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229 records (took 0.034 seconds)

    41.
    发明专利
    未知

    公开(公告)号：DE102004052957A1

    公开(公告)日：2006-05-04

    申请号：DE102004052957

    申请日：2004-10-29

    Applicant: BASF AG

    Inventor： ESSER ANTON ,  LINHART FRIEDRICH

    IPC: B31F1/12

    Abstract: A process for the production of crepe paper by adhesive bonding of a paper web with the aid of an organic synthetic polymer or mixtures comprising said polymer to a creping cylinder, compression and removal of the crepe paper from the creping cylinder, the organic synthetic polymer used being at least one polymer comprising vinylamine units.

    42.
    发明专利
    未知

    公开(公告)号：DE102004025861A1

    公开(公告)日：2005-12-22

    申请号：DE102004025861

    申请日：2004-05-24

    Applicant: BASF AG

    Inventor： LINHART FRIEDRICH ,  ESSER ANTON ,  KANNENGIESER DETLEF

    IPC: D21H21/14 ,  B31F1/12 ,  D21H25/00 ,  D21F11/00

    Abstract: The process for the production of crepe paper by adhesive bonding of a paper web with the aid of an adhesive comprising (i) polyethyleneimine having a molar mass Mw of from 50 000 to 2 million, (ii) reaction products of polyethyleneimine having a molar mass Mw of from 500 to 1 million with at least one C14- to C22-alkyldiketene, a monocarboxylic acid, an ester of a monocarboxylic acid or an acid chloride of a monocarboxylic acid and/or (iii) reaction products of polyalkylenepolyamines having a molar mass of from 300 to 1 million with at least one bischlorohydrogen ether or bisglycidyl ether of a polyalkylene glycol having a molecular weight MN of from 300 to 3000 to a creping cylinder, compression and removal of the crepe paper, as well as the use of the adhesives (i) to (iii) as creping assistants.

    44.
    发明专利
    未知

    公开(公告)号：ES2200943T3

    公开(公告)日：2004-03-16

    申请号：ES00965878

    申请日：2000-08-16

    Applicant: BASF AG

    Inventor： LINHART FRIEDRICH ,  DIRKS BERND ,  TRESCH RAINER ,  MOHR BERNHARD ,  FEHRINGER DIETRICH

    IPC: C08G69/10 ,  C08G18/60 ,  C08G59/40 ,  C08G69/48 ,  D21H17/21 ,  D21H17/22 ,  D21H17/54 ,  D21H21/10 ,  D21H21/18 ,  D21H21/22

    Abstract: Paper, board and cardboard are produced by a process in which a paper stock is drained in the presence of condensates of basic amino acids with sheet formation. In particular, homo- and cocondensates of lysine and the crosslinked condensates obtainable therefrom by reaction with crosslinking agents are used in amounts of from 0.01 to 5% by weight, based on dry paper stock, as a means of increasing the dry and wet strength and the absorptivity of paper, for fixing anionic dyes and interfering substances in the paper, for increasing the drainage rate and the retention as well as the efficiency of synthetic anionic and cationic retention aids in the production of paper, board and cardboard by draining a paper stock with sheet formation.

    45.
    发明专利
    未知

    公开(公告)号：ES2181220T3

    公开(公告)日：2003-02-16

    申请号：ES98922636

    申请日：1998-04-02

    Applicant: BASF AG

    Inventor： LINHART FRIEDRICH ,  MELZER JAROSLAV ,  MEIXNER HUBERT

    IPC: D21H17/56 ,  D21H21/02

    Abstract: Paper, board and cardboard are produced from paper stocks which contain tacky impurities by the addition of surfactants and cationic polymers having a charge density of at least 1.5 meq/g (measured at pH 7) and a molar mass Mw of the cationic polymers of at least 15,000 and drainage of the paper stocks with fixation of the tacky impurities in the paper produced.

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