Coating composition
    11.
    发明授权
    Coating composition 有权
    涂料组成

    公开(公告)号:US07887938B2

    公开(公告)日:2011-02-15

    申请号:US11930591

    申请日:2007-10-31

    摘要: A coating composition comprising an aqueous mixture containing acid-stable particles and one or more fluoroacids. The amount of the acid-stable particles in the coating composition is from 0.005% to 8% by weight on a dry weight basis. The acid-stable particles can be selected from aluminum-modified silica particles, nonaluminum-modified silica particles, and organic particles selected from anionically stabilized polymer dispersion particles. The invention is also directed to a coating on a metal substrate. The coating contains acid-stable particles attached to the metal substrate through a metal-oxide matrix. The metal-oxide matrix comprises a metal selected from titanium, zirconium, silicon, hafnium, boron, aluminum, germanium, or tin.

    摘要翻译: 一种涂料组合物,其包含含有酸稳定颗粒和一种或多种氟酸的含水混合物。 涂料组合物中酸稳定性颗粒的量为基于干重计0.005%-8%(重量)。 酸稳定颗粒可以选自铝改性二氧化硅颗粒,非铝改性二氧化硅颗粒和选自阴离子稳定的聚合物分散体颗粒的有机颗粒。 本发明还涉及金属基底上的涂层。 涂层含有通过金属氧化物基体附着到金属基底上的酸稳定颗粒。 金属氧化物基质包括选自钛,锆,硅,铪,硼,铝,锗或锡的金属。

    METHOD FOR SEPARATING MULTIVALENT METAL IONS
    12.
    发明申请
    METHOD FOR SEPARATING MULTIVALENT METAL IONS 审中-公开
    分离多金属离子的方法

    公开(公告)号:US20090236288A1

    公开(公告)日:2009-09-24

    申请号:US12356935

    申请日:2009-01-21

    IPC分类号: B01J49/02 B01D15/04

    CPC分类号: B01J49/60 B01J39/05 B01J49/06

    摘要: A method and apparatus are described for removing iron cations and/or zinc cations from an autodeposition coating bath by passing a limited number of bed volumes through a column containing a gel type SAC IEX resin when iron cations are to be removed and passing a substantially larger number of bed volumes through the column when zinc cations are to be removed. To prevent clogging when zinc cations are being removed the direction of the flow through the column is periodically reversed.

    摘要翻译: 描述了一种方法和装置,用于通过使有限数量的床体积通过含有凝胶型SAC IEX树脂的柱来除去铁阳离子和/或锌阳离子,当铁阳离子被去除并通过相当大的 当锌离子被除去时通过柱子的床体积数。 为了防止锌阳离子被去除时堵塞,流经柱的流动周期性地反转。

    Prevention of particle redeposition onto organic surfaces
    15.
    发明授权
    Prevention of particle redeposition onto organic surfaces 失效
    防止颗粒再沉积在有机表面上

    公开(公告)号:US06406748B2

    公开(公告)日:2002-06-18

    申请号:US09782411

    申请日:2001-02-13

    IPC分类号: B05D308

    CPC分类号: B05D3/08 B05D1/18 B05D3/12

    摘要: Method for preventing the formation of coating defects in polymeric coated surfaces in a coating process comprising a plurality of steps that occur prior to the polymeric coating of said surfaces and that contact organic and metal surfaces with a plurality of aqueous compositions in which accumulate in suspension resin particles released from said metal surfaces. Suspended resin particles are prevented from re-depositing on the organic surfaces by converting said surfaces to hydrophilic character by means of oxidizing said surfaces prior to contacting the oxidized surfaces with said suspensions.

    摘要翻译: 一种用于防止在涂覆方法中在聚合物涂覆表面形成涂层缺陷的方法,包括在所述表面的聚合物涂覆之前发生的多个步骤,并且与多个含水组合物接触有机和金属表面,其中积聚在悬浮树脂 从所述金属表面释放的颗粒。 通过在将氧化的表面与所述悬浮液接触之前,通过氧化所述表面将所述表面转化为亲水特性来防止悬浮的树脂颗粒在有机表面上再沉积。

    COMPOSITION FOR THE ALKALINE PASSIVATION OF ZINC SURFACES
    17.
    发明申请
    COMPOSITION FOR THE ALKALINE PASSIVATION OF ZINC SURFACES 有权
    ZINC表面碱性钝化的组成

    公开(公告)号:US20130202800A1

    公开(公告)日:2013-08-08

    申请号:US13566155

    申请日:2012-08-03

    IPC分类号: C09D5/08

    摘要: The present invention relates to an aqueous alkaline composition (A) for alkaline passivation of metallic components comprising at least in part surfaces of zinc or zinc alloys, containing iron(III) ions, phosphate ions, and one or more complexing agents, where a free alkalinity ranges from 1 to 6 points, and the pH is at least 11. The aqueous compositions (A) can additionally contain nonionic surfactants, so that such compositions are suitable for use in a method in which both cleaning and alkaline passivation of the metallic component occur in one step. The present invention further relates to a method for alkaline passivation of metallic components by contacting them with composition (A), and further a method for surface treatment in automobile body production, in which the alkaline passivation step using composition (A) is followed by an acid passivation step using a composition (B).

