| HS Code | 651154 |
| Density | 0.922 g/cm³ |
| Melt Flow Rate | 2.2 g/10min (190°C, 2.16kg) |
| Tensile Strength At Yield | 11 MPa |
| Elongation At Break | 500% |
| Flexural Modulus | 330 MPa |
| Vicat Softening Temperature | 100°C |
| Melting Point | 122°C |
| Brittleness Temperature | -70°C |
| Shore Hardness | 55 Shore D |
| Haze | < 20% |
As an accredited SABIC LLDPE 222WJ factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | SABIC LLDPE 222WJ is supplied in 25 kg polyethylene bags, palletized and wrapped, ensuring safe handling and storage. |
| Container Loading (20′ FCL) | 20′ FCL container loading of SABIC LLDPE 222WJ ensures safe, efficient transport, maximizing space and protecting material during shipment. |
| Shipping | SABIC LLDPE 222WJ is shipped as free-flowing pellets in moisture-protective bags, packed on pallets and wrapped for container transport. Keep dry, away from direct sunlight and heat sources. Use covered trucks or containers; handle with care to prevent bag damage and contamination during transit. |
| Storage | Store SABIC LLDPE 222WJ in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and open flames. Keep packaging sealed and undamaged to prevent contamination and moisture pickup. Avoid generating dust and static; ground equipment as needed. No special storage restrictions apply under normal conditions. |
| Shelf Life | SABIC LLDPE 222WJ has indefinite shelf life when stored in dry, shaded, well-ventilated conditions away from direct sunlight and heat. |
Blown film conversion of SABIC LLDPE 222WJ for heavy-duty industrial sacks and construction liners is performed on grooved-feed extruders with screw L/D ratios of 24:1 to 30:1; the barrier screw typically incorporates a spiral Maddock mixing section to hold melt temperature variation at the die entry below ±3 °C. The resin, characterised by a nominal density of 0.922 g/cm³ (ASTM D1505) and MFR of 2.0 g/10 min (ASTM D1238-20), is formulated in high-output tubular lines at 70–80 wt% with 20–30 wt% LDPE to increase melt strength and maintain bubble symmetry at frost line heights of 5–7 die diameters. The film die gap is held at 1.8–2.2 mm, the blow-up ratio is controlled at 2.4:1–3.0:1, and melt temperature is set between 190 °C and 210 °C. Compliance is demonstrated through ASTM D1709-16a dart impact testing, ISO 527-3:2018 tensile testing, and the EU Packaging and Packaging Waste Directive 94/62/EC heavy-metal concentration limits; sacks intended for construction debris are often qualified under drop-test procedures adapted from ISO 7965-1:1993. The finished articles are 60–120 µm tubular liners, rubble sacks, and open-mouth construction bags with fold-over or hemmed tops, used in non-hazardous fill weights up to 25 kg depending on bag width and gusset design. A die gap below 1.8 mm raises melt fracture risk, while a gap above 2.2 mm reduces transverse tensile properties at blow-up ratios below 2.4:1 because machine-direction orientation is insufficient for sack load retention.
In cast machine-pallet stretch film lines, melt-web draw-down is constrained by the extensional viscosity deficit of narrow-molecular-weight LLDPE and by the onset of draw resonance. SABIC LLDPE 222WJ is introduced into the core layer at 15–25 wt%, with metallocene-catalysed LLDPE forming the balance of the core and the outer layers; the addition level is limited because concentrations above 25 wt% increase die-lip deposit formation and edge neck-in. The cast line is configured with a flat die gap of 0.5–0.8 mm, melt temperature of 240–260 °C, chill roll temperature of 15–25 °C, and vacuum box negative pressure of 15–35 mbar. At 20 wt% 222WJ, edge neck-in measured on a 2.4 m die typically increases by 20–30 mm per edge compared with a LDPE-rich formulation, and draw resonance amplitude becomes visible as web thickness oscillation above line speeds of 450–550 m/min when LDPE is omitted from the blend. Published data for the specific effect of 222WJ on cast-line draw resonance amplitude is limited; industrial line qualification therefore relies on short-duration trials with web tension and neck-in measurement at each target speed. Where the film is used for contact with primary food packaging, regulatory acceptance is framed by EU Regulation 10/2011 and FDA 21 CFR 177.1520, with overall migration testing according to the relevant food simulant. The finished products are machine-applied rotary stretch films of 12–23 µm, pre-stretched on automatic pallet wrappers to 200–250 % elongation, and slit rolls of 450–500 mm width.
