Patent ID: 7956134
Filing Date: 2011-06-07
Classification: C08F,C08K,C08L

Abstract:
1. A modified butyl rubber composition comprising (I) a modified butyl rubber, obtained by a modification reaction of 100 g of a butyl rubber in the presence of 0.001 to 0.5 mole of a compound (a) having a nitroxide-free radical, stable in the presence of oxygen at an ordinary temperature, in the molecule thereof and a radical initiator (b), (II) at least two kinds of bi- or more-functional radical polymerizable monomers (c) and (III) an organic peroxide, as a cross-linking agent (d), in an amount of 0.05 to 15 parts by weight, based upon 100 parts by weight of the rubber composition containing the modified butyl rubber.