STABILE WAESSRIGE EPOXIDHARZDISPERSION, VERFAHREN ZU DEREN HERSTELLUNG UND DEREN VERWENDUNG
Low-solvent, stable, aqueous dispersion of (a) 35 to 65% by weight of epoxide resin having a mean epoxide equivalent weight of about 250 to about 5,000 and (b) a non-ionic dispersant in the form of a polyalkylene glycol derivative, which contains as component (b) 2 to 20% by weight of dispersant com...
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Zusammenfassung: | Low-solvent, stable, aqueous dispersion of (a) 35 to 65% by weight of epoxide resin having a mean epoxide equivalent weight of about 250 to about 5,000 and (b) a non-ionic dispersant in the form of a polyalkylene glycol derivative, which contains as component (b) 2 to 20% by weight of dispersant comprising condensation products of polyalkylene glycols having molecular weights of 200 to 20,000 and polyglycidyl ethers of polyhydric phenols having an epoxide equivalent weight of 100 to 2,000 in an equivalent ratio of OH to epoxide groups of 1:(0.85 to 1.5), (c) 0.2 to 20% by weight of organic solvent having a boiling point below 160 DEG C. and (d) 35 to 60% by weight of water, where the proportions always total 100% by weight, the particle size is on average less than 1 mu m and the total solids content of the dispersion is 10 to 80% by weight, and a process for its preparation, and its use for preparing shaped articles, in particular surface coatings. |
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