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公开(公告)号:US3879335A
公开(公告)日:1975-04-22
申请号:US28026272
申请日:1972-08-14
Applicant: BASF AG
Inventor: STORCK GERHARD , DIEFENBACH HORST , MARX MATTHIAS , NAGEL OTTO , KUERTEN HERIBERT , WEINLE WERNER
CPC classification number: C09D5/03 , C09B63/00 , C09B67/0003 , C09B67/0095
Abstract: Production of pigmented resin powders by finely dispersing dispersions of pigments in solutions of polymeric materials in at least one organic solvent in water containing a protective colloid while supplying mixing energy, and removing the solvent. A preferred method is to introduce one or more jets of water containing protective colloid at the rate of 5 to 100 m/sec into animpulse exchange chamber together with the dispersion issuing in the immediate vicinity of the orifice(s), and to remove the solvent. The method avoids crosslinking and provides pigmented resin powders of consistently reproducible color which are suitable for conventional powdered-resin coating methods.
Abstract translation: 通过将颜料的分散体在含有保护胶体的水中的至少一种有机溶剂中精细分散在聚合物材料的溶液中同时提供混合能量并除去溶剂来生产着色树脂粉末。 一种优选的方法是将一种或多种含有保护胶体的水,以5-100m / sec的速率引入到脉冲交换室中,同时在紧邻孔口处发出分散体,并除去溶剂 。 该方法避免交联,并提供适合于常规粉末 - 树脂涂覆方法的颜色一致的可再现颜色的着色树脂粉末。