C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5123
C08L 75/00 (2006.01) C08F 299/02 (2006.01) C08L 33/14 (2006.01) C08L 63/00 (2006.01) C09D 5/44 (2006.01)
Patent
CA 1085079
ABSTRACT OF THE DISCLOSURE Heat curable, cathodically depositable, aqueous coating com- positions comprising an aqueous emulsion of 98 to 50 percent by weight, preferably 95 to 70 percent by weight, of one or more self-crosslinking cationic binders based on modified epoxy compounds, water-soluble upon partial or total neutralization with an inorganic or organic acid, and 2 to 50 percent by weight, preferably 5 to 30 percent by weight, of a di- and/or triurethane having the formula - Image wherein R represents an aromatic, cycloaliphatic, or aliphatic hydrocarbon radical; R1 stands for a hydroxyethyl(meth)acrylate or a hydroxypropyl- (meth)acrylate radical; R2 is the radical of a saturated and/or unsaturated aliphatic monoalcohol with at least 6 carbon atoms and/or an alkyl or alkylene radical with at least 6 carbon atoms, and n is an integer of 1 or 2. The coating compositions cure at low temperatures and short curing times to provide films having excellent resistance to water, chemicals, and cor- rosion; and have good leveling characteristics and good adherence to di- verse substrates. - 2 -
291630
Honig Helmut
Pampouchidis Georgios
Fetherstonhaugh & Co.
Vianova Kunstharz Aktiengesellschaft
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