Three-layer agricultural greenhouse and mulch film lines running SABIC LLDPE 222WJ allocate the resin to the outer or middle layer at 75–85 wt% of the layer formulation, with 15–25 wt% LDPE added for bubble stability. The stabiliser package for a 150 µm greenhouse cover typically comprises 0.3–0.8 wt% HALS masterbatch and 1–2 wt% anti-drip/anti-fog concentrate; exact addition is adjusted by accelerated weathering protocol under EN 13206:2017, which classifies covering films by optical and thermal performance. The blown film die gap is set at 2.0–2.4 mm, the blow-up ratio is held between 2.0:1 and 3.0:1, and the layer distribution is commonly 20/60/20 or 30/40/30. Melt temperature in the die remains between 190 °C and 210 °C, with frost line height raised to 4–6 die diameters to suppress haze formation and preserve dart impact. The resulting articles include 100–200 µm low-tunnel covers, greenhouse side sheets, and 15–30 µm mulch films; compliance with EC Regulation 1907/2006 (REACH) is maintained through substance inventory audits and migration screening for the anti-drip additive package.
Extrusion lamination lines operating with SABIC LLDPE 222WJ in the sealant web rely on the resin’s low seal initiation temperature and high hot-tack force for high-speed packaging lines. The sealant layer is either a dry blend of 60–80 wt% 222WJ with 20–40 wt% LDPE, or a coextruded two-layer melt curtain in which the food-contact surface is a pure 222WJ skin and the backing layer is LDPE to reduce neck-in and edge waviness. The extrusion coating die gap is set at 0.7–1.0 mm, melt temperature is held at 280–310 °C, and coat weight is controlled between 15 and 25 g/m²; line speed ranges from 100 to 300 m/min depending on substrate thermal resistance. Hot-tack performance is measured with ASTM F1921-18, and seal strength with ASTM F88/F88M-21; a heat-seal window of 105–140 °C is typical for the 222WJ-rich sealant on paperboard trays, with the upper end limited by board scorching and the lower end controlled by DSC-derived onset of melting. Regulatory compliance for liquid carton inner seals and sachet laminates is assessed under EU 10/2011 total migration testing in simulant OM2 for fatty contact and under FDA 21 CFR 177.1520(c) for olefin polymers. The finished product range includes paperboard tray lidding, liquid carton inner sealant webs, and three-side-seal sachet laminates with sealant thicknesses of 15–25 µm.
Compounding of polyolefin masterbatch using SABIC LLDPE 222WJ as the carrier resin is carried out on a co-rotating twin-screw extruder with L/D 40:1, distributive mixing elements, and screw speed of 400–600 rpm. The carrier resin content is 30–50 wt%, with pigment or inorganic filler at 40–60 wt% and processing wax at 5–10 wt%; barrel temperatures are set between 180 °C and 220 °C. The melt is filtered through a 100–150 µm screen pack and pelletised under strand bath cooling to 2–4 mm pellets. Compliance is maintained under REACH (EC Regulation 1907/2006) through substance registration and heavy-metal screening. The output is a pelletised colour or additive masterbatch with bulk density of 500–600 kg/m³, used at 1–5 wt% dilution in downstream PE film extrusion.
Because pallet stretch hoods are inflated as low-BUR vertical bubbles, the addition of LDPE to SABIC LLDPE 222WJ is used to maintain bubble stability when the film exceeds 80 µm. The layer formulation contains 70–85 wt% 222WJ, 10–25 wt% LDPE, and 5–10 wt% metallocene-catalysed LLDPE for puncture resistance. Die gap is maintained at 2.0–2.3 mm, blow-up ratio is set between 2.0:1 and 2.5:1, and melt temperature is held at 190–210 °C. Puncture resistance is validated under ASTM D5748-19, and load stability is evaluated according to EUMOS 40500:2011. The finished articles are gusseted tubular hoods of 80–150 µm, applied by stretch-hood machines to palletised building boards, white goods, and industrial sacks with vertical stretch ratios of 1.6:1 to 2.0:1.
