CAS: 7727-21-1; Potassium Persulfate

专利信息

专利号:US-2020087149-A1
优先权日:2015-07-22
标 题 :Method for the synthesis of nanofluids
发明人：TALAEI ZEINAB; RASHIDI ALIMORAD; AMROLLAHI BIYOUKI AZADEH; MAHJOUB ALLREZA; LOTFI ROGHAYYEH; RASHTCHI MARYAM
权利人:RES INSTITUTE OF PETROLEUM INDUSTRY
摘要:The present invention relates to a method for the synthesis of nanofluids including functionalization of carbon nanostructures through a new method comprising the addition of carbon nanostructures to water; ultrasonication of the solution; addition of persulfate salt and one or several metal hydroxides of the first column of the periodic table to the aqueous solution containing carbon nanostructure; re-exposing the solution to ultrasonic waves; and then, the separation of the functionalized carbon nanostructures from the solution and washing the carbon nanostructures with water to neutralize them and mixing the nanoparticles obtained from the previous step with the fluid. By presenting a new method for the synthesis of the functionalized carbon nanostructures with specific amount of functional groups and their application in the synthesis of nanofluids, an increase in the stability and thermal conductivity of nanofluids takes place.

专利号:US-11719709-B2
优先权日:2020-02-14
标题 :Water soluble polymer surfactant for synthesis of functionalized polystyrene nanobeads towards detection of bilirubin in human serum
发明人：MAKKAD SARABJOT KAUR; SYAMAKUMARI ASHA
权利人:COUNCIL SCIENT IND RES
摘要:The present invention provides a water soluble polymer surfactant (PS-DGlu) of formula I which is utilized for synthesis of functionalized polystyrene nanobead covalently incorporating (oligo) p-phenylenevinylene (OPV) nanosensor (PSG-OPV-n) which in turn is useful for the detection of bilirubin in human serum. The present invention further provides a process for the preparation of the water soluble polymer surfactant (PS-DGlu) of formula (I) and a mini emulsion polymerization process for the synthesis of PSG-OPV-n.wherein, n is 30-50.The PSG-OPV-n nanosensor beads show selectivity towards detection of bilirubin in presence of interferences such as glucose, sucrose, metal ions, cholesterol, and biliverdin with limit of detection of 20 nM. Ultimately, the invention also provides a kit for visual detection of bilirubin in human serum.

专利号:US-12410140-B2
优先权日:2020-06-19
标题:Method for synthesis of roxadustat and intermediate thereof, and intermediate thereof
发明人：ZHANG YONG; WANG GUO; YANG FEI; LIU FENGWEI; ZHOU CHUNDONG; ZHANG ZITONG
权利人:JUMPCAN SHANGHAI MEDICAL TECH CO LTD
摘要:Disclosed are a method for the synthesis of roxadustat and an intermediate thereof, and an intermediate thereof. In particular, disclosed is a method for the synthesis of compound M1, the method comprising the following steps: carrying out a reaction as shown below between compound SM and compound SM-A under the action of an oxidizing agent. The method of the present invention uses cheap and easily available raw materials, has short reaction steps, produces a high yield, has simple and convenient post-treatment procedures, and is suitable for industrial production.

专利号:US-6512081-B1
优先权日:1997-07-21
标题:Synthesis of dithioester chain transfer agents and use of bis(thioacyl) disulfides or dithioesters as chain transfer agents
发明人：RIZZARDO ENZIO; THANG SAN HOA; MOAD GRAEME
权利人:E I DUPONT NEMOURS AND COMPANY; COMMW SCIENT IND RES ORG
摘要:This invention relates to the synthesis of dithiocarboxylic acid esters by reaction of bis(thioacyl) disulphides, thioacetals or vinylidane bis(thioether) with free-radicals (optionally in the presence of monomers). The invention also relates to processes for the synthesis of polymers utilising these dithioesters as polymerisation regulators (chain transfer agents) or to the use of bis(thioacyl) disulphides to generate dithioester chain transfer agents in situ.

专利号:US-9969823-B1
优先权日:2011-09-01
标题 :Synthesis and polymerization of vinyl triazolium ionic liquids
发明人：LUEBKE DAVID; NULWALA HUNAID; MATYJASZEWSKI KRZYSZTOF; ADZIMA BRIAN
权利人:US ENERGY; THE US DEPARTMENT OF ENERGY
摘要:Herein, we describe polymerized ionic liquids, demonstrate the synthesis of polymerized ionic liquids, and demonstrate the polymerization of triazolium monomers. One embodiment shows the polymeriazation of the triazolium monomers with bis(trifluoromethanesulfonyl)imide anions. In another embodiment we show the feasibility of copolymerizing with commodity monomers such as styrene using free radical polymerization techniques.

专利号:US-4837355-A
优先权日:1980-08-21
标 题:Process for the synthesis of phenoxyalkane derivatives
发明人：WATSON KEITH G
权利人:ICI AUSTRALIA LTD
摘要:The invention concerns a process for the synthesis of a compound of formula I ##STR1## wherein: U and V may be chosen from a range of substituents including hydrogen, halogen, alkyl and alkoxy; R 1 and R 2 may be chosen from a range of substituents including hydrogen and alkyl; n is 0, 1 or 2; and W may be chosen from a range of substitutents including the group ##STR2## which may be a free carboxylic acid or derivative thereof; the process comprising reacting a sulfate ester of formula II, wherein Q is a cation, with a compound of formula III, wherein L is a leaving group ##STR3## and hydrolyzing the sulfate ester formed. Preferably the sulfate ester of formula II is prepared by the oxidation of a phenol of formula IV with a persulfate. ##STR4##