中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

115 records (took 0.03 seconds)

    22.
    发明专利
    未知

    公开(公告)号：DE59600457D1

    公开(公告)日：1998-09-24

    申请号：DE59600457

    申请日：1996-02-07

    Applicant: BASF AG

    Inventor： ETTL ROLAND ,  LORENCAK PRIMOZ ,  SCHERR GUENTER ,  REUTHER WOLFGANG ,  GLAS GUENTHER

    IPC: D21H17/34 ,  C08G73/04 ,  C09K23/52 ,  D21H17/03 ,  D21H17/17 ,  D21H17/56 ,  D21H21/16 ,  D21H17/72

    Abstract: PCT No. PCT/EP96/00500 Sec. 371 Date Aug. 19, 1997 Sec. 102(e) Date Aug. 19, 1997 PCT Filed Feb. 7, 1996 PCT Pub. No. WO96/26318 PCT Pub. Date Aug. 29, 1997Aqueous alkyldiketene dispersions which contain a C14-C22-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-vinylimidazole as 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 DEG 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 group to give crosslinked, amidated polyethyleneimines which have a viscosity of at least 100 mPa.s in 20% strength by weight aqueous solution at 20 DEG 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.

    AQUEOUS ALKYL DIKETENE DISPERSIONS AND THE USE THEREOF AS GLUE FOR PAPER
    24.
    发明专利
    AQUEOUS ALKYL DIKETENE DISPERSIONS AND THE USE THEREOF AS GLUE FOR PAPER 未知

    公开(公告)号：CA2213314A1

    公开(公告)日：1996-08-29

    申请号：CA2213314

    申请日：1996-02-07

    Applicant: BASF AG

    Inventor： GLAS GUENTHER ,  ETTL ROLAND ,  LORENCAK PRIMOZ ,  SCHERR GUENTER ,  REUTHER WOLFGANG

    IPC: D21H17/34 ,  C08G73/04 ,  C09K23/52 ,  D21H17/03 ,  D21H17/17 ,  D21H17/56 ,  D21H21/16 ,  C08K5/15 ,  C08L79/02 ,  C08J3/03 ,  C08L39/04

    Abstract: The invention concerns aqueous alkyl diketene dispersions containing a C14-C22 alkyl diketene and 1-10 wt.% polymer-type protective colloid, and characterised by the fact that they contain as a protective colloid (a) copolymers of (1) N-vinylpyrrolidone and (2) at least one quaternised N-vinyl imidazole or a substituted quaternised N-vinyl imidazole, in a molar ratio of 80:20 - 5:95 and integrated by polymerisation, and have a K value of at least 20 (using the method of H. Fikentscher in 0.5 m aqueous cooking salt solution at a polymer concentration of 0.1 wt.% and a temperature of 25 ~C); (b) condensation products obtained by (1) partial amidation of polyethylene imines with monocarboxylic acids and, optionally, (2) condensation of the partially amidated polyethylene imines with at least bifunctional cross-linking agents containing as a functional group a halo-hydrine, glycidyl, aziridine or isocyanate unit or halogen atom to produce cross-linked amidated polyethylene imines with a viscosity of at least 100 mPas in a 20 wt.% aqueous solution at 20 ~C; or mixtures of (a) and (b). The invention also concerns the use of aqueous alkyl diketene dispersions as glue in the production of paper, pulp and cardboard and for the water-repellant finishing of cellulose fibres.

    27.
    发明专利
    未知

    公开(公告)号：DE102005023608A1

    公开(公告)日：2006-11-23

    申请号：DE102005023608

    申请日：2005-05-18

    Applicant: BASF AG

    Inventor： CHAMP SIMON ,  ETTL ROLAND ,  CHAMP SAMANTHA

    IPC: D21H23/16 ,  D21H21/22

    Abstract: A process for the production of paper, board and cardboard in the presence of a water-swellable polymer by adding the water-swellable polymer to a fiber suspension, the fiber suspension comprising water-swellable polymers being beaten.

Patent Agency Ranking