Hydroxyalkyl carbamate-containing resins for cathodic...

Details Hydroxyalkyl carbamate-containing resins for cathodic... Hydroxyalkyl carbamate-containing resins for cathodic...

C - Chemistry, Metallurgy

25

D

402/125, 402/31,

C25D 13/06 (2006.01) C08G 59/40 (2006.01) C08G 71/00 (2006.01) C09D 5/44 (2006.01) C09D 163/00 (2006.01) C09D 201/02 (2006.01)

Patent

CA 1224588

HYDROXYALKYL CARBAMATE-CONTAINING RESINS FOR CATHODIC ELECTRODEPOSITION AND METHOD OF MAKING THE SAME ABSTRACT A cathodically electrodepositable, self-cross- linkable polymer is a hydroxyalkyl carbamate-containing resin having at least one tertiary amine and at least two hydroxyalkyl carbamate groups per molecule. The polymer is made by reacting an epoxy resin having an average epoxy equivalent weight of from about 300 to about 10,000 with one or more amines having at least one secondary amine group and at least one hydroxyalkyl carbamate group or precursor thereof. Hydrophobic amines may be co-reacted to enhance hydrophobicity of the polymer. An electrodeposition bath is made by acidifying the polymer to form an aqueous disper- sion. A low temperature-curable coating is attained by utilization of the polymer with a suitable quaternary or ternary compound catalyst.

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