CAS: 1844-01-5; 4,4'-(Diphenylmethylene)Diphenol

上下游产品

CAS号615575-22-9 4-hydroxy-4'-me... | CAS号59550-02-6 [diphenoxy(phen... | CAS号14470-28-1 4-甲氧基氯化三苯甲烷 | CAS号108-95-2 苯酚 | CAS号2051-90-3 二氯二苯甲烷 | CAS号71-43-2 苯 | CAS号15658-11-4 (4-羟苯基)二苯基甲醇 | CAS号7647-01-0 盐酸 | CAS号119-61-9 二苯甲酮 | CAS号100-67-4 苯酚钾 | CAS号61675-52-3 4-methyl-N-[4-[...

二氯二苯甲烷置于盐酸体系中,化学反应生成4,4'-二苯亚甲基双酚
参考文献:Gomberg; Jickling,Journal Of The American Chemical Society,1915,Vol. 37,P. 2577
标题:Gomberg; Jickling,Journal Of The American Chemical Society,1915,Vol. 37,P. 2577

专利信息

专利号:US-6596840-B1
优先权日:1999-07-19
标题 :Method for producing modified polycarbonates
发明人：KRATSCHMER SILKE; HUCKS UWE; BUNZEL LOTHAR
权利人:BAYER AG
摘要:A process for the synthesis of polycarbonate is disclosed. The process entails reacting in the presence of at least one phosphonium salt as catalyst, at least one diphenol, at least one carbonic acid diester, and at least one alkyl group-substituted phenol chain terminator. The chain terminator is introduced in free form or as a transesterifiable compound under the conditions of the synthesis. The polycarbonate thus produced is suitable for preparing a variety of molded articles.

专利号:EP-3169658-A1
优先权日:2014-07-15
标题 :Synthesis of bisphenols

专利号:US-9850345-B2
优先权日:2012-05-24
标题:Polycarbonate polyol compositions and methods
发明人：FARMER JAY J
权利人:SAUDI ARAMCO TECH CO
摘要:In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO 2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having one or more sites capable of initiating copolymerization of epoxides and CO 2 , wherein the chain transfer agent contains one or more masked hydroxyl groups. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups, a high percentage of carbonate linkages, and substantially all polycarbonate chains having hydroxyl end groups have no embedded chain transfer agent.

专利号:US-9809678-B2
优先权日:2008-09-08
标 题:Polycarbonate polyol compositions and methods
发明人：ALLEN SCOTT D; COATES GEOFFREY W; CHERIAN ANNA E; SIMONEAU CHRIS A; GRIDNEV ALEXEI A; FARMER JAY J
权利人:NOVOMER INC; SAUDI ARAMCO TECH CO
摘要:In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO 2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.

专利号:WO-2018191612-A1
优先权日:2017-04-14
标 题 :Synthesis of a phosphorous containing monomer and the incorporation in polycarbonate by interfacial polymerization thereof

专利号:US-3944575-A
优先权日:1974-05-30
标题 :Aryl ether compounds and their synthesis
发明人：VILLAESCUSA FRANK W; BRELAND JOHN G; ARNOLD FRED E
权利人:US AIR FORCE
摘要:Tetranitro aryl ether compounds are prepared by aromatic nucleophilic substitution of various aryl diols with 4-fluoro-1,2-dinitrobenzene. By reducing the nitro moieties of the tetranitro compounds, tetraamino aryl ether compounds are obtained. These latter compounds are useful as monomers in preparing thermally stable polymers having good solubility parameters.