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    Process for the preparation of homopolymers and/or copolymers of acetylene
    4.
    发明专利
    Process for the preparation of homopolymers and/or copolymers of acetylene 未知

    公开(公告)号：DE3221075A1

    公开(公告)日：1983-12-08

    申请号：DE3221075

    申请日：1982-06-04

    Applicant: BASF AG

    Inventor： NAARMANN HERBERT DIPL CHEM DR ,  KOEHLER GERNOT DIPL ING DR ,  SIMAK PETR DIPL CHEM DR

    IPC: C08F4/06 ,  C08F4/16 ,  C08F4/48 ,  C08F4/50 ,  C08F38/02 ,  C08F4/52

    Abstract: The invention relates to a process for the preparation of homopolymers and copolymers of acetylene by homopolymerisation or copolymerisation of acetylene with dialkynes or polyalkynes or substituted alkynes with the aid of a metal-containing catalyst combination, where the catalyst combination used is a mixture of aluminium hydride and/or magnesium hydride or complex hydrides thereof and organic derivatives of metals of sub-group IV of the Periodic Table of the Elements. In the process, metal carbonyls can be added to the catalyst combinations. The mixing ratio between the hydrides of complex hydrides and the metal derivatives is expediently between 1:1 and 1:20 mole parts and the mixing ratio between metal carbonyls and the hydride component is from 0.5:1 to 1:0.5 parts by weight.

    5.
    发明专利
    未知

    公开(公告)号：DE3215909A1

    公开(公告)日：1983-11-03

    申请号：DE3215909

    申请日：1982-04-29

    Applicant: BASF AG

    Inventor： NISSEN DIETMAR DIPL CHEM DR ,  SCHOENLEBEN WILLIBALD DIPL CHE ,  MARX MATTHIAS DIPL CHEM DR ,  ILLERS KARL HEINZ DIPL PHYS DR ,  SIMAK PETR DIPL CHEM DR

    IPC: B29C67/24 ,  C08G18/32 ,  C08G18/50 ,  C08G18/65 ,  C08G18/66 ,  C08G18/00 ,  C08G18/14

    Abstract: 1. A process for the preparation of molded parts based on polyurea elastomers by reacting a) organic polyisocyanates, b) polyether polyamines, and c) alkyl-substituted aromatic diamines, wherein the polyether polyamines (b) used are polyoxyalkylene polyamines having a molecular weight of from 1 100 to 16 000 and the general structural formulae H2 N-(R**2 O)x -R**1 -NH2 H2 N-R**1 -(OR**2 )x -NH-(R**2 O)y -R**1 -NH2 see diagramm : EP0093334,P12,F1 and/or see diagramm : EP0093334,P12,F2 where R**1 and R**2 are identical or different optionally substituted alkylene radicals of 2 to 10 carbon atoms, the alkylene radicals R**2 of the alkoxy groups also being identical or different, T is a radical or a trifunctional initiator molecule for the alkylene oxide polymerization, which radical does not contain any reactive hydrogen atoms, and x, x', z, z', y and y' are identical or different integers greater than 0, and the alkyl-substituted aromatic diamines (c) used are meta-phenylene diamines of the formulae see diagramm : EP0093334,P12,F3 and/or see diagramm : EP0093334,P12,F4 where R**3 is a branched alkyl of up to 10 carbon atoms, in which the branching point is at the C1 -carbon atom, and R**4 and R**5 are identical or different alkyls of 1 to 3 carbon atoms, and/or diaminodiphenyl-methanes of the formula see diagramm : EP0093334,P13,F1 where R**6 , R**7 , R**8 and R**9 are identical or different and each denote methyl, ethyl, propyl, isopropyl, sec-butyl and tert-butyl, but at least one of the radicals is isopropyl or sec-butyl.

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