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    • 2. 发明授权
    • Process for preparing heat-curable, water-dilutable coating compositions
for coating metal substrates
    • 制备用于涂覆金属基材的可热固化的水可稀释涂料组合物的方法
    • US4442244A
    • 1984-04-10
    • US276702
    • 1981-06-23
    • Gerhard JohannesFali ShroffGerhard DullisDieter Steidl
    • Gerhard JohannesFali ShroffGerhard DullisDieter Steidl
    • C09D5/44C09D7/80C09D163/00C09D165/00C09D5/40
    • C09D5/4473C09D163/00C09D7/14Y10S524/901Y10S524/904
    • The invention relates to a process for preparing compositions for coating metal substrates or work pieces in an aqueous bath, in which the substrate forms the cathode.In this process 5-35% by weight of at least one epoxy resin, 2-20% by weight of at least one ketone and/or hydrocarbon resin, 15-60% by weight of at least one cationic synthetic resin having functional groups--this compound is a 10-50% by weight dispersion or solution--, 5-30% by weight of at least one organic cross-linking agent, which is solid at ambient temperature and 0-73% by weight of pigments and/or conventional adjuvants are processed together in one or more stages in a grinding apparatus to form a homogeneous coating composition. At least one stage being a wet operation. The composition has a particle size of less than 100 .mu.m, preferably less than 15 .mu.m. The grinding bath is adjusted with water to the solids content required for application. The particles obtained by the process are more homogeneous, with the result that, when applied to the object which is to be coated, a uniform layer thickness of the coating is obtained, which shows an increased impact strength.
    • 本发明涉及一种制备用于在基底形成阴极的水浴中涂覆金属基底或工件的组合物的方法。 在该方法中,5-35重量%的至少一种环氧树脂,2-20重量%的至少一种酮和/或烃树脂,15-60重量%的至少一种具有官能团的阳离子合成树脂 - 该化合物是10-50重量%的分散体或溶液,5-30重量%的至少一种有机交联剂,其在环境温度下为固体,0-73重量%的颜料和/或常规 佐剂在研磨装置中一个或多个阶段一起加工以形成均匀的涂料组合物。 至少有一个阶段是湿法操作。 该组合物的粒度小于100μm,优选小于15μm。 将研磨浴用水调节至施用所需的固体含量。 通过该方法获得的颗粒更均匀,结果当施加到待涂覆的物体上时,获得均匀的涂层厚度,这表现出增加的冲击强度。
    • 5. 发明授权
    • Fine-grained polyether-ketone powder, process for the manufacture
thereof, and the use thereof
    • 细颗粒聚醚酮粉末,其制造方法及其用途
    • US5247052A
    • 1993-09-21
    • US891779
    • 1992-06-01
    • Andreas LuckeDieter Steidl
    • Andreas LuckeDieter Steidl
    • B29B9/00B29B9/12B29B13/10
    • B29B13/10B29B9/00B29B9/12B29K2071/00
    • A fine-grained polyether-ketone powder, having a particle size with a d.sub.50 value smaller than or equal to 40 .mu.m and a grain size distribution range smaller than or equal to 55 .mu.m, is obtained by cold-grinding of coarse-grained polyether-ketone in a fluid-bed opposed-jets mill, which is provided with a grinding chamber (2) subjected to gas jets, a grinding material-charging device, a screening device (5) for separating coarse material (11) and fine material (10), and a bottom (3) underneath the grinding chamber for added material to be ground and coarse material flowing back from the screening device, the material to be ground and the coarse material flowing back from the screening device being cooled by means of a cryogenic refrigerant.The powders obtained in this way are used for producing surface coatings or composites.
    • 通过将粗粒度的小粒度粒径分布为小于等于40μm的粒径和小于等于55μm的粒度分布范围的细粒度聚醚酮粉末, 聚醚酮在流体床相对喷射式粉碎机中设置有经受气体喷射的研磨室(2),研磨材料充填装置,用于分离粗料(11)的筛分装置(5) 材料(10)和底部(3),用于待研磨的添加材料和从筛分装置回流的粗材料,待研磨的材料和从筛分装置流回的粗材料被装置冷却 的低温制冷剂。 以这种方式获得的粉末用于生产表面涂层或复合材料。