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    • 42. 发明授权
    • Method for producing paper, paperboard and cardboard
    • 生产纸张,纸板和纸板的方法
    • US08486227B2
    • 2013-07-16
    • US13609356
    • 2012-09-11
    • Anton EsserRainer BlumJoachim KuhnMarc LeducRalf Hemel
    • Anton EsserRainer BlumJoachim KuhnMarc LeducRalf Hemel
    • D21H17/34D21H17/37D21H17/55D21H17/56D21H21/02D21H21/10
    • D21H21/02D21H17/37
    • A process for the production of paper, board and cardboard by draining a paper stock containing interfering substances in the presence of polymers which contain vinylamine units and which have an average molar mass Mw of at least 1 million, a high-consistency stock first being prepared, at least one polymer containing vinylamine units and having an average molar mass Mw of at least 1 million and a degree of hydrolysis of from 1 to 20 mol % being metered into the high-consistency stock, the high-consistency stock being diluted to a low-consistency stock by adding water, and the low-consistency stock being drained, the polymers being hydrolyzed homo- or copolymers of N-vinylcarboxamides additives for reducing deposits in the wire part, press section and drying section of paper machines.
    • 一种制备纸,纸板和纸板的方法,该方法是在含有乙烯胺单元的聚合物存在下含有干扰物质的纸料,并且其平均摩尔质量Mw至少为100万,首先制备高稠度原料 至少一种含有乙烯胺单元并且具有至少100万的平均摩尔质量Mw和1至20摩尔%的水解度的聚合物被计量加入高浓度原料中,将高稠度原料稀释至 低浓度原料通过加水,低浓度原料被排出,聚合物被水解为N-乙烯基甲酰胺添加剂的均聚物或共聚物,用于还原造纸机的丝线部分,压榨部分和干燥部分中的沉积物。