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    • 5. 发明申请
    • Aqueous silica-containing composition
    • 含水二氧化硅的组合物
    • US20030136534A1
    • 2003-07-24
    • US10326320
    • 2002-12-20
    • Hans Johansson-VestinJohan NyanderJan Nordin
    • D21H017/00D21H017/28D21H017/44D21H017/55D21H017/68C08L097/00C09D197/00
    • D21H21/10D21H17/23D21H17/29D21H17/375D21H17/455D21H17/57D21H17/68D21H17/74
    • The present invention relates to an aqueous silica-containing composition comprising an anionic organic polymer having at least one aromatic group and anionic aggregated or microgel formed silica-based particles. The aqueous silica-containing composition contains the anionic organic polymer having at least one aromatic group and the anionic silica-based particles in an amount of at least 0.01% by weight of the total weight of the aqueous silica-containing composition. The aqueous silica-containing composition contains substantially no cellulose-reactive sizing agent and the anionic organic polymer having at least one aromatic group is not an anionic naphthalene sulphonate formaldehyde condensate. The invention further relates to methods for the preparation of the aqueous silica-containing composition and the use of the aqueous silica-containing composition as a drainage and retention aid in a process for the production of paper. The invention also relates to a process for the production of paper from an aqueous silica-containing composition and at least one charged organic polymer are added to the cellulosic suspension.
    • 本发明涉及包含具有至少一个芳族基团的阴离子有机聚合物和阴离子聚集或微凝胶形成的二氧化硅基颗粒的含水二氧化硅的组合物。 含水二氧化硅的组合物含有至少一种芳族基团的阴离子有机聚合物和阴离子二氧化硅基颗粒,其量为含二氧化硅含水组合物总重量的至少0.01重量%。 含水二氧化硅的组合物基本上不含纤维素反应性施胶剂,并且具有至少一个芳族基团的阴离子有机聚合物不是阴离子萘磺酸盐甲醛缩合物。 本发明还涉及制备含水二氧化硅的组合物的方法以及含水二氧化硅的组合物作为生产纸的方法中的排水和助留剂的用途。 本发明还涉及从含水二氧化硅的组合物生产纸的方法,并且将至少一种带电有机聚合物加入到纤维素悬浮液中。