Patent ID: 6374889
Filing Date: 2002-04-23
Classification: B60C,C08L,Y10T

Abstract:
A tire sidewall comprising a blend of rubber and a copolymer of an isoolefin, para-alkylstyrene and bromoalkylstyrene, said blend comprising 35 to 65 phr of the copolymer, wherein said bromoalkylstyrene and said para-alkylstyrene are represented by the following formula:X=[1.91âˆ’(0.094Ã—Y)]Â±Z wherein â€œZâ€ =0.1, â€œXâ€  is mole percent bromoalkylstyrene and â€œYâ€  is weight percent para-alkylstyrene and has a value of 9.5 to less than 20.