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    Production of dyeable polyacrylonitrile compositions and articles
    3.
    发明授权
    Production of dyeable polyacrylonitrile compositions and articles 失效
    可生产可聚合聚丙烯酸酯组合物和制品

    公开(公告)号：US3607817A

    公开(公告)日：1971-09-21

    申请号：US3607817D

    申请日：1967-03-09

    Applicant: CELANESE CORP

    Inventor： TRAPASSO LOUIS E ,  SMART CHARLES L

    IPC: C08L33/20 ,  C08F15/40 ,  C08F29/56 ,  C08F37/18

    CPC classification number: C08L33/20 ,  C08L2666/04

    Abstract: Dyeable (especially cationic-dyeable) acrylonitrile (AN) compositions and articles (e.g., films and filaments) are produced from blends of (I) a particular ternary or higher multicomponent AN polymer and (II) a copolymer of vinyl acetate and N,N-dimethylacrylamide wherein the latter constitutes from 1 to 90 percent by weight of the said copolymer. The polymer of (I) contains at least three different copolymerized monomers of the kind and in average percent mers, based on the total number of mers from individual monomers employed in making the copolymer, as follows: A. from 85 to 99 percent AN; B. from 1 to 14.5 percent of A. A VINYLIDENE HALIDE, OR B. A DYE DIFFUSION-PROMOTING, ETHYLENICALLY UNSATURATED MONOMER THAT IS COPOLYMERIZABLE WITH THE OTHER COMPONENTS OF THE COPOLYMER, E.G., VINYL ACETATE, ACRYLIC AND METHACRYLIC ACIDS, METHACRYLONITRILE, METHACRYLAMIDE, N-isooctylacrylamide, N,Ndimethylacrylamide, diacetone acrylamide and the monoallylether of trimethylolpropane, and C. from 0.15 percent to about 2 percent of a water-soluble salt of an organic sulfonic acid, e.g., vinylsulfonic, allylsulfonic, methallylsulfonic acids, and especially organic sulfonic acids wherein the sulfo group is separated from the ethylenic unsaturation by at least three carbon atoms, e.g., styrenesulfonic acid. The total of A, B and C is 100 percent. The amount of the copolymer of (II) that is blended with the AN polymer of (I) is, for example, from 2-15 wt. percent of the total of (I) and (II). The components may be dry-blended, but are preferably blended while dissolved in a common solvent, e.g., dimethylacetamide, The solutions can be cast to form cationic-dyeable films or wet-spun to form cationic-dyeable filamentary materials and other shaped articles.

    Dye additive for cellulose esters
    7.
    发明授权
    Dye additive for cellulose esters 失效
    DYE添加剂用于纤维素酯

    公开(公告)号：US3595601A

    公开(公告)日：1971-07-27

    申请号：US3595601D

    申请日：1968-03-04

    Applicant: CELANESE CORP

    Inventor： SMART CHARLES L

    IPC: D01F2/10 ,  D06P3/42

    CPC classification number: D01F1/10 ,  D01F2/30

    Abstract: SHAPED ARTICLES OF CELLULOSE ESTERS HAVING IMPROVED DYEABILITY AND PRINTABILITY COMPRISING A CELLULOSE ESTER HAVING INCORPORATED THEREIN A MINOR PROPORTION OF A VINYL ACETATE POLYMER HAVING A MOLECULAR WEIGHT BELOW ABOUT 15,000 AND A PROCESS FOR PRODUCING SAID SHAPED ARTICLES.

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