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SABIC LLDPE 222WJ is a C4-copolymer linear low-density polyethylene supplied in pellet form for blown-film extrusion and, where melt strength and bubble stability permit, cast-film operations. The nominal melt flow rate is 2.0 g/10 min measured at 190 °C under 2.16 kg load according to ISO 1133-1:2022 and ASTM D1238-23a. The nominal density is 0.922 g/cm³ according to ISO 1183-1:2019 and ASTM D1505-18. The 222WJ designation places the material in the supplier's film-grade LLDPE range, with the 222 sequence indicating the 0.922 g/cm³ density target and the WJ suffix identifying a blown-film additive package. Typical conversion environments include monolayer and coextruded film for heavy-duty sacks, carrier bags, liners, collation shrink, frozen-food packaging, and industrial films requiring a controlled balance of stiffness and impact resistance. The linear backbone and short-chain branching derived from butene comonomer increase tie-molecule concentration relative to high-pressure LDPE, while the density provides higher crystallinity than lower-density C4-LLDPE grades. These structural features influence both solid-state mechanical response and melt-phase extrusion behavior.
| Property | Test method | Nominal value |
|---|---|---|
| Melt flow rate at 190 °C/2.16 kg | ISO 1133-1:2022 | 2.0 g/10 min |
| Density | ISO 1183-1:2019 | 0.922 g/cm³ |
| Comonomer type | Supplier documentation | Butene-1 |
| Physical form | Supplier documentation | Pellet |
| Additive package | Supplier documentation | Blown-film slip/antiblock package; lot-dependent |
Food-contact status for SABIC LLDPE 222WJ derives from the base olefin polymer and the specific additive package. Supplier documentation indicates that the grade meets the compositional requirements of FDA 21 CFR §177.1520(c) for olefin polymers and can be evaluated for food-contact use under the conditions of use specified in FDA 21 CFR §176.170(c), tables B through H, subject to migration limits for the finished film. European Union compliance is typically supported under Regulation (EU) No 10/2011, with the overall migration limit for plastics fixed at 10 mg/dm² of food contact surface area for the finished article. Specific migration limits for the butene-1 comonomer, slip agents, antiblocking agents, and any polymerization catalyst residues must be confirmed against the intended time-temperature exposure profile and the certificate of analysis for the batch. REACH compliance for the European market is declared under EC No 1907/2006, and the grade is not classified as a dangerous substance or mixture according to Regulation (EC) No 1272/2008. RoHS recast 2011/65/EU is applicable only to electrical and electronic equipment; however, cadmium, lead, mercury, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers are not intentionally added above homogeneous-material thresholds. Converters producing food-contact packaging must obtain the supplier's food-contact statement and verify the lot-specific additive package, because slip and antiblock additives can shift organoleptic and migration behavior in high-surface-area films.
On a production-scale monolayer blown-film line equipped with a 90 mm grooved-feed extruder, 30 L/D screw, and 250 mm die, the grade is processed with barrel temperatures profiled from approximately 160 °C in the feed zone to 210–220 °C in the adapter and die zones. Melt temperature measured at the die entry is commonly held between 190 °C and 220 °C. Die gap settings from 1.2 mm to 2.0 mm are typical; gaps below 1.0 mm raise die pressure and can reduce output stability on high-stalk configurations. Blow-up ratios between 2.0:1 and 3.5:1 are used, with low blow-up ratios increasing machine-direction orientation and high blow-up ratios improving transverse-direction tear balance. Frost-line height must be adjusted for bubble stability; excessive frost-line height on this C4-LLDPE can increase crystalline orientation and reduce dart impact in thin film. Melt temperatures above 240 °C can generate gel specks and odor from additive decomposition, particularly with long residence time or hot spots in the die head. The grade should not be purged with PVC or acetal-containing materials in a hot extrusion line because decomposition products can contaminate the die lip and increase film specks. Gauge variation on 50 µm film is typically controlled to ±5% through internal bubble pressure and cooling-air adjustment.
Published film-property profiles for 0.922 g/cm³ C4-LLDPE are thickness-dependent and lot-dependent. A converter should not use resin-density and melt-flow values alone to predict film performance; frost-line height, die gap, blow-up ratio, and cooling rate alter crystalline orientation, tear balance, and dart impact independently of resin specification. For the same resin, a film produced at high frost-line height and low blow-up ratio will show higher machine-direction tensile modulus but lower transverse-direction Elmendorf tear than a film produced at low frost-line height and high blow-up ratio. Quantitative dart impact and tear comparisons for SABIC LLDPE 222WJ at 40 µm or 50 µm gauge require line-specific data; published data for this specific configuration is limited. The supplier's technical data sheet for the grade should be used for nominal film values, and converter line trials should be conducted at two frost-line settings because the processing window for acceptable tear-impact balance is narrower than for lower-density C4-LLDPE grades.
