| 摘要 |
<p>PURPOSE:To obtain the title yarn having slight reduction in bond strength under a condition of repeated blending strength, by successively forming a first layer containing RFL on rubber reinforcing yarn, a second layer having affinity for the first layer and a third layer containing rubber having the same qualities as those of matrix rubber. CONSTITUTION:A first layer containing a water-soluble condensate of RF and preferably vinylpyridine styrene butadiene terpolymer latex is formed on rubber reinforcing yarn, a second layer which has affinity for the first layer and comprises, for example, a halogen-containing polymer (e.g. chlorinated rubber or chloroprene), an isocyanate and a vulcanizing agent and further a third layer which comprises rubber (e.g. chlorosulfonated polyethylene or nitrile rubber) having the same qualities as those of matrix rubber, a vulcanizing agent and inactive fine powder of carbon black or silica are successively made to give rubber reinforcing yarn having slight reduction in bond strength even by long-term use under a condition of applying repeated bending strength and high bond strength even in use of chlorosulfonated rubber.</p> |
