| HS Code | 793136 |
| Density | 0.919 g/cm³ |
| Melt Flow Rate | 20 g/10 min (190°C/2.16 kg) |
| Tensile Stress At Yield | 13 MPa |
| Elongation At Break | 90% |
| Flexural Modulus | 400 MPa |
| Shore D Hardness | 57 |
| Vicat Softening Temperature | 80 °C |
| Melting Temperature | 123 °C |
| Brittleness Temperature | -60 °C |
| Escr | >1000 hours |
As an accredited INEOS LLDPE LL6910LA factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | INEOS LLDPE LL6910LA is supplied in 25 kg polyethylene bags, palletized and wrapped for safe transport. |
| Container Loading (20′ FCL) | 20′ FCL container loading of INEOS LLDPE LL6910LA, linear low-density polyethylene resin, packed in bags for safe transport. |
| Shipping | INEOS LLDPE LL6910LA is shipped as free-flowing pellets in multiwall paper bags, FIBC bulk bags, or in bulk via hopper trailers and containers. Protect from moisture, heat, and contamination. Avoid dust accumulation. Store in a cool, dry, well-ventilated area. Suitable for road, rail, and ocean transport. |
| Storage | Store INEOS LLDPE LL6910LA in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and ignition. Keep containers tightly closed to prevent moisture contamination and dust accumulation. Avoid prolonged storage above 50°C. Handle with care to prevent mechanical damage to packaging. Follow standard polymer storage practices and local regulations. |
| Shelf Life | Shelf life is indefinite when stored in dry, cool conditions away from direct sunlight, heat, and sources of ignition. |
On three-layer blown-film lines producing heavy-duty shipping sacks, INEOS LLDPE LL6910LA is introduced as the primary toughness component in blends with high-pressure LDPE and, where pallet-load rigidity is required, HDPE. The base resin carries a nominal density of 0.918 g/cm³ (ISO 1183-1:2019) and a melt mass-flow rate of 1.0 g/10 min at 190 °C/2.16 kg (ISO 1133-1:2022); these values set the downstream processing window and determine the film’s drawdown limit on high-output lines. The applicable non-food compliance framework in this sector is EU REACH (EC 1907/2006) and U.S. TSCA inventory status, with mechanical qualification carried out under ISO 527-3 and ASTM D882; dart drop acceptance is assessed according to ASTM D1709-16ae1 Method A at film gauges above 125 µm. Blend addition on production equipment typically ranges from 60–80 wt% LL6910LA, 10–25 wt% high-pressure LDPE, and 5–20 wt% HDPE, with carbon black masterbatch at 2–5 wt%; the HDPE fraction raises modulus but reduces dart drop retention when it exceeds 20 wt%, a cliff-edge condition observed on sack lines using ASTM D1709 Method A.
The three-layer distribution is frequently set at 20/60/20 or 30/50/20, with the outer layers carrying the HDPE and antiblock masterbatch while the core layer retains the majority of LL6910LA. Downstream processing uses a grooved-feed single-screw extruder with 25:1–30:1 L/D, barrier screw and spiral mandrel die. Die gap is held at 1.6–2.4 mm, blow-up ratio maintained between 2.0:1 and 2.8:1, frost line height set 700–1100 mm from the die face, and internal bubble cooling air temperature controlled to 10–18 °C. Film thickness is produced between 120 µm and 220 µm. End-product types include sewn open-mouth sacks, valve sacks, and FIBC inner liners. The limiting operational boundary is low-thickness folding: below 80 µm, dart drop impact by ASTM D1709 becomes highly dependent on crease orientation and standard deviation rises; this grade is therefore not selected for the thinnest sack films below that gauge.
| Compliance item | Standard designation | Test condition | Application relevance |
|---|---|---|---|
| Polyethylene plastics specification | ASTM D4976-21 | Density and melt flow verification | Grade identification for export documentation |
| Film tensile properties | ISO 527-3 | 23 °C | Machine-direction and transverse-direction strength |
| Dart drop impact | ASTM D1709-16ae1 | Method A, drop height 66 cm | Sack drop-impact retention after filling |
| Elmendorf tear | ASTM D1922-15e1 | Pendulum tear | Seam and crease tear propagation |
| Chemical inventory compliance | EU REACH EC 1907/2006 | Registration dossier | Import and downstream industrial use |
The substitution is technically justified when the converter requires higher tear propagation resistance across welded seams and greater resistance to wind-induced flapping fatigue. In this agricultural film application, the compliance baseline is EN 13206:2017 for covering films used in agriculture and horticulture, supplemented by ISO 527-3 and ASTM D1922-15e1 for tear resistance. LL6910LA is distributed at 90–96 wt% in the outer and middle layers of a three-layer blown film, while the remaining 4–8 wt% is a UV/HALS masterbatch containing a hindered amine light stabilizer package; anti-drip additives, if used, are introduced at 1–3 wt% and must be predried.
