Process for enhancing the electrostatic chargeability of powder

Details Process for enhancing the electrostatic chargeability of powder Process for enhancing the electrostatic chargeability of powder

1988-11-03

1991-05-14

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523455, 523456, 523461, 524104, 524157, 524159, 524236, 524238, 524239, 524240, 524243, 524244, 524245, 524246, 524247, C08K 53432, C08K 53415, C08K 529, C08K 519

Patent

active

050156764

ABSTRACT:
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.

REFERENCES:
patent: 3845016 (1974-10-01), Labana et al.
patent: 3880947 (1975-04-01), Labana et al.
F. Haselmeyer et al., Defazet, 27 529 (1973) ("Additive fuer EPS-Pulver").

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