| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition excellent in scorch performance and compression permanent distortion resistance performance, and capable of stable working by using a specified composition containing bromination compound of copolymerization rubber of specified isomonoolefine and p- alkyltyrene, zinc oxide, and bromination alkylphenolic resin. SOLUTION: BIMSS contains 5 to 25 wt.% of p-alkylstyrene (PMS) and 1.5 wt.% or more of bromine(Br), and is bromination compound of copolymerization rubber of isomonoolefine having 4 to 7 of carbon atom and p-alkylstyrene, in which a weight ratio between p-alkylstyrene unit and bromine unit is 0.15<=Br/PMS<=0.40. In 100 pts.wt. of the BIMS, zinc oxide(ZnO) contains 0.1 to 10 pts.wt., bromination alkylphenolic resin contains 1 to 15 pts.wt. so as to form a rubber composition for a hose. The composition is excellent in moisture permeability resistance, weatherproofing, compression permanent distortion resistance performance, and work is stably executed. |
