EP 0388816 A1 19900926 - Passivation of pyrophoric metals.
Title (en)
Passivation of pyrophoric metals.
Title (de)
Passivierung von pyrophoren Metallen.
Title (fr)
Passivation de métaux pyrophoriques.
Publication
Application
Priority
DE 3908815 A 19890317
Abstract (en)
For the passivation of pyrophoric metals, in particular magnesium, the metal is coated with 0.5 to 5% by weight of an s-triazine derivative, such as melamine, benzoguanamine, melam, melem and/or melon, melamine- and/or benzoguanamine-formaldehyde condensates and/or guanidine, cyanoguanidine, guanylurea, guanidine phosphate, guanidine sulphamate or guanidine cyanurate, based on the weight of the metal, as a passivating agent. Metals passivated in this manner are suitable in particular as treatment agents for metallurgical melts.
Abstract (de)
Zur Passivierung von pyrophoren Metallen, insbesondere Magnesium, beschichtet man das Metall mit 0,5 bis 5 Gew.-% eines s-Triazin-Derivates wie Melamin, Benzoguanamin, Melam, Melem oder/und Melon, Melamin- oder/und Benzoguanamin-Formaldehyd-Kondensationsprodukt oder/und Guanidin, Cyanoguanidin, Guanylharnstoff, Guanidinphosphat, Guanidinsulfamat oder Guanidincyanurat, bezogen auf das Gewicht des Metalles, als Passivierungsmittel. So passivierte Metalle eignen sich besonders als Behandlungsmittel für metallurgische Schmelzen.
IPC 1-7
IPC 8 full level
B22F 1/10 (2022.01); C21C 1/02 (2006.01); C21C 1/10 (2006.01); C23C 24/00 (2006.01); C23C 30/00 (2006.01); C23F 11/00 (2006.01); C23F 11/14 (2006.01)
CPC (source: EP KR US)
B22F 1/10 (2022.01 - EP KR US); C21C 1/025 (2013.01 - EP US); C21C 1/105 (2013.01 - EP US); C23C 24/00 (2013.01 - EP US); C23C 30/00 (2013.01 - EP US); C23F 11/14 (2013.01 - KR); C23F 11/146 (2013.01 - EP US); C23F 11/149 (2013.01 - EP US)
Citation (search report)
- [A] US 4159906 A 19790703 - MEICHSNER WALTER, et al
- [A] US 4541867 A 19850917 - NEELAMEGGHAM RAMASWAMI [US], et al
- [A] EP 0046139 B1 19840718
- [A] US 3096147 A 19630702 - FULMER RICHARD W
- [A] US 2496354 A 19500207 - MOYER MELVIN I, et al
- [A] EP 0129491 A1 19841227 - SOFREM [FR]
- [X] PATENT ABSTRACTS OF JAPAN, Band 13, Nr. 354 (E-802)[3702], 8. August 1989, Seite 11 E 802; & JP-A-01 114 006 (SANKYO SEIKI Mfg CO., LTD) 02-05-1989, (Kat. P)
- [A] PATENT ABSTRACTS OF JAPAN, Band 1, Nr. 102 (C-77)[2288], 10. September 1977, Seite 2288 C 77; & JP-A-52 63 811 (UBE KOSAN K.K.) 26-05-1977
Designated contracting state (EPC)
AT BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0388816 A1 19900926; EP 0388816 B1 19920122; AT E71866 T1 19920215; CA 2011785 A1 19900917; CA 2011785 C 19951219; DE 3908815 A1 19900920; DE 59000035 D1 19920305; DE 8915539 U1 19901004; FI 901342 A0 19900316; FI 90211 B 19930930; FI 90211 C 19940110; JP H02282402 A 19901120; JP H0768564 B2 19950726; KR 0137936 B1 19980715; KR 900014640 A 19901024; US 5089049 A 19920218
DOCDB simple family (application)
EP 90105021 A 19900316; AT 90105021 T 19900316; CA 2011785 A 19900308; DE 3908815 A 19890317; DE 59000035 T 19900316; DE 8915539 U 19890317; FI 901342 A 19900316; JP 6285590 A 19900315; KR 900003530 A 19900316; US 48279390 A 19900221