the polymerization of the acrylate monomers a polymerization initiator which has been used in the prior art to induce the free radical reaction of the acrylate monomers to form a polymer is used and examples thereof include azobisisobutyronitrile benzoyl peroxide lauroyl peroxide t butyl peroxide dicumyl peroxide t butyl peracetate 2 2 bis t butylperoxy butane 2 5 bis t butylperoxy 2 5 dimethyl 3 hexyne and 2 5 bis t butylperoxy 2 5 dimethylhexane the polymerization initiator can be selected from the above exemplified polymerization initiators depending on the kinds of the selected polyolefin and acrylate monomer hereinafter the present invention will be described in more detail by the following examples it is to be understood however that these examples are not construed to limit the scope of the present invention as polyolefin a polyolefin blend was used the polyolefin blend was prepared by blending 50 parts by weight of polypropylene melt index 60 g 10 min and 100 parts by weight of poly ethylene co butyl acrylate manufactured by dupont melt index 4 g 10 min in a co rotating twin screw extruder d 20 mm l d 40 at a melting temperature of 170 190 u00b0 c the polyolefin blend was cooled in a cooling water bath and palletized with a pelletizer then the pellets were dried in a hot air oven at 80 u00b0 c for 3 hours into a 50 liter reactor equipped with a stirrer a heater and a cooler 6 0 kg of the polyolefin blend pellets 6 0 kg of n butyl acrylate 233 g of lauroyl peroxide and 27 5 kg of.