ANTIBACTERIAL LEAD-FREE CATIONIC ELECTRODEPOSITION COATING COMPOSITION

• Main Authors: YAMADA MITSUO, TAKEGAWA MASAHIRO, MURAMATSU KOSUKE, MURAKAMI RYOICHI
• Format: Patent
• Language: English; Korean
• Published: 16.05.2003
• Edition: 7
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; APPARATUS THEREFOR; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FILLING PASTES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; POLISHES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; TRAPPING; USE OF MATERIALS THEREFOR; WOODSTAINS

PURPOSE: To provide an antibacterial unleaded cationic electrodeposition coating composition which reduces the influence on the environment due to decreased concentrations of volatile organic compounds (VOC) and a lead ion, maintains the antibacterial properties to the same extent as before decreasing the concentrations of the VOC and lead ion and, in addition, excels in electrodeposition performance. CONSTITUTION: In the antibacterial unleaded cationic electrodeposition coating composition comprising an aqueous medium, a cationic epoxy resin and a binder resin containing a blocked isocyanate curing agent which are dispersed or dissolved in the aqueous medium, a neutralizing acid for neutralizing the cationic epoxy resin, an organic solvent, and an antibacterial agent, the content of volatile organic matter is ≤2 wt.% and the antibacterial agent is an isothiazolone based compound. 본 발명은 휘발성 유기분 함유량(VOC) 및 납이온 농도가 저감되어 환경에 미치는 영향이 적고, 항균성이 VOC 및 납이온의 저감 전과 동일한 정도로 유지되며, 전착 성능 또한 우수한 항균성 무연(無鉛) 양이온성 전착 도료 조성물에 관한 것이다. 본 발명은 수성 매체; 및 상기 수성 매체 중에 분산되거나 용해되는 것으로, 양이온성 에폭시 수지 및 블록 이소시아네이트 경화제를 포함하는 결합제 수지, 상기 양이온성 에폭시 수지를 중화하기 위한 중화산, 유기 용매 및 항균제를 포함하는 항균성 무연 양이온성 전착 도료 조성물에 있어서, 휘발성 유기분 함유량이 2중량% 이하이며, 항균제가 이소티아졸론계 화합물인 항균성 무연 양이온성 전착 도료 조성물을 제공한다.