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    • 2. 发明授权
    • Aqueous alkyldiketene dispersions and their use as size for paper
    • 水性烷基染料分散体及其作为纸张尺寸的用途
    • US5942588A
    • 1999-08-24
    • US894365
    • 1997-08-19
    • Roland EttlPrimoz LorencakGunter ScherrWolfgang ReutherGunther Glas
    • Roland EttlPrimoz LorencakGunter ScherrWolfgang ReutherGunther Glas
    • D21H17/34B01F17/52C08G73/04D21H17/03D21H17/17D21H17/56D21H21/16C08G73/00C08F22/00C08F116/00
    • D21H21/16D21H17/17
    • Aqueous alkyldiketene dispersions which contain a C.sub.14 -C.sub.22 -alkyldiketene and from 1 to 10% by weight of a polymeric protective colloid contain, as the protective colloid(a) copolymers of(1) N-vinylpyrrolidone and(2) at least one quaternized N-vinylimidazole or a substituted quaternized N-vinylimidazoleas polymerized units in a molar ratio of from 80:20 to 5:95 and have a K value of at least 20 (according to H. Fikentscher in 0.5 M aqueous sodium chloride solution at a polymer concentration of 0.1% by weight and at 25.degree. C.) or(b) condensates which are obtainable by(1) partial amidation of polyethyleneimines with monocarboxylic acids and, if required(2) condensation of the partially amidated polyethyleneimines with at least bifunctional crosslinking agents which have a halohydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as a functional groupto give crosslinked, amidated polyethyleneimines which have a viscosity of at least 100 mPa.s in 20% strength by weight aqueous solution at 20.degree. C.,or mixtures of (a) and (b) and are used as engine size in the production of paper, board and cardboard and for rendering cellulosic fibers water-repellent.
    • PCT No.PCT / EP96 / 00500 Sec。 371日期1997年8月19日 102(e)日期1997年8月19日PCT提交1996年2月7日PCT公布。 公开号WO96 / 26318 PCT 日期:1997年8月29日含有C14-C22-烷基染料和1〜10重量%的聚合物保护胶体的水性烷基异丁烯酮分散液含有(1)N-乙烯基吡咯烷酮和(2)的共聚物的保护胶体(a) 至少一种季铵化的N-乙烯基咪唑或取代的季铵化N-乙烯基咪唑作为摩尔比为80:20至5:95的聚合单元,K值至少为20(根据H.Fikentscher在0.5M的钠水溶液 氯化物溶液,聚合物浓度为0.1重量%,在25℃)或(b)缩合物,其可通过以下方式获得:(1)聚乙烯亚胺与单羧酸的部分酰胺化,如果需要(2)部分酰胺化的聚乙烯亚胺 至少具有卤代醇,缩水甘油基,氮丙啶或异氰酸酯单元或卤素原子作为官能团的双官能交联剂,得到交联的酰胺化聚乙烯亚胺,其在20%链中具有至少100mPa.s的粘度 20重量%的水溶液或(a)和(b)的混合物,并用作纸,纸板和纸板的生产中的发动机尺寸,并用于使纤维素纤维疏水。