C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
117/77
C23C 18/31 (2006.01) C23C 18/18 (2006.01)
Patent
CA 1111721
Abstract of the Disclosure The invention relates to a method for the currentless catalytic precipitation of aluminum. The surface of insulating and conductive materials (substrates) to be aluminized is catalyzed, while a film-forming moisture- insensitive layer is developed, with a compound active at the boundary surfaces, by a brief immersion on a dilute solution of a modified ester or acylate of titanium, zirconium or vanadium, substituted at the metal atom with short- and long-chain organic radicals or a chloride of the transition metals of the IV and V secondary group of the periodic system of the elements and a water-containing metal soap of a polyvalent metal, preferably aluminum soaps; is intensively rinsed with aprotic solvents, preferably having a boiling point of over 100°C; and is immersed in a 1 to 4% solution of trial- kylaminalanes in a solvent mixture of aromatic and highly viscous aliphatic compounds. A homogeneous and strongly adhering aluminum coating is thereby obtained. Insulating and conductive materials and components, e.g., electronic components and reflectors can in this manner be homogeneously coated with strongly adherent aluminum.
284271
Birkle Siegfried
Dotzer Richard
Rissel Eva
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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