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    5.
    发明专利
    未知

    公开(公告)号：DK311076A

    公开(公告)日：1977-01-12

    申请号：DK311076

    申请日：1976-07-09

    Applicant: SNIA VISCOSA

    Inventor： SICLARI F ,  ROSSI P P ,  LEONI R ,  GAETANO M

    IPC: D01F2/08 ,  C08L1/06 ,  D01F2/10 ,  D01F

    Abstract: There is described the preparation of a flameproofing compound useful in the production of cellulosic fibres having a high resistance to combustion, said preparation comprising treating a phosphonitrile halide with a saturated alcohol, treating the halogen containing alkoxy derivative thus obtained with an unsaturated alcohol, and copolymerizing the alkyl substituted alkoxy derivative product thus obtained with an unsaturated acid, forming an alkaline aqueous solution-suspension adapted to be easily and intimately mixed with alkaline aqueous solutions of cellulose xantogenate to obtain a viscous mass of cospinnable components which are co-coagulable in a cellulose xantogenate coagulating bath. Obtaining essentially homogeneous yarns including the flameproofing compound in their cross-sections.

    8.
    发明专利
    未知

    公开(公告)号：IT1033134B

    公开(公告)日：1979-07-10

    申请号：IT2059075

    申请日：1975-02-25

    Applicant: SNIA VISCOSA

    Inventor： SICLARI F ,  ROSSI P P ,  GAETANO DE M

    IPC: C07B61/00 ,  B01J23/00 ,  C07B31/00 ,  C07C67/00 ,  C07C227/00 ,  C07C227/06 ,  C07C227/08 ,  C07C227/10 ,  C07C229/08 ,  C07C

    Abstract: The specification describes a process for preparing saturated omega-aminoacids from olefinically unsaturated omega-aldehydoacids. According to the invention, the starting aldehydoacid is transformed into the corresponding iminoacid, and this is subjected to the hydrogenation both of the imino function and of the ethylenic double bond or double bonds, in a single stage and in the presence of an hydrogenation catalyst. The catalyst is a transition metal of one of the first two sub-groups of the VIII group of the periodic system, viz. is chosen among Fe, Ru, Os, Co, Rh, and Ir, and is used in the metal state or as a compound.

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