Stock material or miscellaneous articles – Composite – Of epoxy ether
Patent
1994-06-28
1995-06-27
Krass, Frederick
Stock material or miscellaneous articles
Composite
Of epoxy ether
523404, 523415, 528 93, 528 94, 528104, 528091, C08L 6300
Patent
active
054278570
ABSTRACT:
An improved aqueous cathodic electrocoating composition of an aqueous carrier having dispersed therein a film forming binder of (1) an epoxy resin-amine adduct and (2) a blocked polyisocyanate crosslinking agent; wherein the improvement is the use of a branched epoxy resin to form the adduct which is the reaction product of a polyhydric phenol and a branched epoxy macromonomer formed by the self condensation of an epoxy resin in the presence of a catalyst; the branched epoxy resin has an epoxy equivalent weight of about 700-2,000 and provides an electrocoating composition that has improved throw power and that forms coatings that have improved corrosion resistance in comparison to conventional electrocoating compositions formed from linear epoxy resins.
REFERENCES:
patent: 3984299 (1976-10-01), Jerabek
patent: 4302524 (1981-11-01), Mandella et al.
patent: 4474929 (1984-10-01), Schrader
patent: 4722990 (1988-02-01), Koenig et al.
patent: 4795791 (1989-01-01), Koenig et al.
patent: 4824927 (1989-04-01), Dobbelstein et al.
patent: 5070149 (1991-12-01), Debroy et al.
patent: 5128393 (1992-04-01), Peng et al.
E. I. Du Pont de Nemours and Company
Fricke Hilmar L.
Krass Frederick
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