Cationic electro-deposition coating compositions

Details Cationic electro-deposition coating compositions Cationic electro-deposition coating compositions

2006-05-16

2006-05-16

Moore, Margaret G. (Department: 1712)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C524S408000, C525S113000

Reexamination Certificate

active

07045575

ABSTRACT:
A cationic electro-deposition coating composition, comprises: Component (A): an amino-containing epoxy resin (A) obtained by adding an amino-containing compound (a-2) to an epoxy resin (a-1) having an epoxy equivalent of from 400 to 3000, Component (B): an amino-containing acrylic resin (B) obtained by adding an amino-containing compound (b-4) to a copolymer resin obtained by radical copolymerization of, as essential components, a polylactone-modified hydroxyl-containing radical copolymerizable monomer (b-1), which is obtained by adding a lactone to a hydroxyl-containing acrylic monomer (b), and glycidyl (meth)acrylate (b-2), and another radical copolymerizable monomer (b-3); and Component (C): a blocked polyisocyanate curing agent (C) as a curing component, the component (A), component (B) and component (C) being added in amounts of 5 to 80 wt %, 5 to 80 wt % and 10 to 40 wt %, respectively, based on the total solid content of the components (A), (B) and (C).

REFERENCES:
patent: 6031028 (2000-02-01), Iino et al.
patent: 6333367 (2001-12-01), Kato et al.
patent: 6492027 (2002-12-01), Nishiguchi et al.

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