C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
402/252
C08L 63/10 (2006.01) C08G 18/67 (2006.01) C08G 59/14 (2006.01) C08G 59/18 (2006.01) C08G 59/40 (2006.01) C09D 5/44 (2006.01)
Patent
CA 1233936
- 56 - ABSTRACT OF THE DISCLOSURE A crosslinkable composition of matter is provided, which comprises first and second chain extended diepoxide resins, one or both of which are prepared using an excess of diepoxide reactant and modified by reaction with hydroxy functional secondary amine. The first resin, diene func- tional aminoepoxy resin, and the second resin, blocked dieneophile Functional aminoepoxy resin, are co-reactive at elevated cure temperature. The diene functional amino- epoxy resin comprises the reaction product of diepoxide with diene chain extending reactant and, optionally, mono- functional end-capping reactant such as monohydroxy func- tional diene. The blocked dieneophile functional aminoepoxy resin comprises the reaction product of diepoxide with amine functional blocked dieneophile chain extending reactant and, optionally, monofunctional end-capping reactant such as monohydroxy functional blocked dieneophile. The composition may further comprise crosslinking agent reactive with hydroxy functionality of the resins. The crosslinkable composition of matter is useful in coating and other applications, especially solvent-based primer coating compositions and cathodic electrocoating composi- tions.
470872
Ford Motor Company Of Canada Limited
Sim & Mcburney
LandOfFree
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