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    94.
    发明专利
    未知

    公开(公告)号：DE3669518D1

    公开(公告)日：1990-04-19

    申请号：DE3669518

    申请日：1986-11-24

    Applicant: BASF AG

    Inventor： KOCK HANS-JAKOB DR ,  PORTUGALL MICHAEL DR ,  HAMBRECHT JUERGEN DR

    IPC: C08G63/60 ,  C09K19/38

    Abstract: Wholly aromatic polyesters which form a liquid-crystalline fiber-forming melt below 300 DEG C. and are composed of (a) from 10 to 25 mol % of repeat units of the formula I I (b) from 5 to 15 mol % of repeat units of the formula II II (c) from 5 to 15 mol % of repeat units of the formula III III (d) not less than 10 mol % of repeat units of the formula IV IV and (e) a molar amount corresponding to the total amount of (a), (b) and (c) of repeat units of the formula V V the molar proportions of components a, b, c, d and e adding up to 100 mol % in each case, the preparation thereof and fibers, films, moldings and surface coatings prepared therefrom.

    PROCESS FOR THE PREPARATION OF POLY(PHENYLENE ETHERS) AND THEIR USE FOR THE PRODUCTION OF MOULDED ARTICLES
    98.
    发明专利
    PROCESS FOR THE PREPARATION OF POLY(PHENYLENE ETHERS) AND THEIR USE FOR THE PRODUCTION OF MOULDED ARTICLES 未知

    公开(公告)号：DE3560286D1

    公开(公告)日：1987-07-30

    申请号：DE3560286

    申请日：1985-04-01

    Applicant: BASF AG

    Inventor： MUENCH VOLKER DR ,  HAMBRECHT JUERGEN DR ,  HIMMELE WALTER DR ,  ECHTE ADOLF DR ,  SWOBODA JOHANN DR

    IPC: C08G65/44 ,  C08L71/04

    Abstract: High molecular weight polyphenylene ethers are prepared from monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a solvent and of a catalyst complex consisting of a copper salt and an organic amine of the general formula where R1 is C2-C20-alkylidene, preferably C2-C12-alkylidene, or alkenylidene, R2 is H or C1-C12-alkyl, preferably C1-C4-alkyl, or C5-C8-cycloalkyl, each of which is unsubstituted or substituted by functional groups, and n is an integer from 1 to 4, preferably 1 or 2. Preferred functional groups are -OR3, -NHR3 or -SR3, in which R3 is H C1-C12-alkyl or C5-C8-cycloalkyl, and the most suitable amines are 3-tert.-butoxypropylamine, 4-tert.-butoxybutylamine, 3-tert.-butoxy-2-methylpropylamine, 3-tert.-butoxy-2,3-dimethylpropylamine, 3-tert.-butoxy-2-methyloctylamine and N-methyl-N-(4-tert.-butoxybutyl)-amine. The polyphenylene ethers can be processed to moldings by a thermoplastic method.

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