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1. WO1993003101 - LOW TEMPERATURE CURING CATHODIC ELECTROCOATING COMPOSITION

Publication Number WO/1993/003101
Publication Date 18.02.1993
International Application No. PCT/US1992/006502
International Filing Date 03.08.1992
Chapter 2 Demand Filed 17.02.1993
IPC
C09D 5/44 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
5Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
44for electrophoretic applications
CPC
C09D 5/4473
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
5Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced
44for electrophoretic applications
4473Mixture of polymers
Y10S 524/901
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
524Synthetic resins or natural rubbers -- part of the class 520 series
901Electrodepositable compositions
Applicants
  • E.I. DU PONT DE NEMOURS AND COMPANY [US]/[US]
Inventors
  • CHUNG, Ding, Yu
  • GAM, Allisa
  • TESSMER, Robert, A.
Agents
  • FRICKE, Hilmar, L.
Priority Data
739,29801.08.1991US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LOW TEMPERATURE CURING CATHODIC ELECTROCOATING COMPOSITION
(FR) COMPOSITION DE REVETEMENT PAR ELECTRODEPOSITION CATHODIQUE DURCISSANT A BASSE TEMPERATURE
Abstract
(EN) An electrocoating composition containing an epoxy amine adduct which is the reaction product of a polyepoxide resin and an amine, an acrylic amine resin and a blocked polyisocyanate crosslinking agent; wherein the composition is prepared by blending a first emulsion of the epoxy amine adduct and the blocked polyisocyanate crosslinking agent with a second emulsion of the acrylic amine resin and a blocked polyisocyanate crosslinking agent; where the first and second emulsions are each individually formed by blending the adduct or resin with the blocked crosslinking agent and then adding an organic acid to form a salt which forms a stable aqueous emulsion.
(FR) Composition de revêtement par électrodéposition contenant un additif à base d'amine époxy constituant le produit de réaction d'une résine polyépoxyde et d'une amine, d'une résine aminée acrylique et d'un agent de réticulation à base de polyisocyanate bloqué. La préparation de la composition consiste à mélanger une première émulsion de l'additif à base d'amine époxy et de l'agent de réticulation à base de polyisocyanate bloqué avec une seconde émulsion de la résine aminée acrylique et d'un agent de réticulation à base de polyisocyanate bloqué; les premières et secondes émulsions sont formées chacune individuellement par mélange de l'additif ou de la résine avec l'agent de réticulation bloqué, puis par addition d'un acide organique afin de former un sel permettant d'obtenir une émulsion aqueuse stable.
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