a novel process for modification of polyolefines and their copolymers thereof , enables the production of modified pp with minimal deterioration of molecular weight and low gel content pe and their copolymers and with minimal yellowness . the novel compound is comprised of polyolefin resin or a mixture of resins , unsaturated acidic monomer and organic peroxide , together with low volatility polar acrylic co - monomer and low softening point resin , in a continuous reactive reactor the novel process minimizes sublimation of maleic anhydride and improves distribution of monomers and initiator prior to the melting of the polyolefin .