| 摘要 |
FIELD: corrosion protection. SUBSTANCE: composition for protection metal structures, chiefly buried metallic pipelines contains, wt %: high-melting bitumen 36.4- 40.0, asphalt obtained form butane- and gasoline-deasphalting of petroleum residues 3.0-4.0, petroleum-polymer tar 4.4- 9.1, corrosion inhibitor 2.0-4.0, and solvent (xylene or "nefras") 43.5-45.5. EFFECT: improved protective properties. 2 cl, 2 tbl
|
