Liquid polybutadiene (LPB) has many reactive carbon-carbon double bonds and therefore , various chemical modification is possible such as maleination and epoxidation which enable easy introduction of carboxylic radical or amino radical , into LPB. Moreover, chemically modified LPB is cured by oxidation polymerization or radical polymerization of carbon-carbon double bonds to become tough film . In this paper we explain synthetic technology, micro-structure, chemical modification and uses of LPB

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... , in particular application of cationic electro-deposition paint.