| 摘要 |
PURPOSE:To raise resistance to liquid leakage by using a sealant obtained by adding polybutene to asphalt. CONSTITUTION:The sealant layer 8 consisting of asphalt and polybutene is formed between the metal sealing plate 1 serving as negative side terminal and the packing 6 of nylon, etc. said sealant is obtained by mixing a blown asphalt and polybutene in a proportion of 100:50 by weight, and the sealant is dissolved in an appropriate organic solvent, e.g., benzene, toluene, etc., and then coated on the surface of the metal sealing plate 1 or injected into between the metal sealing plate and the packing. |