The density difference between SABIC LLDPE 222WJ and a 0.918 g/cm³ C4-LLDPE modifies the crystalline fraction enough to produce measurable shifts in stiffness and impact. At equal gauge and orientation state, a 0.922 g/cm³ C4-LLDPE has higher secant modulus, lower dart impact, lower low-temperature toughness, and slightly lower gas permeability than a 0.918 g/cm³ grade. The higher crystallinity also increases film haze unless processing conditions are re-optimized. Tear strength is especially sensitive to comonomer type and density; butene-based LLDPE grades with higher density generally show lower tear resistance and a more directionally unbalanced tear anisotropy than lower-density butene grades or higher alpha-olefin copolymers. These differences are directional rather than fixed because orientation and thermal history can override small density differences. On high-stalk lines, the effect of frost-line height on machine-direction orientation can produce a 0.918 g/cm³ film with higher machine-direction modulus than a 0.922 g/cm³ film produced under low orientation, even though the intrinsic resin modulus of the higher-density grade is greater.
| Property direction | 222WJ | Lower-density C4-LLDPE | High-pressure LDPE | Metallocene LLDPE |
|---|---|---|---|---|
| Density | 0.922 g/cm³ | 0.918 g/cm³ | 0.920–0.925 g/cm³ | 0.918–0.923 g/cm³ |
| Secant modulus | Higher than lower-density C4-LLDPE | Lower | Moderate | Comparable at equal density |
| Dart impact | Lower than lower-density C4-LLDPE | Higher | Lower | Higher at equal density |
| Tear balance | Moderate anisotropy | Moderate anisotropy | Balanced but low | Better balance when C6/C8 comonomer used |
| Bubble stability | Moderate | Moderate | Higher | Lower |
| Melt pressure at equal output | Lower than metallocene LLDPE | Similar | Low | Higher |
Compared with high-pressure LDPE, SABIC LLDPE 222WJ has higher tensile strength and puncture resistance but lower melt elasticity and lower bubble stability. In monolayer extrusion, blending 10–20 wt% LDPE with 222WJ improves bubble stability and optical quality while reducing dart impact and tensile strength. Compared with metallocene-catalyzed LLDPE, 222WJ has broader molecular weight distribution, higher shear thinning, and lower entrance pressure at high shear rates, but lower dart impact and puncture resistance at equal gauge. In coextruded structures, 222WJ is commonly placed in the core or in tensile plies while a lower-density metallocene or LDPE skin controls sealing and optics. Users replacing a lower-density C4 grade with 222WJ should expect a measurable increase in machine-direction secant modulus and a measurable reduction in Elmendorf tear; the exact magnitude depends on die gap, frost-line height, blow-up ratio, and film gauge. The higher density also raises film yield, so nip speed must be adjusted to maintain gauge because less polymer volume is required per unit area than with a 0.918 g/cm³ resin.
Substitution of SABIC LLDPE 222WJ for conventional LDPE on a high-stalk monolayer line requires changes in die gap and bubble handling because the linear chain structure reduces melt elasticity and narrows the stable blow-up ratio range. Die gaps should be widened by 0.2–0.4 mm relative to LDPE to reduce melt fracture and lower die pressure. Die temperatures should not exceed 220 °C because the linear resin has lower melt strength than LDPE and excessive temperature further reduces melt tension. Output on the same line can increase due to lower specific energy input, but gauge control requires adjustment of nip speed because the density difference changes film yield. Unlike autoclave LDPE, 222WJ does not require prolonged melt homogenization to break long-chain branches; however, backpressure on a 30 L/D grooved-feed extruder may increase because the linear chains have higher viscosity at low shear. Published data for this specific configuration is limited, and line trials with 50 kg lots are recommended before commercial commitment. The replacement should also consider that dart impact and tear anisotropy in 222WJ respond more strongly to frost-line height than LDPE; large frost-line changes that are acceptable with LDPE may push 222WJ film outside the intended tear-impact envelope.
Pellets are supplied in 25 kg bags or bulk rail. Storage should be below 40 °C and away from direct sunlight to minimize additive blooming and oxidative degradation. Polyethylene is not hygroscopic, and pre-drying is normally unnecessary; however, if pellets are exposed to condensation or liquid water, surface moisture can produce bubble instability, die-lip buildup, and surface defects. In such cases, drying at 80 °C for 2 h is sufficient to remove surface water. Coefficient-of-friction values depend on slip additive migration; after film production, COF can decrease over 24–72 h as slip additive migrates to the film surface. Blocking force measured by ASTM D3354-15 is lot-dependent and should be evaluated after ageing. In high-speed converting lines, corona treatment to 38–42 mN/m according to ASTM D2578-23 is typical for printing and lamination, but treatment decay occurs within 30 days unless primer is applied. The grade should not be dry-blended at high levels with iron stearate-rich masterbatch because interaction with standard slip agents can elevate haze. Contamination with polypropylene or nylon in reclaim streams should be controlled because immiscible domains can produce visible gels, die-lip buildup, and reduced dart impact.
