发明授权
US5015676A Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects 失效
用于提高粉末涂料或粉末的静电充电性的方法及其用于表面涂覆固体物体的用途

Process for enhancing the electrostatic chargeability of powder coatings
or powders, and the use thereof for surface-coating solid objects
摘要:
A process for enhancing the electrostatic chargeability of powder coatings or powders intended for surface-coating solid objects, by homogeneously incorporating at least one salt-like, cationic compound of the formulae (1) and/or (2) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, are hydrogen atoms, straight-chain or branched alkyl groups having 1 to 30 carbon atoms, oxethyl groups of the formula --(CH.sub.2 --CH.sub.2 --O).sub.n --R in which R is a hydrogen atom or a (C.sub.1 -C.sub.4)alkyl or acyl group, and n is a number from 1 to 10, mononuclear or polynuclear cycloaliphatic radicals having 5 to 12 carbon atoms, mononuclear or polynuclear aromatic radicals or araliphatic radicals, R.sub.5 denotes a hydrogen, fluorine, chlorine or bromine atom or a (C.sub.1 -C.sub.6)alkoxy or primary amino group, and where R.sub.1 and R.sub.3 may be part of a ring system having 5 to 7 atoms and 0 to 3 double bonds, and A.sup.- denotes the equivalent of an anion, in an amount from about 0.01 to about 10 percent by weight into powder coatings or powders, where the salt-like cationic compounds of the general formulae (1) and (2) are dissolved or dispersed in the powder coating or powder.
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