| abstract |
A rubber composition widely usable as belts, hydraulic hoses, etc., which comprises a polymer obtained by adding maleic anhydride or its derivative to a highly saturated, nitrile rubber polymer having an iodine value of 80 or less. n ABSTRACT n A rubber composition comprising a polymer obtained by adding maleic anhydride or a derivative thereof to a nitrile-group-containing highly saturated polymer rubber having an iodine value of 80 or less, which can be widely utilized in belts, hoses such as for hydraulic ones. |