CAS: 24197-34-0; 4,4'-Thiobis(2-Methylphenol)

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CAS号95-48-7 邻甲酚 | CAS号16346-97-7 4,4-磺酰二(2-甲基苯酚) | CAS号69154-63-8 4-(4-hydroxy-3-...

📜邻甲酚置于sulphur Dichloride,Sodium Carbonate体系中,用 正己烷,氯苯 用作溶剂,化学反应生成双(4-羟基-3-甲苯基)硫醚
参考文献:Process Of Producing High Purity Bis(4-Hydroxyphenyl)Sulfides And
标题:Process Of Producing High Purity Bis(4-Hydroxyphenyl)Sulfides And
摘要:生产高纯度双(4-羟基苯基)硫化物的过程包括在有机溶剂中将苯酚与二氯化硫反应,改进包括:在非极性有机溶剂中将苯酚与二氯化硫反应;反应后部分或完全去除非极性有机溶剂;在升高的温度下向反应混合物中加入极性有机溶剂以溶解反应混合物;结晶出高纯度的双(4-羟基苯基)硫化物.还提供了一种高性能的热敏记录材料,其中包括经过上述方法制备的熔点在123.9oc至124.9oc范围内的高纯度双(4-羟基-3-甲基苯基)硫化物作为显影剂和氟兰化合物作为色发生剂.

专利信息

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:US-2003153460-A1
优先权日:2001-09-25
标 题:Thermosensitive recording material, and synthesis method of oligomer composition for the recording material

专利号:US-6350846-B1
优先权日:2001-05-31
标 题:Aromatic-aliphatic copolycarbonates and method
发明人：HAIT SUKHENDU BIKASH
权利人:GEN ELECTRIC
摘要:The present invention discloses improved copolycarbonates and methods for their synthesis that involve the incorporation of aliphatic diol carbonates into copolycarbonate chains under solid state polymerization conditions. More particularly, the present invention utilizes diphenyl carbonate in the production of copolycarbonates that exhibit modified thermal properties(lower Tg) relative to analogous simple copolycarbonates. The solid sate polymerization technique possesses a distinct advantage over melt polymerization in that no specialized melt polymerization equipment is required.

专利号:US-2005079976-A1
优先权日:2001-09-25
标题 :Thermosensitive recording material, and synthesis method of oligomer composition for the recording material

专利号:US-2004242414-A1
优先权日:2001-09-25
标题:Thermosensitive recording material, and synthesis method of oligomer compositon for the recording material

专利号:US-6878671-B2
优先权日:2001-09-25
标题 :Thermosensitive recording material, and synthesis method of oligomer composition for the recording material