CAS: 496-46-8; Tetrahydroimidazo[4,5-D]Imidazole-2,5(1H,3H)-Dione

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CAS号57-13-6 尿素 | CAS号97-59-6 尿囊素 | CAS号599-01-9 Propanoic acid,... | CAS号517-21-5 乙二醛亚硫酸氢钠水合物 | CAS号815-53-2 2,3-dioxopropan... | CAS号462-60-2 海因酸 | CAS号57-13-6 尿素 | CAS号28773-97-9 1,4-diacetyltet... | CAS号97-59-6 尿囊素 | CAS号108-80-5 氰尿酸 | CAS号776-19-2 四氯甘脲 | CAS号5395-50-6 四羟甲基甘脲 | CAS号461-72-3 乙内酰脲 | CAS号10543-60-9 N,N',N'',N'''-四乙酰基甘脲 | CAS号80262-44-8 葫芦脲

尿囊素置于sodium Amalgam,硫酸体系中,化学反应生成 甘脲
参考文献:Rheineck,Justus Liebigs Annalen Der Chemie,1865,Vol. 134,P. 220
标题:Rheineck,Justus Liebigs Annalen Der Chemie,1865,Vol. 134,P. 220

专利信息

专利号:US-9703192-B2
优先权日:2012-09-15
标 题:Onium compounds and methods of synthesis thereof
发明人：LABEAUME PAUL J
权利人:ROHM & HAAS ELECT MAT
摘要:New onium salt compounds and methods for synthesis of such compounds are provided. Preferred methods of the invention include (a) providing an onium salt compound comprising a sulfonate component having an electron withdrawing group; and (b) treating the onium salt compound with a halide salt to form a distinct salt of the onium compound. The present onium compounds are useful as an acid generator component of a photoresist composition.

专利号:US-7351781-B2
优先权日:2001-04-24
标题 :Synthesis of vinyl polymers by controlled radical polymerization
发明人：WHITE DANIELA; O'DWYER JAMES B
权利人:PPG IND OHIO INC
摘要:A controlled free radical polymerization process, which includes the steps of: adding a monofunctional iniferter compound to an oxygen-free solvent; heating the solution to a temperature sufficient to allow the iniferter compound to form two carbon centered radical residues; adding a first monomer composition comprising one or more monomers to the solution containing the radical containing residues; polymerizing the first monomer composition to form a quasi-living polymer; and optionally polymerizing a second monomer composition comprising one or more monomers, which are different than the first monomer composition. The resulting non-random copolymer having the general formula:n nφ-[-A p -B s -] t -φn nwhere A and B are different compositions of ethylenically unsaturated monomers; p is an integer from 1 to 1,000; s is an integer from 0 to 1,000; t is an integer from 1 to 100; and φ is a residue from the iniferter.

专利号:US-4209466-A
优先权日:1973-07-10
标题 :Manufacture of formaldehyde
发明人：DIEM HANS; GRABOWSKY OTTO; MATTHIAS GUENTHER; WOLF DIETER
权利人:BASF AG
摘要:Manufacture of formaldehyde by oxidative dehydrogenation of methanol in the presence of a silver catalyst using methanol obtained from a condensate derived from the evaporation of aqueous reaction mixtures in the synthesis of urea resins and then treated with caustic soda solution under specific conditions of temperature, pressure, residence time and initial formaldehyde concentration. The formaldehyde obtained is a disinfectant, tanning agent, reducing agent and starting material for the manufacture of synthetic resins, adhesives and plastics.

专利号:US-9255079-B2
优先权日:2009-12-10
标 题 :Photoacid generators and photoresists comprising same
发明人：LI MINGQI; AQAD EMAD; LIU CONG; MATTIA JOSEPH; XU CHENG-BAI; BARCLAY GEORGE G
权利人:LI MINGQI; AQAD EMAD; LIU CONG; MATTIA JOSEPH; XU CHENG-BAI; BARCLAY GEORGE G; ROHM & HAAS ELECT MAT
摘要:New methods are provided for synthesis of photoacid generator compounds (“PAGsâ€?), new photoacid generator compounds and photoresist compositions that comprise such PAG compounds. In a particular aspect, sulfonium-containing (S+) photoacid generators and methods of synthesis of sulfonium photoacid generators are provided.

专利号:US-2003018151-A1
优先权日:2001-04-24
标题 :Synthesis of vinyl polymers by controlled radical polymerization

专利号:WO-02085957-A1
优先权日:2001-04-24
标 题:Synthesis of vinyl polymers by controlled radical polymerization