C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
402/187, 117/197
C08L 101/06 (2006.01) C08G 59/42 (2006.01) C08G 63/20 (2006.01) C08K 5/00 (2006.01) C09D 133/06 (2006.01) C09D 167/00 (2006.01)
Patent
CA 1116789
A b s t r a c t A highly-reactive powder resin composition suitable for use in the production of coatings comprising a mixture of A) at least one polymer containing groups selected from hydroxyl and epoxy-groups, having a melt viscosity of 2 000 to 20 000 cP at 160°C and a melting range of from 45 to 95°C; and B) at least one compound of formula (I) (cf. formula sheet) wherein R represents a radical selected from the group consisting of a) an unsubstituted mono- to pentavalent aliphatic hydrocarbon group containing from 1 to 28 carbon atoms, b) a radical a) being substituted by one of the groups an ester group containing from 1 to 6 carbon atoms and a carboxy group, c) a radical a) being interrupted at least once by one of the linkages an O-ether linkage and a -HC-CH- group, d) a piperazine group, e) a group of one of the formulae (XVI) and (XVII) an aromatic group containing from 6 to 43 carbon atoms of one of the formulae (X) to (XV) (cf. formula sheet) wherein R3 is a member selected from the group consisting of hydrogen, a halogen atom, an alkyl and an alkoxy group each containing from 1 to 6 carbon atoms and X represents a member selected from the group consisting of an oxygen atom, sulphinyl, sulphonly carbonyl and a group of the formulae (XVa) (cf. formula sheet) in which n has the value 1 to 8, R1 represents a radical selected from the group consisting of phenyl, naphthyl, phenanthryl, aminomaphthyl and a heterocyclic tetra- hydrofuryl group such that the anhydride grouping is attached to the said R1 group on vicinyl carbon atoms; and y is an integer from 2 to 4 said comoment B having a melt viscosity of 50 to 15 000 cP at 160°C and amelting range of from 40 to 250°C; the combination of A and B having a melt viscosity of from 500 to 20 000 cP at 160°C, a stability of from 1 to 15 at 100°C, a flow time of from 20 to 600 s at 160°C, and a gel time of from 35 to 1,200 s at 160°C and an article coated with said composition.
266819
Kraft Kurt
Walz Gerd
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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