Cathodically depositable paint binders based on the reaction pro

Details Cathodically depositable paint binders based on the reaction pro Cathodically depositable paint binders based on the reaction pro

1985-03-04

1986-01-07

Nielsen, Earl

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

2041817, 523415, 523416, 525504, C08G 5954

Patent

active

045635153

ABSTRACT:
Cationic synthetic resin binders free of epoxy groups for the formulation of electrodeposition paints are described. The binders are the reaction product of an epoxy resin carrying at least two epoxy groups and having an epoxy equivalent of 190 to 1000, with from 0.1 to 1.0 amino groups per available epoxy group of a secondary amine carrying carboxylic acid amide groups. Upon being crosslinked on stoving with a suitable hardening component, the binders have improved water dilutability, permitting a reduction of the degree of neutralization necessary for electrodeposition application and improved intercoat adhesion to addition coats. These improved characteristics are significant with respect to an increase of current yield and in adhering additional coatings of a paint system.

REFERENCES:
patent: 4036795 (1977-07-01), Tominaga
patent: 4274989 (1981-06-01), Tominaga et al.
patent: 4341676 (1982-07-01), Patricca et al.
patent: 4367319 (1983-01-01), Pampouchidis et al.
patent: 4383103 (1983-05-01), Kluger
patent: 4477642 (1984-10-01), Geist et al.

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