欧盟法规
ECHA物质C&L通报REACH预注册上下游产品
1-chloro-2-(4-chlorophenylsulfonyl)benzene 1-methoxy-2-((4-methoxyphenyl)sulfonyl)benzene phenol sulfuric acid (2-acetoxy-phenyl)-(4-acetoxy-phenyl)-sulfone 1-methoxy-2-((4-methoxyphenyl)sulfonyl)benzene diphenylsulfon2,4'-Bisdiphenylsulfon 1-Chloro-2-(4-Chlorophenylsulfonyl)Benzene置于氢氧化钾体系中,化学反应生成 2,4-二羟基二苯砜
参考文献:Process For Producing Polyhydroxyarylsulphones
标题:Process For Producing Polyhydroxyarylsulphones
海关参考信息
- 2908199090-其他酚的卤化衍生物
2908999090-其他酚的硝化衍生物
2918290000-其他含酚基羧酸
2905199090-其他饱和一元醇 - 💡 提示:海关信息按照顺序优先匹配,如需确认的海关信息,请参考相关资料。
- 详情请参考:📖 海关编码查询和海关进出口税则
专利信息
专利号:US-4939112-A
优先权日:1988-10-06
标 题:Catalyst for synthesis of vesicular phenoxy resins
发明人:BENNETT EVERETT W
权利人:JAMES RIVER PAPER CO
摘要:A catalyst for synthesis of vesicular phenoxy resins is disclosed. The catalyst includes a water-insoluble complex of a hydric phenol and a quaternary ammonium or phosphonium salt of the hydric phenol. Preferably, the hydric phenol is an intermediate of the phenoxy resin being produced. Dihydric phenols, such as sulfonyldiphenol are preferred. The invention further relates to a reaction medium for polymerization of phenoxy resins including the above-described catalyst and a solvent medium capable of dissolving the phenoxy resins and otherwise not interfering with the polymerization reaction. The solvent medium is advantageously free of toxic Methyl Cellosolve.
专利号:US-6096853-A
优先权日:1998-12-21
标 题 :Synthesis of phenolic monomers containing imide or diimide moieties and high heat carbonate polymers prepared therefrom
发明人:AMERIK VALENTINA; HOEKS THEODORUS L; LIKIBI PARFAIT JEAN MARIE; NELSON MARK
权利人:GEN ELECTRIC
摘要:A process has been surprisingly discovered that can produce a high heat carbonate polymer (i.e., one with a Tg greater that 150° C.), without the drawbacks encountered in attempts to produce a high heat carbonate polymer. The process of the instant invention comprises the steps of: n (1) reacting an aromatic amine with a dihydric phenol to prepare an aminophenol; n (2) reacting an anhydride or dianhydride with the aminophenol to prepare a phenolic precursor; and n (3) reacting the phenolic precursor with a carbonate precursor to prepare a high heat carbonate polymer.
专利号:US-5068353-A
优先权日:1986-12-31
标题:Synthesis of aromatic bis(ether phthalimide) compounds
发明人:DELLACOLETTA BRENT A
权利人:GEN ELECTRIC
摘要:Aromatic bis(ether phthalimide) compounds of the formula (I): ##STR1## are synthesized by reacting a phthalimide of the formula (II): ##STR2## with a stoichiometric excess of an alkali metal diphenoxide salt of the formula (III): n n M--O--R.sub.2 --O--M (III) n n in the presence of a catalytic amount of a phase transfer catalyst, in a anhydrous nonpolar organic solvent under ether-forming conditions. Impurities are removed by solid-liquid separation techniques, such as filtering at a temperature at which the compound of formula (I) is substantially completely soluble while alkali metal salt impurities are substantially insoluble. The compound of formula (I) is recovered from the filtrate in high yields and at high purity.
专利号:WO-0037442-A1
优先权日:1998-12-21
标 题 :Synthesis of phenolic monomers containing imide or diimide moieties and high heat carbonate polymers prepared therefrom
专利号:US-7071145-B2
优先权日:2001-09-25
标 题:Thermosensitive recording material, and synthesis method of oligomer composition for the recording material
发明人:MORITA MITSUNOBU; HAYAKAWA KUNIO; TORII MASAFUMI; NARUSE MITSURU
权利人:RICOH KK
摘要:A thermosensitive recording material comprising a thermosensitive layer provided on a substrate, and the thermosensitive layer comprises as main ingredients a leuco dye and a developer to make colored state of said leuco dye when heated, wherein the developer is an oligomer composition obtained from the reaction of a polyvalent isocyanate compound represented by following Formula (I) with an aromatic amine represented by following Formula (II); n nwhere X represents a try- or more-valent group, a represents an integer numeral of 3 or more, b and c represent respectively integer numerals in the range of 0 to 5 and they satisfy a relation of b+c=1 to 5, Z represents hydrogen atom, alkyl group, allyl group or aryl group, and the aryl group may include condensed ling structure thereof, and d represents an integer numeral in the range of 0 to 4. This developer shows excellent reliabilities of both image and background area, and also shows an excellent color-developing characteristics (color developing sensitivity and image density).
专利号:CN-115108948-A
优先权日:2022-08-31
标题:Method for catalyzing synthesis of bisphenol S with modified solid catalyst