Paper laminates
    2.
    发明申请
    Paper laminates 有权
    纸层压板

    公开(公告)号:US20070071989A1

    公开(公告)日:2007-03-29

    申请号:US11236366

    申请日:2005-09-27

    Applicant: Erik Thiele

    Inventor: Erik Thiele

    Abstract: The present disclosure relates to a process for making a decorative base paper for a paper laminate comprising impregnating a base paper with a pigment mixture of titanium dioxide and water wherein the titanium dioxide pigment is made by treating a mixture of titanium dioxide pigment and water with a source of phosphorus and a source of aluminum; drying the treated mixture to form a treated pigment, the treated pigment having surface hydroxyl groups; and removing a major proportion of the surface hydroxyl groups of the treated pigment. Preferably the surface hydroxyl groups are removed by thermal treatment, for example at temperatures ranging from 300° C. to 800° C. The source of phosphorus is typically phosphoric acid and the source of aluminum is typically sodium aluminate. The pigment can be characterized by an isoelectric point which is greater than pH 6 and a negative zeta potential of at least 20 mV at a pH of 7.5 or more and wherein the pigment has improved light fastness.

    Abstract translation: 本发明涉及一种用于制造用于纸叠层的装饰性原纸的方法,包括用二氧化钛和水的颜料混合物浸渍原纸,其中二氧化钛颜料通过用二氧化钛颜料和水的混合物处理而制成 磷源和铝源; 干燥经处理的混合物以形成经处理的颜料,处理过的颜料具有表面羟基; 并除去处理过的颜料的表面羟基的主要部分。 优选地,通过热处理,例如在300℃至800℃的温度范围内去除表面羟基。磷源通常是磷酸,铝源通常是铝酸钠。 颜料的特征可以在pH为7.5以上,等电点高于pH6,负ζ电位至少为20mV,其中颜料具有改善的耐光性。

    Titanium dioxide pigment useful in paper laminates
    4.
    发明申请
    Titanium dioxide pigment useful in paper laminates 审中-公开
    用于纸层压板的二氧化钛颜料

    公开(公告)号:US20070068423A1

    公开(公告)日:2007-03-29

    申请号:US11236158

    申请日:2005-09-27

    Applicant: Erik Thiele

    Inventor: Erik Thiele

    CPC classification number: C09C1/3661 C01P2006/60

    Abstract: The present disclosure relates to a process for making a titanium dioxide pigment comprising a thermally treated titanium dioxide having an inorganic surface treatment of comprising a source of phosphorus, typically phosphoric acid, and a source of aluminum, typically sodium aluminate, wherein the pigment is characterized by an isoelectric point which is greater than pH 6 and a negative zeta potential of at least 20 mV at a pH of 7.5 or more and wherein the pigment has improved light fastness.

    Abstract translation: 本公开涉及一种制备二氧化钛颜料的方法,所述二氧化钛颜料包含具有无机表面处理的热处理二氧化钛,所述二氧化钛具有磷源(通常为磷酸)和铝源(通常为铝酸钠),其中所述颜料的特征在于 通过等于pH6的等电点和pH为7.5以上的至少20mV的负ζ电位,并且其中所述颜料具有改善的耐光性。

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