long chain ligands or chromophores, using 3′→5′ synthesis methodology is challenging, requires corresponding solid support and generally results in low coupling efficiency and lower purity of the final oligonucleotide in general because of large amount of truncated sequences containing desired hydrophobic modification. We have approached this problem by developing reverse RNA monomer phosphoramidites for RNA synthesis in 5′→3′-direction. They lead to very clean oligonucleotide synthesis allowing for introduction of various modifications at the 3′-end.

专利号:US-11512347-B2
优先权日:2015-09-22
标 题 :Flexible substrates for nucleic acid synthesis
发明人：PECK BILL JAMES
权利人:TWIST BIOSCIENCE CORP
摘要:Provided herein are compositions, devices, systems and methods for the generation and use of biomolecule-based information for storage. Further described herein are highly efficient methods for long term data storage with 100% accuracy in the retention of information. Additionally, devices described herein for de novo synthesis of oligonucleic acids encoding information related to the original source information may have a flexible material for oligonucleic acids extension.

专利号:US-11848117-B2
优先权日:2017-12-06
标题:Thin and uniform silver nanowires, method of synthesis and transparent conductive films formed from the nanowires
发明人：HU YONGXING; LI YING-SYI; YANG XIQIANG; ANG JING SHUN; VIRKAR AJAY
权利人:C3 NANO INC
摘要:Highly uniform and thin silver nanowires are described having average diameters below 20 nm and a small standard deviation of the diameters. The silver nanowires have a high aspect ratio. The silver nanowires can be characterized by a small number of nanowires having a diameter greater than 18 nm as well as with a blue shifted narrow absorption spectrum in a dilute solution. Methods are described to allow for the synthesis of the narrow uniform silver nanowires. Transparent conductive films formed from the thin, uniform silver nanowires can have very low levels of haze and low values of ΔL*, the diffusive luminosity, such that the transparent conductive films can provide little alteration of the appearance of a black background.