Process for removing from electrocoating baths impurities which

Details Process for removing from electrocoating baths impurities which Process for removing from electrocoating baths impurities which

1989-07-25

1990-09-11

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

B01D 1500

Patent

active

049560964

ABSTRACT:
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.

REFERENCES:
patent: 4336138 (1982-06-01), Taniyama et al.

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