Cathodic electrocoating binders

Details Cathodic electrocoating binders Cathodic electrocoating binders

1978-09-26

1979-10-23

Nielsen, Earl A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

204181C, 260 292EP, 528 45, 528107, 528227, 525406, 525489, 525512, C08G 5914

Patent

active

041721934

ABSTRACT:
Cathodic electrocoating binders based on polycondensation products which contain amino groups and which are, at least partially, in the form of their ammonium salts or quaternary ammonium salts.
The polycondensation products containing amino groups are obtained by adduct formation of p-hydroxyacetophenone with polymers containing epoxide groups, followed by reaction of these adducts with formaldehyde and a secondary amine.
The electrocoating binders of the invention may be used for coating metallic substrates and give coatings which are particularly corrosion-resistant and adhere particularly firmly.

REFERENCES:
patent: 2801222 (1957-07-01), Greer
patent: 3637597 (1972-01-01), Jalics
patent: 3936413 (1976-02-01), Wurmb et al.
patent: 4076676 (1978-02-01), Sommerfeld
patent: 4101486 (1978-07-01), Bosso et al.
Tokyo Shibaura Electric, Ltd., Derwent Abstract of Japan Pat. No. 74/129539.
Tanimoto et al., "Polymers Having Mannich Base Groups", Chemical Abstracts 69, 78078a, (1968).
Pogosyan et al., "Styrene Derivatives", Chemical Abstracts 72, 89971z, (1970).

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