(a) Polythene: Ethylene is subjected to polymerization under high temperature in presence of catalyst to obtain polythene. This is flexible and strong plastic. It is used for making bags, bottles, pipes, tubes, etc.
(b) Polyvinyl Chloride: It is obtained by polymerisation of vinyl chloride. It is used for making pipes, shoes, slippers, bags, raincoat, toys, phonogram record, insulating layer, etc.
(c) Poly acrylo nitrile: This is obtained by polymerization of vinyl cyanide. It is used for making sweater, wool-like fibre, pillow, quilt, etc.
(d) Poly-styrene: This is obtained by polymerization of vinyl benzene (styrene). It is used for making cups, bottle caps, refrigerator parts, wall tiles, packing materials, etc.