    摘要翻译: 本发明涉及用于金属组分的碱性钝化的碱性水溶液组合物(A),其包含至少部分含有铁(III)离子,磷酸根离子和一种或多种络合剂的锌或锌合金表面,其中, 碱度范围为1至6个点,pH值至少为11.水性组合物(A)可另外含有非离子表面活性剂,因此这些组合物适用于金属组分的清洁和碱性钝化两者的方法 发生在一个步骤。 本发明还涉及一种通过使其与组合物(A)接触来进行金属组分的碱钝化的方法,还涉及一种使用组合物(A)的碱性钝化步骤之后是一种用于汽车车身制造中的表面处理方法, 酸钝化步骤使用组合物(B)。

    MULTI-STAGE PRE-TREATMENT METHOD FOR METAL COMPONENTS HAVING ZINC AND IRON SURFACES
    18.
    发明申请
    MULTI-STAGE PRE-TREATMENT METHOD FOR METAL COMPONENTS HAVING ZINC AND IRON SURFACES 有权
    具有锌和铁表面的金属部件的多级预处理方法

    公开(公告)号:US20120325110A1

    公开(公告)日:2012-12-27

    申请号:US13484848

    申请日:2012-05-31

    IPC分类号: C09D5/08

    CPC分类号: C23C22/78 C23C22/34

    摘要: The invention relates to an acidic, aqueous, chromium-free composition (A) for the anti-corrosive treatment of steel and/or galvanized steel surfaces comprising metal ions (M) selected from ions at least of the elements nickel, cobalt, molybdenum, iron or tin and a multi-stage method applying the composition (A) for the anti-corrosive pre-treatment of metal components which have steel and/or galvanized steel surfaces. The invention further relates to metal surfaces of zinc or iron having a passive layer system comprising at least 30 mg/m2 nickel and at least 10 mg/m2 zircon, titanium and/or hafnium and sulfur, wherein nickel is present in metallic form at up to at least 30 At. %, obtainable in a method according to the invention.

    摘要翻译: 本发明涉及一种用于钢和/或镀锌钢表面的防腐蚀处理的酸性含水无铬组合物(A),其包括选自至少元素镍,钴,钼, 铁或锡以及将组合物(A)应用于具有钢和/或镀锌钢表面的金属组分的防腐蚀预处理的多阶段方法。 本发明还涉及锌或铁的金属表面,其具有包含至少30mg / m2镍和至少10mg / m2锆石,钛和/或铪和硫的钝化层系统,其中镍以金属形式存在 至少30 At。 %,可根据本发明的方法获得。

    Process for removing fine particulate soil from hard surfaces
    19.
    发明授权
    Process for removing fine particulate soil from hard surfaces 失效
    从硬表面除去细颗粒土的方法

    公开(公告)号:US07204890B2

    公开(公告)日:2007-04-17

    申请号:US10182480

    申请日:2001-01-19

    IPC分类号: B08B7/00

    摘要: Many prior art processes for cleaning predominantly organic hard surfaces have been found to be considerably less effective in removing very fine particles on such surfaces than are the best cleaners for metallic surfaces. However, it has been found, and forms the basis of this invention, that fine particles can be removed effectively from organic surfaces by an indirect process of first forming a thin solid coating over the surface and then removing the solid coating, into which the fine particles that formerly contaminated the surface to be cleaned have presumably become incorporated. Substantially hydrolyzed poly(vinyl acetate) has been found particularly useful for forming the thin solid coating when this coating is to be removed by treatment with an acidic aqueous solution; acrylate polymers are preferred if the solid coating is to be removed by an alkaline aqueous solution. In either instance, in order to obtain good wetting without damaging the surface to be cleaned, the material that forms the bulk of the solid coating is preferably applied to the surface to be cleaned in an aqueous solution or dispersion that also contains surfactant molecules that include imidazoline moieties. A method of quantifying the degree of removal of solid particles is also provided.

    摘要翻译: 已经发现用于清洁主要有机硬表面的许多现有技术方法在除去金属表面的最佳清洁剂之后,在除去这些表面上的非常细小的颗粒方面相当不太有效。 然而,已经发现并形成本发明的基础,可以通过间接方法从有机表面有效地除去细颗粒,所述间接方法首先在表面上形成薄的固体涂层,然后除去固体涂层,其中精细 以前被污染的待清洁表面的颗粒大概已被纳入。 已经发现基本上水解的聚(乙酸乙烯酯)在通过用酸性水溶液处理除去该涂层时可以形成薄的固体涂层; 丙烯酸酯聚合物是优选的,如果固体涂料要被碱性水溶液除去。 在任一情况下,为了获得良好的润湿性而不损坏要清洁的表面,形成固体涂层的主体的材料优选地应用于还含有表面活性剂分子的水溶液或分散体中的待清洁表面,所述表面活性剂分子包括 咪唑啉部分。 还提供了定量固体颗粒去除程度的方法。