Water-based coating compositions based on epoxy resin- amino...

Details Water-based coating compositions based on epoxy resin- amino... Water-based coating compositions based on epoxy resin- amino...

C - Chemistry, Metallurgy

08

G

400/5022, 117/70

C08G 59/52 (2006.01) C09D 163/00 (2006.01)

Patent

CA 1099044

Abstract of the Disclosure Coating compositions which may be applied by conventional techniques as well as by electrodeposition are provided by reacting a polyepoxide with an amino acid containing at least one amine group and one carboxyl group, wherein the amine group of the acid is preferentially reactive with the epoxy groups. The resultant reaction product can then be solubilized by neutralizing at least a portion of the acid functionality thereof with an amine or other base. Especially useful amine acids are the aminobenzoic acids. The reaction product in combination with a curing or crosslinking agent can be used in making sanitary liners for metal containers suitable for packaging beer and other beverages. These compositions provide containers with cured liners which do not impart undesirable turbidity or taste char- acteristics to the beer, soft drinks or fruit juices packaged therein.

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