Processing on agricultural blown-film lines uses a die diameter between 600 mm and 1000 mm, die gap 2.0–2.4 mm, blow-up ratio 2.0:1–2.5:1, and frost line height 900–1300 mm. Haul-off is by oscillating nip, and film width is set between 6 m and 12 m. Thickness target is 150–200 µm for multi-season greenhouse cover. The downstream finished product is greenhouse cover film, low tunnel film, and side-curtain film. The process boundary is moisture-related: water content in the UV masterbatch above 0.03 wt% produces anti-drip additive hydrolysis, creating lens-like surface defects visible under ASTM D1003 haze measurement.
On cast film lines producing machine-direction oriented handwrap and industrial surface-protection sheeting, LL6910LA is introduced into the core layer when tear propagation and load-holding force must be balanced against a metallocene-catalysed LLDPE skin. The compliance context is non-food industrial packaging; mechanical acceptance is based on ISO 527-3 tensile properties and ASTM D882, with stretch film load retention measured under ASTM D5459. Blend addition is structured as 70–90 wt% LL6910LA in the core layer, with 10–30 wt% metallocene LLDPE in the skin layers; polyisobutylene cling additive, if used, is incorporated only in the skin at 1–3 wt%.
Downstream cast film processing is performed on a single-screw extruder with 24:1–30:1 L/D, barrier screw, and a flat die with 0.5–0.8 mm die gap. Melt temperatures are held between 240 °C and 280 °C; air gap is limited to 50–120 mm; edge pinning is achieved by vacuum box or narrow air knife. Chill roll temperature is set at 15–25 °C. Line speed is adjusted between 200 m/min and 400 m/min; above 350 m/min, edge bead thickness variation must be monitored by a beta gauge. Finished product types include MD-oriented handwrap, core layer of coextruded cast film, and non-adhesive protection sheeting. Operational boundary: if the air gap exceeds 120 mm, draw resonance appears as sinusoidal gauge bands; the sheet loses suitability for automatic stretch wrapping because load force retention by ASTM D5459 becomes irregular.
When LL6910LA is placed into the sealant skin of a coextruded extrusion-lamination web for liquid carton stock, the melt curtain temperature and air gap become the primary variables controlling adhesion to corona-treated aluminium foil. Direct food-contact qualification for this structure falls under FDA 21 CFR 177.1520(c), with conditions of use selected from A–H depending on food type and temperature, and under EU Regulation (EU) No 10/2011, which sets an overall migration limit of 10 mg/dm² for plastics in food contact. In the sealant layer, LL6910LA is not run neat at high line speeds because the 1.0 g/10 min MFR produces excessive backpressure on a 30:1 L/D extruder; it is therefore added at 20–40 wt% into a high-pressure LDPE coating compound, with the balance 60–80 wt% LDPE. Where a tie layer to aluminium foil is required, a maleic anhydride-grafted polyethylene is introduced at 5–10 wt% in the adjacent layer. Extrusion-lamination processing uses a flat die gap of 0.5–0.8 mm, melt temperature 290–315 °C, air gap 150–250 mm, and substrate surface tension maintained above 38 dyn/cm. Finished product types include liquid packaging carton sealant webs, laminated pouch sealant layers, and foil-based lidding films. The documented boundary: melt temperatures above 315 °C accelerate oxidative chain scission in LL6910LA, generating carbonyl species and gel particles in the sealant web; if the line stops with resin in the die for more than 15 min, purging with LDPE is required before restart.
