PP copolymer is a thermoplastic polymer obtained from the copolymerization of propylene monomer with ethylene monomer or another alpha-olefin monomer. A copolymer is obtained by combining two or more monomers that have a different effect on properties such as hardness, impact strength, barrier properties and melting temperature. PP copolymer has a lower melting point than PP homopolymer and shows better impact strength. Therefore, PP copolymer is used in a variety of applications, especially in the manufacture of products that require impact resistance and high temperature resistance.