Process for the production of multicoat protective and/or decorative
coatings on substrate surfaces
    2.
    发明授权
    Process for the production of multicoat protective and/or decorative coatings on substrate surfaces 失效
    在基材表面上生产多层保护和/或装饰涂层的方法

    公开(公告)号:US5512322A

    公开(公告)日:1996-04-30

    申请号:US334476

    申请日:1994-11-04

    摘要: The invention relates to a basecoat/clearcoat process in which the basecoat composition used contains as a film former a polyurethane resin which can be prepared by preparing an intermediate from(A) a mixture obtained from 10 to 90 mol % of linear polyether diols and 90 to 10 mol % of polyester diols,(B) diisocyanates,(C) compounds which contain two groups reactive toward isocyanate groups, at least some of these compounds having at least one group capable of forming anions,and the free isocyanate groups of the said intermediate are then reacted with(D) polyols containing at least three hydroxyl groups, and the reaction product obtained in this manner is transferred into an aqueous base, whereina) the polyester diol is prepared from diols and an acid component which consists of 60 to 100% by weight of aliphatic dicarboxylic acids of more than 18 carbon atoms and of 40 to 0% by weight of aliphatic dicarboxylic acids of 2 to 18 carbon atoms,b) the equivalent ratio of the NCO groups to the total of the OH groups of (A) and the reactive groups of (C) is 2:1 to 1.05:1 andc) the equivalent of the OH groups of the component (D) to the NCO groups of the intermediate is 0.5:1 to 4:1.

    摘要翻译: 本发明涉及一种底漆/透明涂料方法,其中所用的底漆组合物包含作为成膜剂的聚氨酯树脂,其可以通过从(A)得到的线性聚醚二醇和10至90摩尔的直链聚醚二醇的混合物制备中间体 至10mol%的聚酯二醇,(B)二异氰酸酯,(C)含有两个对异氰酸酯基反应的基团的化合物,至少一些具有至少一个能够形成阴离子基团的化合物,以及所述 然后使中间体与(D)含有至少三个羟基的多元醇反应,将以这种方式获得的反应产物转移到碱的水溶液中,其中a)聚酯二醇由二醇和酸组分制备,其由60至 碳原子数为18以上的脂肪族二羧酸100重量%,碳原子数2〜18的脂肪族二羧酸40〜0重量%,b)NCO基的当量比 (A)的OH基团和(C)的反应性基团的总数为2:1至1.05:1,和c)组分(D)的OH基相当于中间体的NCO基团的当量 为0.5:1至4:1。

    Process for removing from electrocoating baths impurities which cause
surface defects
    3.
    发明授权
    Process for removing from electrocoating baths impurities which cause surface defects 失效
    从电泳浴中除去引起表面缺陷的杂质的方法

    公开(公告)号:US4956096A

    公开(公告)日:1990-09-11

    申请号:US384915

    申请日:1989-07-25

    IPC分类号: B01J20/28 C25D13/24

    CPC分类号: C25D13/24

    摘要: A process for removing from electrocoating baths impurities which cause surface defects.The invention relates to a process for removing from electrocoating baths impurities which cause surface defects, wherein the electrocoating paint, in addition to the purification operations which are already conventional, is filtered without pressure through an adsorbent which adsorbs hydrophobic substances having a surface tension.ltoreq.35 mN/m--preferably homopolymers or copolymers of ethylene, propylene, but-1-ene or but-2-ene, which, if appropriate, contain further nonpolar comonomers.

    摘要翻译: 从电泳浴中除去引起表面缺陷的杂质的方法。 本发明涉及一种从电泳浴中除去引起表面缺陷的杂质的方法,其中除了已经是常规的纯化操作之外,电涂料通过吸附具有表面张力的疏水性物质的吸附剂被无压力地过滤, = 35mN / m-优选乙烯,丙烯,丁-1-烯或丁-2-烯的均聚物或共聚物,如果合适,其还含有其它非极性共聚单体。

    Products of diepoxide polyaddition with monofunctional initiators, which
contain pendant epoxy groups in the backbone of the polymer
    4.
    发明授权
    Products of diepoxide polyaddition with monofunctional initiators, which contain pendant epoxy groups in the backbone of the polymer 失效
    二环氧化物加聚物与单官能引发剂的产物,其在聚合物主链中含有侧环氧基

    公开(公告)号:US4824927A

    公开(公告)日:1989-04-25

    申请号:US009336

    申请日:1987-01-23

    摘要: The invention relates to water-dilutable binders for cationic electrocoating finishes. For the preparation of the binders, a di-epoxide compound, together with at least one mono-epoxide compound if desired, is converted by a polyaddition, carried out at 100.degree. to 195.degree. C. and initiated by a monofunctionally reacting initiator carrying either an alcoholic OH group, a phenolic OH group or an SH group, to form an epoxy resin which then subsequently is modified with(A) primary and/or secondary amines or their salts and/or the salt of a tertiary amine, a sulfide/acid mixture or a phosphine/acid mixture and with, if desired,(B) a polyfunctional alcohol, a polycarboxylic acid, a polysulfide or a polyphenol.

    摘要翻译: PCT No.PCT / EP86 / 00302 Sec。 371日期1987年1月23日 102(e)日期1987年1月23日PCT提交1986年5月17日PCT公布。 出版物WO86 / 07082 日期为1986年12月4日。本发明涉及阳离子电泳涂饰用水可稀释粘合剂。 对于粘合剂的制备,如果需要,二环氧化合物与至少一种单环氧化物化合物通过加聚转化,在100℃至195℃下进行,并通过单功能反应引发剂引发, 醇类OH基团,酚OH基团或SH基团,形成环氧树脂,然后随后用(A)伯胺和/或仲胺或其盐和/或叔胺盐,硫化物/ (B)多官能醇,多元羧酸,多硫化物或多酚。