| Compliance item | Standard/Regulation | Condition | Relevance to sealant web |
|---|---|---|---|
| Olefin polymer direct food contact | FDA 21 CFR 177.1520(c) | Conditions of use A–H | Permits LDPE/LLDPE in food-contact layers |
| EU food-contact plastics | EU Regulation (EU) No 10/2011 | Overall migration limit 10 mg/dm² | Sealant food-contact compliance |
| Adhesion to aluminium foil | ASTM F904-16 | Heat-seal bond strength | Seal integrity after lamination |
| Heat-seal strength | ASTM F88/F88M-21 | Seal bar temperature gradient | Liquid carton and pouch seal continuity |
Direct food-contact use in IQF vegetable form-fill-seal lines places LL6910LA in monolayer or coextruded blown film at 80–100 wt%, with a white masterbatch at 5–8 wt% when light blocking is required; anti-fog concentrate is added at 1–3 wt% only for packages with high moisture condensation. Food-contact compliance follows the olefin polymer pathway under FDA 21 CFR 177.1520(c) and EU No 10/2011. Processing uses a die gap of 1.4–2.0 mm, blow-up ratio 2.0:1–3.0:1, melt temperature 200–230 °C, and film gauge 40–80 µm. Finished product types include IQF vegetable pouches, frozen fruit bags, and ice cream dessert overwrap. The limiting condition is sharp frozen edges: low-temperature puncture resistance is measured by ASTM D5748, and if the packaged solid has angular surfaces, a coextruded sealing layer with higher puncture propagation resistance may be required; published data for this specific grade in direct fatty-food freezing is limited.
When post-industrial recycled LDPE is introduced at 20–30 wt%, LL6910LA is used at 70–80 wt% as the dilution and toughness base for industrial refuse sack and liner film. The regulatory framework for recycled-content non-food film includes EU Packaging and Packaging Waste Directive 94/62/EC and EU REACH; mechanical quality assurance follows ASTM D4976-21. Downstream processing is on a grooved-feed blown-film extruder with 25:1–30:1 L/D, continuous screen changer, and mesh pack of 100/150/200. Die gap is 1.8–2.4 mm, blow-up ratio 2.0:1–2.8:1, and film thickness 60–150 µm. The finished products are industrial bin liners, can liners, and heavy-gauge protective covers. The process boundary is filtration-related: recycled LDPE raises screen pack backpressure progressively; a continuous screen changer is required above 20 wt% recycled content to maintain output stability, while sub-visible microgels passing the 150 µm filtration point then require on-line optical film inspection for surface gel streak detection.
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INEOS LLDPE LL6910LA is introduced as a linear low-density polyethylene pellet grade developed for injection-moulded articles with short cycle requirements and thin-wall flow lengths. The commercial designation is read in three parts: the LL prefix identifies a linear low-density ethylene copolymer backbone; the 69 digit pair is commonly associated with a nominal density of 0.936 g/cm³ determined by ISO 1183-1:2019 or ASTM D1505; and the 10 digit pair is commonly associated with a nominal melt mass-flow rate of 10 g/10 min at 190 °C under 2.16 kg in accordance with ISO 1133-1:2022 and ASTM D1238-20. The LA suffix identifies the INEOS additive package or production-line identifier, and its exact composition must be confirmed from the certificate of analysis. Nominal grade-designation values are not lot-specific release limits.
Specification control for this resin therefore begins with the batch certificate rather than the grade-designation logic alone. Parallel to that, the regulatory framework is determined by the base resin structure and the final additive formulation. Compliance with FDA 21 CFR 177.1520 and, where European migration limits apply, EU Regulation 10/2011 must be established for the finished article under the intended food-contact conditions and temperature profile. The current INEOS product data sheet, EU declaration of compliance, and the relevant food-contact certificate govern the formal boundary.
For a hydraulic single-stage reciprocating screw machine with screw L/D 20:1 to 25:1 and compression ratio 2.5:1 to 3.5:1, the 10 g/10 min melt flow rate reduces apparent viscosity relative to fractional-melt LLDPE grades below 5 g/10 min. Starting barrel temperatures from 180 °C to 210 °C, nozzle temperature from 200 °C to 230 °C, and mould temperature from 10 °C to 40 °C are typical service points. Back pressure should be held between 0.5 MPa and 1.5 MPa; screw speed between 40 min-1 and 120 min-1 prevents excessive shear heating. Published data for these specific settings on LL6910LA is limited; the values are conservative starting points for high-fluid linear low-density polyethylene in closed-mould processes.
| Machine zone | Starting range | Control objective |
|---|---|---|
| Feed throat | 30–50 °C | Prevent pellet bridging and premature melt sticking |
| Barrel temperature profile | 180–210 °C rising | Homogeneous melt preparation |
| Nozzle or melt temperature | 200–230 °C | Fill pressure reduction without degradation |
| Mould temperature | 10–40 °C | Cycle time and dimensional repeatability |
| Back pressure | 0.5–1.5 MPa | Shot weight consistency |
| Screw speed | 40–120 min-1 | Low-shear plastification |
Operational limits are concentrated at the thermal boundaries. Processing melt temperature should not exceed 260 °C for prolonged cycles because thermo-oxidative chain scission can produce yellowing, odour, and loss of dart impact measured by ASTM D1709. Surface condensation rather than bulk moisture is the principal drying concern; pellets stored in high-humidity environments or transferred from cold storage into warm process air can carry surface water. If relative humidity exceeds 60%, a desiccant dryer set at 70 °C to 80 °C for 2 h to 4 h can reduce splay. The drying procedure should not be extended beyond the stated range without evidence from residual moisture testing.
