| 摘要 |
<p>1,052,627. Coatings. ALLIED CHEMICAL CORPORATION. Jan. 20, 1965 [Jan. 20, 1964], No. 2567/65. Heading B2K. [Also in Division C3] Coating compositions for application to rigid substrates contain an oxychloropolyethylene having a Cl 2 content of 30 to 80%, an O 2 content of 0.3 to 3% based on the weight of oxygen and carbon, and an intrinsic viscosity of 0.08 to 2.0 decilitres/gm. in o-dichlorobenzene at 100‹C. The compositions may be based on other chlorine-containing resins, those used in the examples being a vinyl chloride-vinyl acetate copolymer and a vinyl chloride-vinylidene chloride copolymer. The solvent employed is preferably xylene, cumene, toluene, methyl ethyl ketone or a petroleum aromatic. Other ingredients listed include plasticizers, modifying resins, drying oils, pigments, fillers and HCl scavengers such as a liquid epoxy resin. The coating compositions in the examplcs are applied to steel, galvanized metal, glass or polyvinyl chloride surfaces.</p> |
