Random Copolymer is the third product category in Regal Petrochemical plant.
The random copolymer of PP contains chains with a small number of ethylene
or higher olefin units (such as butene or hexane), dispersed randomly among
the propylene units. The presence of ethylene in the polymer chain reduces
the tendency to crystallize and results in improved impact strength, a softer
feel, a wider range of heat seal ability, resistance to creasing and improved
clarity. Due to the lower crystallinity, random copolymers have a lower melting
point and specific gravity than the homopolymer. Random copolymers are
primarily used in film, blow molding, and injection molding applications that
require high clarity, good impact strength at low temperatures, some stiffness,
and moisture barrier properties. Blow molding applications include hot-filled
and multilayer barrier bottles and refrigerated products for medical and food
packaging. Rigid and semi-rigid packaging, video cassette cases, toys, storage
trays, and reusable food containers are injection molded. Film applications
include flexible packaging and consumer products. Unoriented heat-seal
films are used for packaging in food and clothing and to provide strength and
barrier layers in disposable diapers. Oriented films provide high clarity, gloss,
and strength for shrink-wrap applications in toys, games, cigarettes, and foods.