C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 185/02 (2006.01) C09D 5/38 (2006.01) C09D 7/12 (2006.01) C09D 163/00 (2006.01)
Patent
CA 2363267
The invention is directed to gassing stabilized aqueous coating compositions comprising A) a metallic pigment and at least one reaction product of (a) 5 to 95 weight percent of a at least one phosphonic acid derivative selected form compound I and II (see formula I) wherein R1 is H or O=P(OH)2 ; R2 and R3 are independently H, OH or an aliphatic, cycloaliphatic and aromatic substituent having 1 to 25 carbon atoms and optionally up to 10 heteroatoms of at least one of oxygen and phosphorus; and R' is an aliphatic, cycloaliphatic and aromatic substituent having 1 to 25 carbon atoms and optionally up to 10 heteroatoms of at least one of oxygen and phosphorus; (b) 5 to 95 weight percent of a at least one compound having at least two epoxy groups and a number average molecular weight Mn of 300 to 5000 g/mol; and (c) 0 to 90 weight percent of a compound having one epoxy-functional group, wherein the proportions by weight of components (a), (b) and (c) total 100 weight percent. B) at least one metallic pigment.
Bruylants Paul
Huybrechts Josef
Kirshenbaum Kenneth S.
Koerner Michael
E.i. Du Pont de Nemours And Company
Torys Llp
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