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    11.
    发明专利
    未知

    公开(公告)号：FR1402694A

    公开(公告)日：1965-06-11

    申请号：FR983920

    申请日：1964-07-31

    Applicant: BASF AG

    Inventor： HRUBESCH ADOLF

    IPC: C07C45/88

    Stabilised macromolecular polyformaldehyde and process
    15.
    发明专利
    Stabilised macromolecular polyformaldehyde and process 未知

    公开(公告)号：GB895115A

    公开(公告)日：1962-05-02

    申请号：GB4189660

    申请日：1960-12-06

    Applicant: BASF AG

    Inventor： HELLMAYR WOLFGANG ,  HRUBESCH ADOLF

    IPC: C08K5/30

    Abstract: Polyformaldehyde with its end groups esterified or etherified is stabilized by the addition of 0,05 to 10% of its weight of a hydrazone of formula in which R1, R2 and R3 are alkyl, cycloalkyl, aryl or aralkyl radicals which may be substituted and R1 and R2 together may be a divalent aliphatic radical which may also contain hetero atoms. One or more polyamides, preferably in amount 0,1 to 10% of the polyformaldehyde may also be present. Solvents such as acetone, petroleum ether benzene, carbon tetrachloride, methanol and ethanol may be used.

    Production of branched and/or crosslinked copolymers from olefinically unsaturated monomers
    18.
    发明专利
    Production of branched and/or crosslinked copolymers from olefinically unsaturated monomers 未知

    公开(公告)号：GB895621A

    公开(公告)日：1962-05-02

    申请号：GB4241160

    申请日：1960-12-09

    Applicant: BASF AG

    Inventor： HRUBESCH ADOLF ,  CRAUBNER HANS

    IPC: C08F20/60 ,  C08F20/62 ,  C08F22/36 ,  C08F26/00 ,  C08F220/06 ,  C08F226/02

    Abstract: Branched and cross-linked polymers are produced by copolymerizing (1) one or more olefinically unsaturated monomers, e.g. acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, acrylic and methacrylic acids and their esters with methanol, ethanol, propanol, isopropanol, n-butanol, 2-ethylhexanol, cyclohexanol, cyclooctanol, decyl alcohol and lauryl alcohol, styrene, o-chlorostyrene, vinyltoluenes, a -methylstyrene, vinyl acetate, vinyl propionate, ethylene, propylene, butylene-1, butylene-2, isobutylene, butadiene, 2-chlorobutadiene, isoprene, vinyl chloride, vinylidene chloride, vinyl sulphonic acids, and vinyl methyl, isobutyl, hexyl, 2-ethylhexyl, decyl and lauryl ethers, with (2) an N-nitrosoamide which contains in the molecule at least one olefinic double bond. N-nitrosoamides specified include N-nitroso-N-(2-ethylhexyl)-maleic acid monoamide, N-nitroso-N-benzoyl-maleic acid monoamide, 1-nitroso-5-vinyl-5-isopropenylbarbituric acid, 1:3-dinitroso-5-vinyl-5-cyclohexenylbarbituric acid, and N-nitrosomethylene-bis-methacrylamide. Bulk, solution or emulsion polymerization may be effected using peroxides, azo-bis-isobutyronitrile, boron trifluoride, aluminium chloride, or thermal or photochemical excitation (using azo-bis-isobutyronitrile or perchlormethyl mercaptan as sensitizer). Copolymerization can be carried out at lower temperatures by adding small amounts of sodium, potassium or calcium hydroxide, sodium or potassium carbonate, sodamide, lithium, sodium or potassium alcoholates, methanol, ethanol, propanol, isopropanol, n-butanol, piperidine, pyridine, diethylenetriamine, or ethanolamines.ALSO:N - Nitroso - N - (2 - ethylhexyl) maleic acid monoamide is prepared by nitrosating N-(2-ethylhexyl)-maleic acid monoamide using dinitrogen trioxide. The reaction is carried out between 0 DEG C. and 5 DEG C. in suspension in chloroform.

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