Abstract: An object of the present invention is to provide a sterilization method for a medical rubber product in which non-eluting characteristics are maintained even after sterilization with gamma ray and with which less troubles occur in a medical product manufacturing process. The medical rubber product according to the present invention is a medical rubber product formed from an elastic material and sterilized by being irradiated with gamma ray or electron ray (beta ray), wherein, when measurement is performed on a surface portion of the elastic material through ATR by using an FT-IR, if an area of an infrared absorption peak at around a wave number of 1650 cm?1 in an infrared absorption spectrum obtained through the measurement is defined as As and an area of an infrared absorption peak at around a wave number of 1470 cm?1 in the infrared absorption spectrum is defined as Bs, Ss=(As/Bs)×100?6 is satisfied.

Abstract: A sterilization method for a medical rubber part is a sterilization method for a medical rubber part that can include a body made from an elastic material and that can include an inactive resin film stacked on at least a portion of a surface of the body, where the sterilization method can include irradiating a packaging article with gamma ray, the packaging article accommodating a plurality of the medical rubber parts and having an oxygen concentration not higher than 5%.

Abstract: A medical rubber part in which non-elution characteristics are maintained even after sterilization with gamma ray, a packaging article for the medical rubber part, and a medical rubber composition for manufacturing the medical rubber part can be provided or implemented. The medical rubber composition can contain or comprise: a (a) base polymer containing a halogenated isobutylene-isoprene rubber; a (b) polyethylene; and a (c) triazine derivative as a crosslinking agent. A proportion of the triazine derivative contained per 100% by mole of a halogen of the halogenated isobutylene-isoprene rubber contained in the (a) base polymer can be 1% by mole to 15% by mole.

Abstract: A sterilization method for a medical rubber part in which non-elution characteristics can be maintained even after sterilization with gamma ray. The sterilization method for a medical rubber part can include irradiating, with gamma ray, a packaging article for a medical rubber part made from an elastomer that contains a polyethylene, the packaging article accommodating a plurality of the medical rubber parts.

Abstract: Provided is a pneumatic tire in which a sealant layer entirely exhibits sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by continuously and spirally applying a generally string-shaped sealant to the inner periphery of a tire in the tire width direction from one side to the other, the attachment start portion of the sealant being located tire-widthwise inward from the tire-widthwise end of the sealant layer.

Abstract: An object of the present disclosure is to provide an adhesive composition for an organic fiber which has excellent heat-resistant adhesiveness that allows an organic fiber and a rubber composition to maintain high adhesive force even when being exposed to high temperatures. An adhesive composition for an organic fiber contains: (a) an epoxy compound that is a sorbitol polyglycidyl ether and has a chlorine content not greater than 9.6% by weight; and (b) a blocked isocyanate.

Abstract: Provided is a pneumatic tire in which a sealant layer entirely exhibits sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by continuously and spirally applying a generally string-shaped sealant to the inner periphery of a tire in the tire width direction from one side to the other, the attachment start portion of the sealant being located tire-widthwise inward from the tire-widthwise end of the sealant layer.