Polyethylene (LLDPE)
The linear low-density polyethylene resin supplied by Chelora Chemicals — a comonomer-modified polyolefin combining film strength with processability — exported from Indonesia as virgin pellet with full batch documentation on every shipment.
What LLDPE is, and why buyers source it
A working overview of the resin's comonomer-modified linear structure, how that structure improves film strength, and the grades Chelora Chemicals keeps in regular supply.
Linear Low-Density Polyethylene is a copolymer of ethylene with a small proportion of a higher alpha-olefin comonomer — commonly 1-butene, 1-hexene or 1-octene — introduced specifically to create short, uniform, controlled side branches along an otherwise linear backbone. Unlike LDPE's irregular, free-radical-generated branching, LLDPE's branches are deliberately placed by the comonomer and catalyst system, giving a more linear chain overall that packs into a denser, more uniform crystalline structure than LDPE while still disrupting packing enough to keep density below HDPE's range.
At room temperature it is supplied as a translucent white pellet. That controlled branching gives LLDPE a notably better balance of tensile strength, puncture resistance and tear strength at a given gauge than LDPE, which is the primary reason it has displaced a meaningful share of LDPE's traditional film volume.
Where it fits in the value chain
LLDPE's improved mechanical strength per unit gauge allows film converters to down-gauge — use a thinner film for the same performance — which has made it the dominant resin in stretch film, heavy-duty sacks, and general-purpose blown film where cost-per-bag economics reward thinner gauge without sacrificing strength. Rotomoulding grades, typically using 1-hexene or 1-octene comonomer for better low-temperature impact resistance, are used for tanks and other hollow moulded parts.
Grades we supply
Chelora Chemicals offers LLDPE in butene-, hexene- and octene-comonomer grades across blown film, cast film and rotomoulding melt-index ranges. Each grade is supplied with a batch-wise certificate of analysis covering melt index, density and comonomer type.
How LLDPE is produced
An overview of the production route for orientation purposes. Our manufacturing partners' own process parameters and in-process controls are proprietary and are not disclosed beyond what is needed to interpret the certificate of analysis.
LLDPE is produced by low-pressure copolymerisation of ethylene with a higher alpha-olefin comonomer — most commonly 1-butene, 1-hexene or 1-octene — over a Ziegler-Natta or metallocene coordination catalyst, in gas-phase, solution or slurry reactor systems. The catalyst inserts ethylene and comonomer units into the growing chain in a controlled sequence, placing a short alkyl branch (ethyl, butyl or hexyl, depending on comonomer) at each comonomer insertion point along an otherwise linear backbone, in contrast to the random, free-radical branching of LDPE.
The comonomer type and content are the principal levers used to tune the finished resin's density, crystallinity and mechanical property balance: a hexene or octene comonomer, at the same content, typically gives better toughness and lower haze than a butene comonomer, which is why premium film grades more often specify the heavier comonomers. Unreacted ethylene and comonomer are separated and recycled, and the resin is pelletised with the appropriate additive package.
Industries and processes that use it
LLDPE is consumed across stretch film, heavy-duty sacks, general-purpose blown film and rotomoulded parts. The fields below account for most of the demand we see through our export desk.
Stretch & Shrink Film
Blown into stretch wrap and shrink film for pallet and bundle wrapping, valued for its puncture and tear resistance at thin gauge.
Heavy-Duty Sacks & Liners
Converted into heavy-duty industrial sacks and liners where strength at reduced gauge lowers material cost per unit.
General-Purpose Packaging Film
Blown or cast into bags, pouches and general packaging film, often blended with LDPE to balance clarity and strength.
Rotomoulded Tanks & Parts
Hexene- or octene-comonomer grades rotomoulded into tanks, containers and other hollow parts needing good low-temperature impact resistance.
How the resin is typically converted forward
The linear, comonomer-controlled branching structure governs almost all of LLDPE's further processing behaviour. The categories below account for most of the ways it is converted into a finished part.
Film Blowing
Extruded through an annular die and inflated into a thin-walled bubble; LLDPE's strength allows thinner gauge than LDPE at equivalent performance.
Cast Film Extrusion
Extruded through a flat die and quenched on a chilled roll for high-clarity cast film and stretch-wrap applications.