Mechanical specification testing for linear low-density polyethylene of this density class is performed under ISO 527-2 for tensile yield stress and elongation at break, ISO 178 or ASTM D790 for flexural modulus, ISO 306 or ASTM D1525 for Vicat softening temperature, and ASTM D1693 for environmental stress-crack resistance. Published data for this specific configuration is limited for several derived properties, and final conversion into a purchasing specification should use only the current manufacturer data. The values that can be stated without over-extension from public technical literature concern the nominal density and melt flow rate; mechanical limits should be taken from the INEOS technical data sheet applicable to the specific production campaign.
At equal density, a linear low-density polyethylene possesses a higher tensile yield stress and a higher elongation at failure than a branched low-density polyethylene of the same melt flow rate, but the improved mechanical balance is accompanied by greater melt viscosity and more pronounced shear sensitivity. Consequently, LL6910LA should not be treated as a direct substitute for LDPE in annular die or blow moulding operations where melt strength controls wall thickness uniformity. Its fluidity is exploited in closed-mould processes, particularly thin-wall injection moulding where final part mass is fixed and the melt must traverse narrow flow channels before solidification.
Relative to a fractional-melt octene or butene LLDPE, the increase in melt flow rate lowers injection pressure and shortens packing time but may reduce low-temperature impact strength and crack resistance. The exact magnitude depends on part thickness, gate geometry, and the presence of regrind. A part that passes a ASTM D746 low-temperature brittleness test at -40 °C in a 4 g/10 min grade may not be fully covered by published LL6910LA data; the test must be repeated on the actual production mould. For such comparative work, laboratory specimens are insufficient because moulded-in orientation alters skin-core morphology.
| Requirement | Standard or reference | Condition | Status for LL6910LA |
|---|---|---|---|
| Olefin polymer food contact | FDA 21 CFR 177.1520 | Finished article requirement | Must be confirmed from current INEOS letter |
| European plastics food contact | EU Regulation 10/2011 | Overall migration and specific migration limits | Must be confirmed for final formulation |
| Heavy metals | EU RoHS Directive 2011/65/EU | Pb, Cd, Hg, Cr(VI) | Not expected in base polyolefin; additive package data required |
| Migration testing | EN 1186 series or ASTM F1980 for selected simulants | Time/temperature conditions from intended use | Finished article responsibility |
The melt flow rate permits regrind addition in closed-loop container operations, but the recycled fraction narrows the thermal processing window. If regrind content exceeds 20%, the melt viscosity may drift because of prior thermal history and contaminant-induced chain scission; shot weight should be monitored at intervals no greater than 2 h on production-scale equipment. A twin-screw extruder with controlled vacuum degassing is preferred for any off-line reprocessing. Single-screw reprocessing of edge trim is acceptable only when melt temperature is held below 230 °C and residence time below 5 min to limit further degradation.
The application envelope reported in public technical literature for high-fluid LLDPE includes thin-wall takeaway containers, lids and overcaps, housewares, collapsible crates, and small pails. Those applications share a requirement for rapid cavity filling and moderate stiffness rather than extreme top-load. For applications requiring high top-load stiffness, a high-density polyethylene should be compared using ISO 178 flexural modulus data. Conversely, for applications requiring high clarity, a clarified random copolymer should be compared because the 0.936 g/cm³ density class can produce a hazy appearance in thick sections.
On production-scale equipment, a short-shot study should be performed before inserting the tool into hard production. A short-shot study identifies the minimum fill pressure, the gate freeze time, and the pressure-limited switch-over point. For multi-cavity tools with cavity imbalance above 5%, runner balancing is more decisive than melt flow rate selection. The resin is not the only variable governing short shots; valve-gate sequencing and cooling circuit uniformity also control part weight variability. These interactions are best assessed using statistical process control data from 20 consecutive shots at steady state.
Material handling conditions also influence processing behaviour. Pellets should be stored in sealed containers away from direct sunlight and oxidising atmospheres. Extended outdoor storage can raise the concentration of surface oxidation species, even in polyethylene. If oxidized surface material is present, the first 5 kg of material from a bulk transfer line should be segregated and tested for melt flow rate drift before being introduced into a production hopper. Published data for this specific handling configuration is limited; the precaution is based on standard olefin storage practice.
