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    Method for the production of cellulosic fibres having a high resistance to combustion, and textile products prepared by said method
    35.
    发明授权
    Method for the production of cellulosic fibres having a high resistance to combustion, and textile products prepared by said method 失效
    具有高耐燃性的纤维素纤维的生产方法和通过所述方法制备的纺织品

    公开(公告)号：US4083833A

    公开(公告)日：1978-04-11

    申请号：US703592

    申请日：1976-07-08

    Applicant: Francesco Siclari ,  Pietro Paolo Rossi ,  Roberto Leoni ,  Mario De Gaetano

    Inventor： Francesco Siclari ,  Pietro Paolo Rossi ,  Roberto Leoni ,  Mario De Gaetano

    IPC: D01F2/08 ,  C08L1/06 ,  D01F2/10 ,  C08F28/00 ,  C08F30/02 ,  C08F230/02

    CPC classification number: D01F2/10 ,  C08L1/06

    Abstract: There is described the preparation of a flameproofing compound useful in 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.

    Abstract translation: 描述了可用于生产具有高燃烧性的纤维素纤维的防火化合物的制备，所述制备方法包括用饱和醇处理磷腈卤化物，用不饱和醇处理由此获得的含卤素烷氧基衍生物，并共聚合 由不饱和酸形成的烷基取代的烷氧基衍生物产物，形成碱性水溶液 - 悬浮液，其适于与脱乙酸纤维素的碱性水溶液容易地和紧密地混合，以获得在纤维素中共凝固的可透过组分的粘性物质 芒果素凝固浴。 在其横截面中获得包括防火化合物的基本均匀的纱线。

    Process for producing phosphazene fire retardant
    36.
    发明授权
    Process for producing phosphazene fire retardant 失效
    生产磷酸盐阻燃剂的方法

    公开(公告)号：US4081593A

    公开(公告)日：1978-03-28

    申请号：US652639

    申请日：1976-01-26

    Applicant: Carroll W. Lanier ,  James T. F. Kao

    Inventor： Carroll W. Lanier ,  James T. F. Kao

    IPC: C08G79/02 ,  C08L1/06 ,  C08B16/00 ,  D06M13/26 ,  D06M15/00

    CPC classification number: C08G79/025 ,  C08L1/06 ,  Y10S260/24

    Abstract: A process for producing fire retardant phosphonitrilate polymers by reacting phosphonitrilic halide with a hydroxyl compound such as an aliphatic or aromatic alcohol at not more than about 40.degree. C in the presence of an acid acceptor, such as pyridine, under conditions such that a relatively low concentration of the hydroxyl compound is present during the initial 1/2 to 3 hours of the reaction and the reaction conditions are maintained at from 20.degree.-50.degree. C for a period of 1/2 to 120 hours and, optionally, further heating the reaction mixture to a temperature of 40.degree.-80.degree. C for 1/2 to 81/2 hours. The phosphonitrilate polymers are suitable for fire retarding cellulosic materials such as regenerated cellulose, rayon and the like.

    Method of producing a cellulose hemodialysis membrane
    37.
    发明授权
    Method of producing a cellulose hemodialysis membrane 失效
    生产纤维素HEMODIALYSIS膜的方法

    公开(公告)号：US3591667A

    公开(公告)日：1971-07-06

    申请号：US3591667D

    申请日：1970-03-16

    Applicant: UNIV UTAH

    Inventor： KULSHRESTHA VIRENDRA KUMAR

    IPC: B01J39/22 ,  C08L1/00 ,  C08L1/06 ,  C08B1/00 ,  C08B29/24

    CPC classification number: B01D71/10 ,  C08L1/06

    Abstract: THE INVENTION DISCLOSED HEREIN RELATES TO A NOVEL METHOD FOR PRODUCING A RAGENERATED CELLULOSE HEMODIALYSIS MEMBRANE. THE CELLULOSE IS DISSOLVED IN A CUPRIETHYLENEDIAMINE HYDROXIDE SOLUTION AND THEN CAST INT A FILM AND SUITABLY TREATED TO PRODUCE A HEMODIALYSIS MEMBRANE OF IMPROVED PERMEABILITY AND ULTRAFILTRATION. CUENOPHANE IS THE NAME CHOSEN BY THE INVENTOR TO BE APPLIED TO THIS REGENERATED CELLULOSE MEMBRANE.

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