Blending with LDPE
Blended with LDPE in varying ratios to balance LLDPE's strength with LDPE's clarity and processability for general-purpose film.
Rotational Moulding
Powder or pellet is tumbled and heated inside a rotating mould, melting and fusing against the mould wall to form a seamless hollow part.
LLDPE against other polyethylene grades we supply
Buyers sourcing LLDPE often also need a comonomer feedstock, or a different polyethylene density grade for another part of the line. A quick reference to what else is on our regular supply list.
| Product | CAS Number | Category | Notes |
|---|---|---|---|
| Polyethylene (LLDPE) | 9002-88-4 | Linear polyethylene copolymer | The product on this page — a comonomer-modified resin combining film strength with processability. |
| Polyethylene (LDPE) | 9002-88-4 | Branched polyethylene | The more flexible, higher-clarity relative, often blended with LLDPE — see its product page. |
| Polyethylene (HDPE) | 9002-88-4 | Linear, high-density polyethylene | The rigid, high-crystallinity member of the polyethylene family — see its product page. |
| 1-Butene | 106-98-9 | C4 olefin comonomer | A common comonomer feedstock used to introduce LLDPE's short branches — see its product page. |
Exact physical constants and processing specifications are confirmed per batch on the certificate of analysis — treat the notes above as a sourcing guide, not a specification sheet, for products other than LLDPE.
Safety classification at a glance
Based on GHS classification as commonly listed for this substance. This is a summary for orientation only — always work from the current safety data sheet supplied with your specific batch.
Not classified as hazardous under GHS in solid pellet form.
Combustible; pellets and especially fine dust can support combustion once ignited.
Minimise accumulation of polymer dust/fines, which present a greater ignition risk than pellets.
Processing equipment handles the resin molten; standard hot-surface and fume-extraction precautions apply at the extruder.
Standard gloves and eye protection are sufficient for routine handling of pellets.
May emit irritant fumes if processed well above normal processing temperature or involved in a fire.
Not classified; refer to the batch MSDS for grade-specific guidance.
This product has a low hazard profile in its solid pellet form and is not classified as hazardous under GHS. The principal handling precautions concern combustible-dust accumulation from fines generated during conveying and bagging, and standard hot-surface precautions during melt processing. Full first-aid, storage, spill and PPE guidance is in the MSDS issued with every shipment, and should be read in full before this material is handled.
Keeping it on spec between delivery and use
General storage guidance for this grade. Site-specific storage rules, segregation requirements and re-test intervals should follow your own EHS procedures and the MSDS issued with your batch.
Store in a dry, ambient-temperature warehouse, out of direct sunlight and away from heat sources, since prolonged UV and heat exposure can degrade the resin's additive package and processing behaviour. Keep bags sealed to prevent moisture pickup and contamination with other resin grades. Re-check melt index and moisture content on material held past its retest date before processing.
How it ships from Indonesia
Standard packing and export terms for this product. Confirm exact figures against your order — they vary slightly by destination and quantity.
What travels with every batch
Specification is agreed before the purchase order, not discovered on arrival. Every shipment of Polyethylene (LLDPE) leaves with a documented, checkable paper trail.
Certificate of Analysis
Batch-wise assay, colour and key physical constants, issued against the agreed specification so your QC team can check it, not just file it.
Safety Data Sheet
GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade shipped.
Technical Data Sheet
Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.
Certificate of Origin
Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.
Dangerous Goods Declaration
UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.
Third-Party Inspection
Independent pre-shipment inspection and re-sampling can be arranged on request, at your cost, for buyers who require it as a matter of policy.
Frequently asked questions
What buyers most often ask our sales desk about this grade.
01What is LLDPE used for?+
02What comonomers are used to make LLDPE?+
03How is LLDPE produced?+
04What grades does Chelora Chemicals supply?+
05Is LLDPE hazardous?+
06Why has LLDPE displaced some LDPE film volume?+
07What packing options are available?+
08How long does delivery take?+
09Can I get a sample before placing a bulk order?+
10Do you supply the other polyethylene grades and comonomer feedstock as well?+
Need LLDPE on spec, on time?
Send us your required comonomer type, melt index, application and destination port. Our desk quotes most enquiries within one working day.