专利号:US-10173993-B2 优先权日:2015-12-09 标题 :Process for the synthesis of sulfones and sulfonamides 发明人:VON WOLFF NIKLAS; CHAR JOËLLE; CANTAT THIBAULT 权利人:COMMISSARIAT ENERGIE ATOMIQUE 摘要:A one pot single step process is described for the synthesis of a compound, including a labeled compound, containing a sulfonyl functional group comprising the step of mixing together a silane, an SO 2 source, an electrophilic compound, an activating compound and optionally a metal catalyst. A process for producing tracers from a labeled sulfonyl containing compound prepared by the described process is also included.
专利号:WO-2008148560-A1 优先权日:2007-06-07 标题 :New hybrid compounds of nucleobases and organic redox molecules and their use 发明人:ASAFTEI SIMONA CARMEN 权利人:UNIV OSNABRUECK; ASAFTEI SIMONA CARMEN 摘要:The present invention relates to new compounds as well as methods for the synthesis of the same, said compounds comprise a redox active group, e.g. a 4,4-bipyridine (viologen), a 1,2-di(4-pyridyl)ethane, a 2,7-diazapyrene or 2,9-diazaperylene group and a N-heterocyclic nucleobase (HB), also referred to as base.
专利号:US-7754842-B2 优先权日:2002-11-21 标题 :Elastomeric polymers 发明人:WAGENER KENNETH B; SWOREN JOHN C; ZULUAGA HECTOR F; MATLOKA PIOTR 权利人:UNIV FLORIDA 摘要:Acyclic diene metathesis (ADMET) has been utilized in the synthesis of carbosilane and carbosiloxane polymers bearing a latent reactive methoxy-functional group on each repeat unit. The polymerization results in a linear thermoplastic polymer. The latent reactive methoxy groups remain inert during polymerization; however, exposure to moisture triggers hydrolysis and the formation of a chemically cross-linked thermoset. The thermoset's properties can be modified by varying the ratio of carbosilane and carbosiloxane repeat units in the final material. Also, increasing cross-link density by using cross-linkable chain-end groups and increasing the run length of the soft phase, maximizing phase separation and elasticity, allows for the synthesis of elastic thermosets exhibiting good tensile strength. Adding a trifunctional ADMET active chain-end cross-linker to the system improved the mechanical behavior of the resulting polymer.
专利号:US-11866637-B2 优先权日:2021-03-31 标 题:Synthesis and use of grafted graphene in wellbore construction fluids for lubrication and corrosion inhibition 发明人:SANTRA ASHOK; THAEMLITZ CARL 权利人:ARAMCO SERVICES CO; SAUDI ARABIAN OIL CO 摘要:A composition of matter including a mono-facial polymer-grafted graphene particle and an aqueous-based drilling fluid is provided. In the composition, a first side of the graphene particle has a grafted polymer. A method of lubricating a tool surface using the composition of matter is also provided. The method includes providing an aqueous-based drilling fluid, the aqueous-based drilling fluid having a mono-facial polymer-grafted graphene particle, and introducing the aqueous-based drilling fluid into a wellbore such that it contacts a tool surface to form a coated tool. A drilling tool having a mono-facial polymer-grafted graphene particle adhered to its surface is also provided.
专利号:US-12071507-B2 优先权日:2014-01-10 标 题:Method and composition for improving adhesion of metathesis compositions to substrates 发明人:STEPHEN ANTHONY R; CRUCE CHRISTOPHER J; TRIMMER MARK S; GIARDELLO MICHAEL A 权利人:MATERIA INC 摘要:A method of improving the adhesion of metathesis compositions, such as ring-opening metathesis polymerization (ROMP) compositions, to a substrate is disclosed, in which an adhesion promoter is added to a polymerizable resin composition in order to improve the adhesion of the polymerizing resin to a substrate material. The addition of the adhesion promoter has been found to provide beneficial improvements in the adhesion of metathesis, especially ROMP, compositions to substrates, particularly glass surfaces, leading to improved characteristics in ROMP materials formed therefrom. The adhesion promoter generally comprises a functionalized silane compound and a peroxide compound. A ROMP composition is further disclosed comprising a cyclic olefin, a ROMP metathesis catalyst, and the adhesion promoter. Polymer products produced via metathesis (ROMP) reactions of the invention may be utilized to provide a wide range of materials and in a variety of composite applications. The invention has utility in the fields of catalysis, organic synthesis, and polymer and materials chemistry and manufacture.
专利号:US-12215039-B2 优先权日:2018-11-20 标题:Synthesis, capping, and dispersion of TiO2 nanocrystals 发明人:REPAC JASON ALLEN; WILLIAMS SERPIL GONEN; MONICKAM SELINA THOMAS; WIACEK ROBERT J 权利人:PIXELLIGENT TECH LLC; PT SPE SUBCO LLC 摘要:The preparation of monodispersed TiO 2 nanocrystals with nanocrystal size between 1-30 nm is described herein. These TiO 2 nanocrystals are used to prepare dispersions into solvents, formulation into monomers, oligomers, and polymers, and nanocomposites from the resulting formulations. Dispersions of nanocrystals can be formed in various solvents at high loading, high transmittance, and low viscosity. Formulations incorporating these nanocrystals and a matrix material are highly stable, where the resulting nanocomposites have high refractive index and are optically transparent in the visible wavelengths, with very little or no scattering.