| 摘要 |
<p>1,228,305. Coatings. CONTINENTAL OIL CO. 17 March, 1969 [8 May, 1968], No. 13840/ 69. Heading B2E. [Also in Division C3] Surfaces, such as metal, are coated by applying a grease-like composition comprising 2-80 parts by weight of a non-volatile diluent, 5-55 parts by weight of an oil-soluble dispersing agent and 1-45 parts by weight of a basic alkaline metal earth compound, the composition having an acetic base number of at least 50, is thixotropic, does not flow at 210‹F. and has a dropping point of at least 480‹F, and then applying to the coated surface a conventional paint. The alkaline earth metal compound may be of calcium or barium and the non-volatile diluent may be a liquid synthetic lubricating oil, such as polymers of propylene, polyoxyalkylenes, polyoxypropylene, dicarboxylic acid esters, and esters of acids of phosphorus, vegetable oils such as corn oil, cotton seed oil and castor oil, animals oil such as lard oil and sperm oil, and waxes such as natural and petroleum waxes particularly microcrystalline waxes. The oilsoluble dispersing agent may be a sulphonic acid, carboxylic acid, phosphorus sulphidetreated olefines and their metal salts. The conventional paint may be a two-component imine cured epoxy, two-component urethane, an alkyd enamel, a phenolic enamel, an acrylic water emulsion or vinyl.</p> |
