C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 163/00 (2006.01) C08F 283/10 (2006.01) C08G 59/06 (2006.01) C08L 71/02 (2006.01)
Patent
CA 2125254
Abstract of the Disclosure Aqueous epoxy resin dispersion comprising (A) an epoxy resin which is a condensation product of (A-1) from 50 to 95% by weight, preferably from 55 to 85% by weight, of one or more epoxide compounds having at least two epoxide groups per molecule and an epoxide equivalent mass of from 100 to 2000 g/mol, (A-2) from 5 to 50% by weight, preferably from 15 to 45% by weight, of an aromatic polyol; and (A-3) from 0 to 25% by weight, preferably from 0 to 10% by weight, of modifying compounds containing at least two epoxide-reactive groups; (B) a dispersant comprising (B-1) a condensation product of a polyol having a weight-average molecular mass (Mw) of from 200 to 20,000 g/mol and an epoxide compound having on average at least two epoxide groups per molecule and an epoxide equivalent mass of from 100 to 10,000 g/mol, and (B-2) if desired other surfactants, preferably nonionic surfactants; (C) a polymer, prepared in this dispersion, of ethylenically unsaturated monomers which are capable of free-radical polymerization or copolymerization; (D) a curing agent for the epoxy resin (A); and (E) if desired, conventional additives and catalysts. These aqueous epoxy resin dispersions are suitable for the production of coatings, in particular for interior coatings of cans for beverages and preserves.
Dreischhoff Dieter
Hoenel Michael
Oberressl Paul
Petri Stefan
Pfeil Armin
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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