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2. 发明公开

EP2349941A1 LOW V2O5 - CONTENT AND V2O5 - FREE PORCELAIN ENAMELS& xA; 有权转让
标题翻译： V2O5武器和V2O5自由中国搪瓷
公开(公告)号：EP2349941A1
公开(公告)日：2011-08-03
申请号：EP09781752.2
申请日：2009-08-12
申请人： Pemco Brugge BVBA
发明人： EFIMENKO, Svetlana , CREVITS, Nancy , SCHLEGEL, Christian
IPC分类号： C03C8/12 , C23D5/02
CPC分类号： C03C8/12 , C03C3/064 , C03C8/14 , C03C2207/04 , C03C2207/08 , C03C2207/10 , C23D5/02
摘要： The present invention relates to a low-V
2 O
5 - content and even V
2 O
5 -free porcelain enamel with improved dish-washer resistance, very good acid resistance and good adherence on various substrates. The invention moreover relates to a transparent low-V
2 O
5 - content and even V
2 O
5 -free porcelain enamel frit for application of enamel coatings with infinite colour range on a substrate made of aluminium, cast aluminium, aluminium alloy, aluminium-magnesium alloy, cast aluminium alloy, copper, austenitic stainless steel and mild steel, presenting improved dish-washer resistance, good acid resistance and good adherence on the substrate. The composition of the porcelain enamel in question comprises about 30 wt- % to about 50 wt-% SiO
2 , about 30 wt-% to about 40 wt-% R
2 O, about 15 wt-% to about 25 wt-% TiO
2 , about 0 wt-% to about 5 wt-% RO, about 0 wt-% to about 4 wt-% V
2 O
5 , about 0.3 wt-% to about 7 wt-% Fe
2 O
3 , about 0 wt-% to about 3 wt-% Sb
2 O
3 , about 0 wt-% to about 3 wt-% SnO
2 , about 0wt-% to about 2wt-% B
2 O
3 , about 0 wt-% to about 3 wt-% AI
2 O
3 , about 0 wt-% to about 4 wt-% P
2 O
5 , about 0 wt-% to about 1 wt-% MoO
3 , about 0 wt-% to about 2 wt-% F
2 , about 0 wt-% to about 4 wt-% ZrO
2 , about 0 wt-% to about 4 wt-% ZnO, about 0 wt-% to about 6 wt-% NO
x , R
2 O is a combination of alkaline oxides selected from the group of: Na
2 O 10 - 23 mol%, K
2 O 7 - 20 mol% and Li
2 O 1 - 6.5 mol%, wherein RO represent at least one earth alkali oxide and wherein the molar ratio of (Li
2 O + B
2 O
3 ) to TiO
2 amounts to 0.2 to 0.6.

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