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    Process of making fibers or films of regenerated cellulose
    58.
    发明授权
    Process of making fibers or films of regenerated cellulose 失效
    制造纤维或再生纤维素膜的方法

    公开(公告)号：US5571468A

    公开(公告)日：1996-11-05

    申请号：US466590

    申请日：1995-06-06

    Applicant: Jean-Paul Meraldi ,  Vlastimil Cizek ,  Rima Huston

    Inventor： Jean-Paul Meraldi ,  Vlastimil Cizek ,  Rima Huston

    IPC: B60C1/00 ,  B60C9/00 ,  C08J3/09 ,  C08J5/18 ,  C08L1/00 ,  C08L1/10 ,  D01D5/06 ,  D01F2/28 ,  B29C47/00 ,  D01D10/06

    CPC classification number: C08J3/091 ,  B60C9/0042 ,  C08L1/10 ,  D01F2/28 ,  C08J2301/10 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/2965

    Abstract: A process for producing a fiber or film of regenerated cellulose from a composition having a base of cellulose formate is provided. The composition is characterized by the following: (1) the composition is a solution; (2) the concentration of cellulose formate in the composition is at least 8% by weight; (3) the degree of substitution of the cellulose by formate groups is greater than 20% and (4) the composition contains one or more compounds selected from among alkylsulfoxides, lactams, acrylic amides and cyclic derivatives of urea as a solvent. The process for producing the fiber or film involves (i) transforming the composition into a liquid extrudate having the form of a fiber or film at a temperature at which the solution is isotropic at rest; (ii) coagulating the liquid extrudate; (iii) regenerating the cellulose of the fiber or film obtained and (iv) washing and drying the regenerated cellulose fiber or film.

    Abstract translation: 提供了由具有甲酸纤维素碱的组合物制备再生纤维素的纤维或膜的方法。 组合物的特征如下：（1）组合物为溶液; （2）组合物中甲酸纤维素的浓度为至少8重量％; （3）甲酸酯基纤维素的取代度大于20％，（4）组合物含有一种或多种选自烷基亚砜，内酰胺，丙烯酰胺和尿素作为溶剂的环状衍生物的化合物。 制造纤维或薄膜的方法包括：（i）将组合物转变成具有纤维或薄膜形式的液体挤出物，所述液体挤出物在溶液各向同性静止的温度下; （ii）使液体挤出物凝结; （iii）使得到的纤维或薄膜的纤维素再生，和（iv）洗涤和干燥再生纤维素纤维或薄膜。

    Thickening water-in-oil dispersions, their preparation process and their use in textile printing
    59.
    发明授权
    Thickening water-in-oil dispersions, their preparation process and their use in textile printing 失效
    增稠油包水分散体，其制备过程及其在纺织印花中的应用

    公开(公告)号：US5484843A

    公开(公告)日：1996-01-16

    申请号：US314708

    申请日：1994-09-29

    Applicant: Paul Mallo ,  Isabelle Fietier ,  Ulrich Karsunky

    Inventor： Paul Mallo ,  Isabelle Fietier ,  Ulrich Karsunky

    IPC: D06P1/50 ,  D06P1/52 ,  C08K5/09 ,  C08L1/10

    CPC classification number: D06P1/50 ,  D06P1/5257

    Abstract: Self-reversible, stable, water-in-oil dispersions, miscible with water, constituted by an oil phase, an aqueous phase and at least two emulsifying agents of which at least one is of water-in-oil type, and at least one is of oil-in-water type, which contain 20 to 50% by weight of a mixture constituted by a hydrosoluble anionic polymer belonging to the group of carboxymethylcelluloses (C), and by a cross-linked, synthetic anionic polymer, insoluble in water but water-swellable (P), based on acrylic acid (AA), partially salified with an alkali metal (M), optionally copolymerized with 2-acrylamido 2-methyl propanesulphonate of the alkali metal M (AMPSM), cross-linked with a diethylenic carboxylic acid and in which the molar ratio of the salified acid functions to the total number of free or salified acid functions is comprised between about 0.6 and about 0.9, the ratio by weight C/P+C being comprised between 0.01 and 0.4, preparation process and use for obtaining a printing paste.

    Abstract translation: 由油相，水相和至少两种至少一种油包水型的至少两种乳化剂构成的与水可混溶的自可逆稳定的油包水分散体，以及至少一种 是水包油型，其含有20至50重量％的由属于羧甲基纤维素（C）组的水溶性阴离子聚合物构成的混合物和通过交联的合成阴离子聚合物，不溶于水 但基于丙烯酸（AA）的水溶胀性（P），用碱金属（M）部分盐化，任选地与碱金属M（AMPSM）的2-丙烯酰胺基2-甲基丙磺酸酯共聚，与 二硫化羧酸，其中盐化酸功能与游离或盐化酸功能总数的摩尔比在约0.6和约0.9之间，C / P + C的重量比在0.01和0.4之间，制剂 用于获得印刷浆料的方法和用途。

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