CAS: 2089-89-6; Naphthalene-2,7-Dicarboxylic Acid

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2549-47-5 1141-38-4 5084-45-7

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CAS号58556-75-5 2,7-二溴萘 | CAS号124-38-9 二氧化碳 | CAS号582-16-1 2,7-二甲基萘 | CAS号201230-82-2 carbon monoxide | CAS号582-17-2 2,7-二羟基萘 | CAS号39718-11-1 2,7-二氰基萘 | CAS号91-20-3 萘 | CAS号67-63-0 异丙醇 | CAS号179756-49-1 7-formylnaphtha... | CAS号39718-11-1 2,7-二氰基萘

2,7-二甲基萘置于sodium Dichromate体系中,用 水 用作溶剂,化学反应生成2,7-萘二羧酸
参考文献:分散介质中 1,8-萘二甲酸二钾的锌 (II) 催化汉克尔反应
标题:分散介质中 1,8-萘二甲酸二钾的锌 (II) 催化汉克尔反应
摘要:与没有分散介质的反应相比,1,8-萘二甲酸二钾在作为分散介质的萘中的汉克尔反应以更高的收率和更好的重现性得到了 2,6-萘二甲酸二钾 (1).详细研究了催化剂,特别是锌催化剂.锌催化剂的阴离子部分影响反应,卤化物阴离子对1的选择性形成有效.在锌催化剂中加入卤化钾也提高了1的收率.卤化物阴离子的催化活性依次增加; 氯-
Doi:10.1246/bcsj.62.786

专利信息

专利号:US-10047195-B2
优先权日:2012-04-02
标题:Monomers bearing associative groups for the synthesis of supramolecular polycondensates
发明人：GILLET JEAN-PHILIPPE; DISSON JEAN-PIERRE; VAN HEMELRYCK BRUNO
权利人:ARKEMA FRANCE
摘要:The present invention relates to the use of monomers bearing associative groups in order to manufacture a supramolecular polycondensate, to certain of these monomers, to a process for manufacturing a supramolecular polycondensate, to the polycondensate obtained, and also to an article or a composition incorporating same. The associative groups may be, for example, imidazolidone, urea or triazole groups.

专利号:US-9951181-B2
优先权日:2013-10-21
标题:Polyamides containing the bio-based 2,5-furandicarboxylic acid
发明人：SMITH DEEDEE; FLORES JOEL; ABERSON RENÉ; DAM MATHEUS ADRIANUS; DUURSMA ATE; GRUTER GERARDUS JOHANNES M
权利人:FURANIX TECHNOLOGIES BV; SYNVINA C V
摘要:Polyamides are made from the polycondensation of monomers including from 15 to 80 mol % of 2,5-furandicarboxylic acid (FDCA), from 20 to 85 mol % of at least one aromatic dicarboxylic acid and from 50 to 100 mol % of at least one aliphatic diamine selected from those including 6 and 7 carbon atoms. A process allowing the synthesis of high molecular weight polyamides made from the above mentioned monomers is also described. Finally, compositions and articles including the same polyamides are also disclosed.

专利号:WO-2020238440-A1
优先权日:2019-05-24
标 题:Semi-aromatic polyamide, method for synthesis thereof, and polyamide molding composition consisting thereof
发明人：HUANG XIANBO; ZHANG CHUANHUI; YE NANBIAO; CAO MIN; JIANG SUJUN; ZHOU ZHUXIN; YAN KUN; PENG ZHONGQUAN
权利人:KINGFA SCIENCE & TECHNOLOGY CO; ZUHAI VANTEQUE SPECIALTY ENG PLASTICS CO LTD
摘要:Provided is a semi-aromatic polyamide, comprising, on the basis of the molar content of all repeating units, the following repeating units: 46‑54 mol% of 10T unit derived from 1,10‑diaminodecane and terephthalic acid, 46-54 mol% derived from one or more monomers in diacid Y containing 4-36 carbon atoms, and XY unit consisting of one or more monomers in diamine X containing 4-36 carbon atoms; the 10T unit and XY unit in the semi-aromatic polyamide chain segment are arranged in an alternating order ... 10TXY10TXY10TXY 10TXY10TXY ...; the semi-aromatic polyamide at least contains three monomers. In the semi-aromatic polyamide prepared by means of the special preparation method, 10T and XY units are arranged alternately, and in comparison with ordinary random copolymerized semi-aromatic polyamides, it has higher crystallinity and a higher melting point, and the water absorption rate is low.

专利号:US-8278020-B2
优先权日:2008-09-10
标题 :Polyester synthesis
发明人：WOSNICK JORDAN H
权利人:WOSNICK JORDAN H; XEROX CORP
摘要:The present disclosure provides methods for modifying polymeric resin materials after polymerization to make fine adjustments in the chemical or physical properties of the resin, or in modifying the structure of the polymer chains. The resulting resins may be useful in forming toner particles. In embodiments, a polymeric resin may have epoxy groups added to its backbone to increase its melting point. The resulting polymer, sometimes referred to herein as an epoxidized polymer, may, in turn, be reacted with wax-like components, to increase the compatibility of the polyester with waxes utilized in forming toner particles. In other embodiments, the resulting epoxidized polymer may be reacted with components possessing carboxylic acid groups to adjust the acid value and weight average molecular weight of the resin.

专利号:EP-0215364-B1
优先权日:1985-09-09
标题:Process for the preparation of fast crystallizing polyester compositions
摘要:A process wherein, in a first step, a highly nucleated polyester is prepared with addition of from 2x10<-><2> mol to 1 mol of alkali metal or alkaline earth metal, an alkali metal compound or an alkaline earth metal compound per kg of the polyester to be prepared, at any desired point of the synthesis and subsequently, in a second step, this highly nucleated polyester is admixed with a non-nucleated polyester of the same or different chemical composition to give a rapidly crystallising polyester. The polyesters according to the invention are distinguished, in particular, by improved colour quality and increased processing stability.

专利号:US-8394568-B2
优先权日:2009-11-02
标 题 :Synthesis and emulsification of resins
发明人：QIU SHIGANG; FAUCHER SANTIAGO; ABATE JOHN; CHEN ALLAN; ZHOU KE
权利人:QIU SHIGANG; FAUCHER SANTIAGO; ABATE JOHN; CHEN ALLAN; ZHOU KE; XEROX CORP
摘要:The present disclosure provides processes for producing resins suitable for use in forming toner compositions. In embodiments, the processes described herein comprise formation of latexes, including latexes for use in toners, produced without use of solvents.