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公开(公告)号：DE3238652A1
公开(公告)日：1983-05-05
申请号：DE3238652
申请日：1982-10-19
Applicant: BASF AG
Inventor： REFFERT RUDI WILHELM DIPL ING , BRONSTERT KLAUS DIPL CHEM DR , WULZ KLAUS DIPL CHEM DR , GOETHLICH LUTZ DIPL ING DR , RATH HANS PETER DIPL CHEM DR , WEISS STEFAN DIPL CHEM DR , HETTCHE ALBERT DIPL CHEM DR
Abstract: The process for the preparation of oxidised polymers of ethylene or copolymers of ethylene with other 1-olefins, such as 1-butene, by means of oxygen or oxygen-containing gases in aqueous suspension at temperatures below the crystallite melting point of the (co)polymers in the presence of small amounts of a quaternary ammonium or phosphonium salt.
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Patent Agency Ranking
公开(公告)号：DE3217564A1
公开(公告)日：1983-11-17
申请号：DE3217564
申请日：1982-05-11
Applicant: BASF AG
Inventor： REFFERT RUDI WILHELM DIPL ING , HAMBRECHT JUERGEN DIPL CHEM DR , NAARMANN HERBERT DIPL CHEM DR , KANIG GERHARD PROF DIPL CHEM D , ROTTLER RUDOLF DIPL CHEM DR
Abstract: The invention relates to a process for the removal of the catalyst in the preparation of high-molecular-weight polyphenylene ethers from monohydric phenols by oxidative coupling reaction with oxygen in the presence of a catalyst complex comprising a metal salt and an organic amine in the presence of a solvent, and removal of the metal ion component of the catalyst from the polyphenylene ether solution, the removal of the metal ion component of the catalyst being carried out by means of high-polymeric, crosslinked cation exchanger resins, which may also be fibrous, characterised in that the cation exchanger is fibrous. The removal of the metal ion component is expediently carried out from a polyphenylene ether solution containing less than or equal to 100 mg/kg of catalyst metal ions per mg/kg of catalyst metal ions.
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公开(公告)号：DE3324338A1
公开(公告)日：1985-01-17
申请号：DE3324338
申请日：1983-07-06
Applicant: BASF AG
Inventor： BERGER ROSEMARIE DIPL ING , DREHER HERMANN DR , REFFERT RUDI WILHELM DIPL ING , HAMBRECHT JUERGEN DR , HEIL EDUARD DIPL ING , SWOBODA JOHANN DR , ECHTE ADOLF DR , SIEBEL HANS-PETER DR
Abstract: The catalyst is removed in the preparation of high molecular weight polyphenylene ethers from monohydric phenols, which are alkyl-substituted at the two ortho-positions but not at the para-position and may or may not be alkyl-substituted at the meta-position, by an oxidative coupling reaction with oxygen at from 15 DEG to 50 DEG C. in the presence of a catalyst complex obtained from a copper salt and an organic amine, in the presence of from 1 to 20 parts by weight of a solvent per part by weight of the monomeric phenol, and in the presence or absence of an activator, and removal of the metal component of the catalyst from the polyphenylene ether solution with a complex-forming or chelate-forming compound in aqueous solution, in the presence or absence of reducing and stabilizing substances and assistants for accelerating the interphase reactions and for phase separation, by a method in which the continuous removal of the copper catalyst is carried out in one or more mixer-settler stages at a phase volume ratio of the organic phase to the aqueous phase of from 1:0.1 to 1:1.0, preferably from 1:0.4 to 1:0.6.
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公开(公告)号：DE3215911A1
公开(公告)日：1983-11-03
申请号：DE3215911
申请日：1982-04-29
Applicant: BASF AG
Inventor： REFFERT RUDI WILHELM DIPL ING , HAMBRECHT JUERGEN DIPL CHEM DR , JUNG RUDOLF H DIPL CHEM DR , ECHTE ADOLF DIPL CHEM DR
Abstract: (Co)polymers which are composed of one or more monomers from the group comprising (a) the vinyl-aromatic monomers and (b) the ethylenically unsaturated monomers and furthermore contain one or more monomer components (a) or (b), or (a) and (b), as unreacted residual monomers are treated at above the glass temperature of the (co)polymer and in the presence of one or more assistants, which have been added to the (co)polymer. The assistant used is a bicyclic compound of the general formula I where X is a methylene, ethylene, 1,1-ethenyl, 1,2-ethenyl, carbonyl, azo, amino, ether or thioether group which is unsubstituted or substituted by halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyl, carboxyalkyl, an ether group or a thioether group, R1, R2, R3 and R4 are each hydrogen, halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyalkyl or nitrile, R5 and R6 are each hydrogen, halogen, alkyl or carboxyalkyl, and R7 and R8 are each hydrogen, halogen, alkyl, alkenyl, aryl, carboxyalkyl, carboxyl or nitrile.
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公开(公告)号：DE3140025A1
公开(公告)日：1983-04-21
申请号：DE3140025
申请日：1981-10-08
Applicant: BASF AG
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公开(公告)号：DE3131440A1
公开(公告)日：1983-02-24
申请号：DE3131440
申请日：1981-08-07
Applicant: BASF AG
Inventor： HINSELMANN KLAUS DIPL ING , NAARMANN HERBERT DIPL CHEM DR , ECHTE ADOLF DIPL CHEM DR , HEIL EDUARD DIPL ING , NIKLES ALBERT DIPL ING , REFFERT RUDI WILHELM DIPL ING , HAMBRECHT JUERGEN DIPL CHEM DR
IPC: C08L7/00 , B29C35/00 , B29C45/00 , C08G65/46 , C08J3/00 , C08J3/20 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L71/00 , C08L71/12 , C08L101/00 , C08L71/04 , B01D1/26
Abstract: Molding materials containing high molecular weight polyphenylene ethers are produced by a process in which a solution of a polyphenylene ether in an organic solvent, together with another polymer, is freed of solvent by multi-stage evaporation. The solvent is preferably an aromatic compound from the class comprising the hydrocarbons, halohydrocarbons, ethers or esters, the ratio of the other polymer to the polyphenylene ether is advantageously from 99:1 to 20:80 parts by weight, the other polymer is, in particular, a homopolymer or copolymer of styrene or of a homolog thereof, which may be modified with rubber, and the multi-stage evaporation process preferably comprises not less than two and not more than four working up stages. The evaporation is carried out in general at from 120 DEG to 280 DEG C. and under a pressure of from 1 to 3,000 mbar, advantageously in the presence of assistants which reduce the partial pressure, eg. water and/or methanol.
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