Linear low-density polyethylene is manufactured from polyethylene. It has unique rheological or melt-flow properties. In 1960, DuPont Canada started the first production line for commercial production of linear low-density polyethylene. LLDPE is less shear sensitive than HDPE and LDPE, due to its narrower molecular weight distribution and shorter chain branching. During the shearing process, LLDPE remains more viscous and, therefore, it is harder to process than LDPE of an equivalent melt index. Rheological properties of LLDPE can be summarized as ‘soft in extension’ and ‘stiff in shear’. Linear low-density polyethylene is widely used in the manufacture of plastic bags and sheets, plastic wraps, stretch wraps, pouches, toys, covers, lids, pipelines, buckets and containers, covering of cables, and flexible tubing.
Based on process type, the global linear low-density polyethylene market has been segmented into gas phase, solution phase, and slurry loop. Gas phase is the dominant process type segment of the global market. It is anticipated to expand at a rapid pace during the forecast period. The gas phase process has several advantages such as it has low initial installation costs, low temperature, and low reaction time.
Based on application, the global linear low-density polyethylene market has been segmented into rotomolding, films, injection molding, and others (including metal coating, extrusion, and masterbatches). The films segment accounted for a dominant share of the global market in 2017. The segment is estimated to expand rapidly during the forecast period. The primary factor driving the films segment is high demand for LLDPE films from the flexible food packaging industry. LLDPE films are also used in the construction industry as water barriers, as these films contain some percentage of organophilic layered double hydroxides that have optimal thermal and water vapor barrier properties.
Based on region, the global linear low-density polyethylene market has been classified into North America, Europe, Asia Pacific, Middle East & Africa, and Latin America. In terms of demand, Asia Pacific held a leading share of the global linear low-density polyethylene market in 2017. The region is a major producer of linear low-density polyethylene. Middle East & Africa and North America are other significant consumers of linear low-density polyethylene.