| 摘要 |
<p>560,848. Coating metals. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Oct. 15, 1942, No. 14472. Convention date, Oct. 25, 1941. Drawings to Specification. [Class 82 (ii)] Prior to the production of phosphate coatings on metal and alloy surfaces, the surface is activated by applying an aqueous solution of disodium orthophosphate and at least one water-soluble titanium compound. The solution is prepared as described in Specification 560,847.</p> |
