3.
    发明专利
    未知

    公开(公告)号:DE1570535A1

    公开(公告)日:1970-01-29

    申请号:DE1570535

    申请日:1965-01-23

    Applicant: HOECHST AG

    Abstract: Ethylene and vinyl sulphonamide are copolymerized in the presence of a free-radical-forming compound as catalyst at a pressure above 10 atmospheres. The polymerization is preferably carried out at a temperature of 20 DEG to 250 DEG C. in the presence of an inert solvent. The usual free-radical catalyst are used.

    6.
    发明专利
    未知

    公开(公告)号:DE1570538A1

    公开(公告)日:1970-01-29

    申请号:DE1570538

    申请日:1965-02-05

    Applicant: HOECHST AG

    Abstract: 1,128,304. Ethylene/maleic anhydride/dicyclopentadiene terpolymers. FARBWERKE HOECHST A.G. 7 Feb., 1966 [5 Feb., 1965], No. 5244/66. Heading C3P. A high molecular weight terpolymer of ethylene, maleic anhydride and 0À01-2À5% by wt. of dicyclopentadiene is claimed. The terpolymer may be prepared by copolymerizing the monomers in the presence of a free-radical initiator, e.g. benzoyl peroxide or azobisisobutyronitrile and a solvent or diluent, e.g. benzene, at an elevated temperature and preferably under an elevated pressure. In a comparative example the dicyclopentadiene was replaced by hexadiene-1,5.

    ORGANOTIN HALIDES AND A PROCESS FOR THEIR PREPARATION

    公开(公告)号:DE2860030D1

    公开(公告)日:1980-10-30

    申请号:DE2860030

    申请日:1978-07-28

    Applicant: HOECHST AG

    Abstract: The invention provides novel organotin halides obtained by reaction of tin and hydrogen chloride with those olefins which carry a carbonyl group in adjacent position to the olefinic double bond and which are substituted in addition by at least one carboxylate group not adjacent to the double bond.

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