Process for producing cathodically depositable paint binders

Details Process for producing cathodically depositable paint binders Process for producing cathodically depositable paint binders

C - Chemistry, Metallurgy

09

D

400/2018, 402/27

C09D 5/44 (2006.01) C08G 59/14 (2006.01) C08G 59/18 (2006.01) C08G 59/50 (2006.01)

Patent

CA 1236635

ABSTRACT OF DISCLOSURE Cathodically depositable binders water-dilutable upon neutralization comprising the reaction product of amine adducts of polyglycidylethers of polyphenols having an amine value based on tertiary amine groups of between about 30 and about 130 mg KOH/g, a hydroxy value based on primary hydroxy groups of between about 20 and about 200 mg KOH/g, and an average molecular weight of from about 1000 to about 20,000 with 0.5 to 20% b.w. based on the weight of the adduct of a polyoxyalkylene glycidyl ether to provide an adduct having polyoxyalkylene segments. The introduced hydrophilic segments allow for a reduction in the degree of neutralization neces- sary for stability of an electrodeposition bath which favor- ably influences the deposition equivalent and throwing power of the binder in a cathodic electrodeposition system.

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