Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1989-03-20
1990-06-12
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
55 85, 210725, 210728, 210733, C02F 156
Patent
active
049330918
ABSTRACT:
Removal of wet overspray from lacquer or similar water insoluble coatings by predominantly aqueous cleaning liquids is improved by including in the cleaning liquids as a coagulation agent a salt of a copolymer of ethylene and acrylic acid that contains 8 to 25% by weight of acrylic acid units and 92 to 75% by weight of ethylene units in its acid form. The cleaning liquid may be conveniently made by diluting an aqueous concentrate containing 2 to 25% by weight of the copolymer salt. Including cyanamide derivatives such as calcium cyanamide in the cleaning liquid further improves its coagulating effectiveness.
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Chem. Abst. 104:131538v Hydrophobic Polymer Ampholyte for Laquer Coagulation, Ger. Offen DE 3,416,119.
Geke Juergen
Margeit Ragnar
Henkel Kommanditgesellschaft auf Aktien
Hruskoci Peter
Jaeschke Wayne C.
Szoke Ernest G.
Wisdom, Jr. Norvell E.
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