Tubular casing of cellulose hydrate with a fat and water repellent inner surface and process for the manufacture thereof
    1.
    发明授权
    Tubular casing of cellulose hydrate with a fat and water repellent inner surface and process for the manufacture thereof 失效
    纤维素水凝胶与脂肪和水的内表面的管状套管及其制造方法

    公开(公告)号:US3867182A

    公开(公告)日:1975-02-18

    申请号:US42096573

    申请日:1973-12-03

    Applicant: KALLE AG

    CPC classification number: C08G73/02 A22C13/0013 C08L61/20 C08L2666/14

    Abstract: This invention relates to a tubular casing of cellulose hydrate having a coating on its inner side composed of a mixture of substances cross-linked by chemical reaction, which mixture is obtained when an aqueous liquid containing A. 1 to 10 per cent by weight, calculated on the total weight of the liquid, of a water-soluble aminoplast precondensate, B. 1 to 4 per cent by weight, calculated on the total weight of the liquid of a fluorine-containing two-component system from Beta 1. POLYMERS OF FLUORINE-CONTAINING ETHYLENE IMINES OF THE GENERAL FORMULA

    WHEREIN Rf is a straight or branched, saturated perfluorinated carbon chain with 6 to 10 carbon atoms, and a 1 or 2, or polymers from mixtures of the said ethylene imines, dispersed in Beta 2. FLUORINE-CONTAINING COMPOUNDS OF THE GENERAL FORMULA

    WHEREIN R''f is a straight or branched, saturated perfluorinated carbon chain with 5 to 7 carbon atoms, b 1 or 2, and c 18 to 50 (corresponding to polyethylene glycol groups with an average molecular weight of about 800 to 2,000), or in mixtures of the above compounds, provided that, in the component B of the liquid, the ratio Beta 1 to Beta 2 is in the range from 40 : 60 to 60 : 40 per cent by weight, calculated on the total weight of the liquid, and C. a water-soluble cross-linking catalyst, is heated sufficiently to remove the portion of the liquid consisting of water and sufficiently to effect cross-linking, whereby the aminoplast precondensate and/or reaction products of the aminoplast precondensate and the constituents Beta 1 and Beta 2 of the component B are chemically bonded with the OH groups of the cellulose hydrate forming the tubular casing.

    Abstract translation: 本发明涉及一种纤维素水合物的管状壳体,其在其内侧具有由化学反应交联的物质的混合物组成的涂层,所述混合物在含有A.1-10重量%的含水液体时得到, 基于液体的总重量,水溶性氨基塑料预缩合物,B.1至4重量%,基于来自β1的含氟双组分体系的液体的总重量计算。氟化物聚合物 - 一般配方中的乙烯衍生物Rf是具有6至10个碳原子的直链或支链饱和全氟化碳链,a = 1或2,或分散在β2中的所述乙烯亚胺混合物的聚合物。氟 一般化学式的化合物R'f是具有5至7个碳原子的直链或支链饱和全氟化碳链,b = 1或2,c = 18至50(对应于具有平均值的聚乙二醇基团 约800至2,000的颗粒重量)或上述化合物的混合物,条件是在液体的组分B中,β1至β2​​的比例在40:60至60:40的范围内为 重量,基于液体的总重量计算,和C.一种水溶性交联催化剂,被充分加热以除去由水组成的液体的部分并充分进行交联,由此氨基塑料预缩合和/ 或氨基塑料预缩合物的反应产物和组分B的组分β1和β2与形成管状壳体的水合氧化铝的OH基化学键合。

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