利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

85 条记录 (耗时 0.014 秒)

    CELLULOSIC PARTICLES AND METHODS OF MAKING THEM
    8.
    发明公开
    CELLULOSIC PARTICLES AND METHODS OF MAKING THEM 有权
    纤维素颗粒和方法生产同样

    公开(公告)号：EP1047813A1

    公开(公告)日：2000-11-02

    申请号：EP99900541.6

    申请日：1999-01-14

    申请人： Acordis Kelheim GmbH

    发明人： COWEN, Philip Edward ,  KINSEHER, Richard

    IPC分类号： D01F2/06 ,  D01F2/10 ,  D01D5/40

    CPC分类号： D01F2/06 ,  D01D5/40 ,  D01F2/10

    摘要： Cationic cellulose particles useful in papermaking comprise from grater than 10 up to 50 percent by weight on cellulose of a polymeric amine of weight-average molecular weight in the range from 100,000 to 1,000,000 comprising monomeric units having the formula: -XCR3((CH2)nNR1R2)(CH2)m- where X is selected from the group consisting of a chemical bond, O and NR?4; R1 and R2¿ are the same or different and are selected from the group consisting of H, C¿1?-C4 alkyl, phenyl and phenyl substitued with one, two or three substituents selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy, F, Cl and Br; R?3 and R4¿ are independently selected from the group consisting of H, methyl and ethyl; m is an integer in the range from 1 to 4, and n is an integer in the range from 0 to 4.

    HILFSMITTEL FÜR DIE HERSTELLUNG VON CELLULOSEFASERN
    9.
    发明公开
    HILFSMITTEL FÜR DIE HERSTELLUNG VON CELLULOSEFASERN 有权
    工具纤维素纤维的生产

    公开(公告)号：EP1040214A1

    公开(公告)日：2000-10-04

    申请号：EP98963528.9

    申请日：1998-11-28

    申请人： Cognis Deutschland GmbH

    发明人： LAGARDEN, Martin ,  MATHIS, Raymond ,  KOLKEN, Ursula

    IPC分类号： D01F2/10

    CPC分类号： D01F2/06 ,  D01F2/10

    摘要： The invention relates to a method for producing cellulose fibers according to the viscose method, whereby reaction products of the nucleophilic ring opening of epoxides are added as modifiers. Said epoxides are comprised of formula (I) in which R1 represents a linear or branched aliphatic alkyl radical having 1 to 22 C-atoms with compounds of formula (II) in which R?2 and R3¿, independent of one another, represent a radical (C¿n?H2n-O)m-H or a linear or branched saturated or unsaturated alkyl radical having 1 to 22 C-atoms or hydrogen, n represents the value 2 or 3 and m represents a value between 1 and 20.

    USE OF AN AMPHOTERIC SURFACTANT AS A VISCOSE SPIN BATH ADDITIVE
    10.
    发明公开
    USE OF AN AMPHOTERIC SURFACTANT AS A VISCOSE SPIN BATH ADDITIVE 失效
    两性表面活性剂的应用作为一种纺丝浴粘胶的添加剂

    公开(公告)号：EP0996777A1

    公开(公告)日：2000-05-03

    申请号：EP98920809.5

    申请日：1998-04-30

    申请人： AKZO NOBEL N.V.

    发明人： BJUR, Kent ,  CASSEL, Anders ,  STRANDBERG, Margreth ,  UNEBACK, Ingemar

    IPC分类号： D01F2/10

    CPC分类号： D01F2/06 ,  D01F2/10

    摘要： The present invention relates to a method of reducing the clogging of nozzles and slits and diminishing the formation of deposits in the spin bath system in the process of making viscose filamentary and film materials by using an amphoteric surfactant having the formula (I): RNA(CnH2nNA)x-1A where R represents a hydrogen or an alifatic group with 1-24 carbon atoms, each A represents a hydrogen, an alifatic group with 1-24 carbon atoms, or BOOCCmH2m-groups, where m is a number from 1-3, B is hydrogen or a salt forming cation, n is a number from 2-3, x is 1-8, and the number of BOOCCmH2m- groups are from 1 to x+2, with the provision that the total number of carbon atoms in the aliphatic groups is from 8 to 45. The amphoteric surfactant has an excellent anticlogging effect, since it is a good dispersant and prevents or reduces precipitation in the spin bath. In addition, it has a low foaming and is very stable.