CAS: 3896-11-5; 2-(Tert-Butyl)-6-(5-Chloro-2H-Benzo[d][1,2,3]Triazol-2-yl)-4-Methylphenol

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CAS号94102-12-2 Phenol, 2-(5-ch... | CAS号486-25-9 9-芴酮 | CAS号50-00-0 甲醛 | CAS号64-17-5 乙醇 | CAS号90-44-8 蒽酮 | CAS号56750-11-9 2-(3-(tert-buty... | CAS号22617-04-5 2-(2’-硝基-4’-氯苯偶... | CAS号2409-55-4 单烃基酚 | CAS号89-63-4 邻硝基对氯苯胺

以 异丙醇 作为反应溶剂,化学反应 4.0H,以97.8%的收率获得产物紫外线吸收剂 Uv-326
参考文献:一种采用催化氢转移法制备苯并三唑类紫外 线吸收剂的方法
标题:一种采用催化氢转移法制备苯并三唑类紫外 线吸收剂的方法
摘要:本发明涉及一种采用催化氢转移法备苯并三唑类紫外线吸收剂的方法,该方法在进行氢转移反应前,先对反应原料偶氮苯类化合物进行精制处理,充分除去干扰氢转移反应的杂质,使其纯度达到99%以上,然后再进行氢转移反应.原料的精制确保了后续氢转移反应的顺利进行,能够高收率,高纯度的得到苯并三唑类紫外线吸收剂;同时,该方法显著降低了醌类催化剂的用量,是一条绿色环保,成本低,适宜于工业化的生产路线.

专利信息

专利号:US-11780952-B2
优先权日:2016-08-08
标题:Process for the synthesis of silylated polyurethanes and silylated polyurethane composition
发明人：LAFERTE OLIVIER
权利人:BOSTIK SA
摘要:The present invention provides a process for the synthesis of silylated polyurethanes, comprising three sequential steps, a step (i) of preparing NCO-terminated polyurethane, a step (ii) of partial grafting of the NCO functions with silane functions and a step (iii) of total grafting of the residual NCO functions with functions that react with the NCO functions by means of polyfunctional compounds. The present invention also provides a silylated polyurethane composition that can be obtained by means of the process according to the invention, an adhesive composition comprising said silylated polyurethane composition and a self-adhesive item obtained from the adhesive composition according to the invention.

专利号:US-2010305267-A1
优先权日:2007-10-30
标 题:Process for the production of powder coating compositions
发明人：FLOSBACH CARMEN; MATTEN STEFANIE; TUERK THOMAS
权利人:DU PONT
摘要:A process for the preparation of powder coating compositions, whichn (i) comprise a binder and at least one additive, the process comprising the synthesis of the binder in a reactor and the at least one additive being added to the starting materials used for synthesis of the binder and/or added to the still stirrable reactor contents before discharging the reactor contents from the reactor, or (ii) comprise a binder, a crosslinker and at least one additive, the process comprising the synthesis of the crosslinker in a reactor and the binder and the at least one additive being added to the starting materials used for synthesis of the crosslinker and/or added to the still stirrable reactor contents before discharging the reactor contents from the reactor.

专利号:US-2009318592-A1
优先权日:2005-10-11
标 题 :Process for the Synthesis of Amine Ethers
发明人：FREY MARKUS; BROENNIMANN VALERIE
权利人:CIBA GEIGY CORP
摘要:The present invention relates to novel processes for the preparation of a sterically hindered amine ether by reacting a corresponding sterically hindered amine oxide with a ketone or an aldehyde with at least one reactive H in the presence of a peroxydisulphate. Products obtained by this process may be hydrogenated. The compounds made by these processes are particularly effective in the stabilization of polymer compositions against harmful effects of light, oxygen and/or heat and as flame-retardants for polymers.

专利号:US-9982072-B2
优先权日:2013-10-30
标 题 :Synthesis of acetal compounds
发明人：LOCCUFIER JOHAN
权利人:AGFA GRAPHICS NV; AGFA NV
摘要:A process for the preparation of optionally asymmetric acetal compounds includes reacting a compound containing a hydroxyl group with a vinylether compound in the presence of a zwitterionic catalyst including at least one basic nitrogen containing structural fragment and at least one sulfonic acid group in its structure, with the proviso that a molar ratio of the basic nitrogen to sulfonic acid is 1:1.

专利号:US-2007191516-A1
优先权日:2004-03-15
标题 :Process for the synthesis of amine ethers
发明人：FREY MARKUS; RAST VALERIE; BRAIG ADALBERT; KRAMER ANDREAS
权利人:FREY MARKUS; RAST VALERIE; BRAIG ADALBERT; KRAMER ANDREAS
摘要:A process for the preparation of a sterically hindered amine ether which comprises reacting a corresponding sterically hindered aminoxide with a C 5 -C 18 alk-1-ene in the presence of an organic hydroperoxide and optionally hydrogenating the resulting product as well as the product mixtures obtained therewith and their use as stabilizers and flame retardants.

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.