High-Density Polyethylene (HDPE) :
HDPE has a low degree of branching and thus low intermolecular forces and tensile strength.
HDPE can be produced by chromium/silica catalysts, Ziegler-Natta catalysts.
The lack of branching is ensured by a suitable choice of catalyst and reaction conditions.
HDPE is used in products and packaging such as milk jugs, detergent bottles, butter tubs, garbage containers and water pipes. Some toys are manufactured from HDPE.