| abstract |
A butyl rubber polymer of the present invention, an olefin polymer of ethylene with at least one α-olefin, and optionally at least one diene, and a rubber blend containing 2 to 5 phr peroxide curing agent. The present invention also relates to peroxide curable rubber blends containing butyl polymers, EP (D) M rubber polymers and 1,2-polybutadiene polymers. Molded articles made from the above formulations are used as medicine containers, condenser caps, sealing materials for fuel cells, electrolyte containing containers, rings, buffers, sealing materials and sealants. |