CATHODIC ELECTRODEPOSITION COATINGS CONTAINING AN ANTIOXIDANT ADDITIVE

An improved aqueous electrocoating composition having a binder of an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent; wherein the improvement is the use of an antioxidant additive which i s a combination of a phenolic antioxidant and a sulfur-containing antioxidant. The additive r...

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Bibliographic Details
Main Authors CHUNG, DING Y, KIRSHENBAUM, KENNETH S
Format Patent
LanguageEnglish
French
Published 21.10.2003
Edition5
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
FILLING PASTES
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
INKS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:An improved aqueous electrocoating composition having a binder of an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent; wherein the improvement is the use of an antioxidant additive which i s a combination of a phenolic antioxidant and a sulfur-containing antioxidant. The additive reduces overbake yellowing of the composition and the intercoat delamination of the composition and the topcoat upon exterior exposure.
Bibliography:Application Number: CA19922084566