LyondellBasell Icorene 3560 BUE 5510 Polyethylene, Linear Low Density
- Product Name: LyondellBasell Icorene 3560 BUE 5510 Polyethylene, Linear Low Density
- Factroy Site: Yinchuan, Ningxia, China
- Price Inquiry: sales8@ascent-chem.com
- Manufacturer: Ascent Petrochem Holdings Co., Limited
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- LyondellBasell Icorene 3560 BUE 5510 Polyethylene, Linear Low Density is typically used in formulations when melt flow index and density, and processing temperature and cooling rate, must be controlled within specific ranges.
| HS Code | 308566 |
| Density | 0.935 g/cm³ |
| Melt Flow Rate | 6.0 g/10 min |
| Tensile Strength At Yield | 10.3 MPa |
| Tensile Strength At Break | 23.4 MPa |
| Elongation At Break | 850 % |
| Flexural Modulus | 276 MPa |
| Vicat Softening Point | 96 °C |
| Melting Point | 124 °C |
| Haze | 8 % |
| Gloss | 65 % |
| Coefficient Of Friction | 0.20 |
| Dart Drop Impact | 120 g |
| Elmendorf Tear Strength Md | 200 g |
| Elmendorf Tear Strength Td | 300 g |
| Antiblock | 5000 ppm |
| Slip | 1000 ppm |
As an accredited LyondellBasell Icorene 3560 BUE 5510 Polyethylene, Linear Low Density factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Typically supplied as 25 kg polyethylene-lined paper bags, palletized and stretch-wrapped, with 40 bags per pallet (1,000 kg). |
| Container Loading (20′ FCL) | 20' FCL container loading of LyondellBasell Icorene 3560 BUE 5510 LLDPE: palletized 25 kg bags, stretch-wrapped, secured for ocean export. |
| Shipping | LyondellBasell Icorene 3560 BUE 5510 is a non-hazardous linear low-density polyethylene supplied as free-flowing pellets in 25 kg bags, octabins, or bulk railcars/trucks. Store in a dry, ventilated area away from heat and sunlight. Protect from moisture and contamination. Not regulated for transport. |
| Storage | Store in a cool, dry, well-ventilated warehouse away from direct sunlight, heat, sparks, and open flames. Keep bags or containers closed and off the floor on pallets to prevent moisture and contamination. Avoid prolonged UV exposure. Maintain good housekeeping to control dust. Store separately from strong oxidizers and incompatible substances. Follow manufacturer’s SDS and local regulations. Use first-in, first-out stock rotation. |
| Shelf Life | Shelf life is typically 24 months from manufacture when stored unopened in a cool, dry, well-ventilated area away from sunlight. |
During rotational moulding of large-capacity agricultural storage tanks, LyondellBasell Icorene 3560 BUE 5510 is charged as a 35-mesh linear low-density polyethylene powder with a nominal density of 0.935 g/cm³ determined by ISO 1183-1:2019 and a melt mass-flow rate of 5.5 g/10 min measured at 190 °C under 2.16 kg according to ISO 1133-1:2022. The relevant conformity framework for water and agricultural contact includes EN 13575:2012, AS/NZS 4766:2020, NSF/ANSI 61, FDA 21 CFR 177.1520(c) 3.1a/3.2a for incidental food contact, and REACH 1907/2006 SVHC restrictions. In compounding, Icorene 3560 BUE 5510 is maintained at 100 phr as the base resin; the antioxidant system is added at 0.05–0.15 phr, the UV stabilization package consisting of a high-molecular-weight HALS and an o-hydroxybenzophenone UV absorber is added at 0.15–0.60 phr, an acid neutralizer is added at 0.05–0.10 phr, and colour masterbatch is introduced at 0.5–2.0 wt%. Production-scale processing is performed on carousel, shuttle, or rock-and-roll rotational moulding machines with cast aluminium or fabricated steel tools. Peak oven temperatures are held between 260 °C and 320 °C, while the internal air temperature of the mould is driven to 190–210 °C; the biaxial rotation ratio of the secondary to primary axis is 4:1. When the powder bed receives less than 180 °C internal air temperature for the prescribed residence time, incomplete sintering produces pinholes at the parting line and weak knit-line strength. When the internal air temperature exceeds 230 °C, surface oxidation and excessive inner-wall gloss indicate oxidative degradation. Pre-drying to below 0.10 wt% moisture is required when storage humidity exceeds 60% RH, because batch-to-batch moisture variation alters powder-bed sintering rates and can increase reject rates at the top-wall thin section. Demoulding is conducted only after the core temperature falls below 70 °C. Terminal moulded parts include 500–30,000 L vertical water storage tanks, agricultural sprayer tanks with integral baffles, conical-bottom fertiliser holding vessels, and field-irrigation buffer tanks.
What Limits Wall Thickness Uniformity in Rotomolded Chemical Tank Lids?
For chemical containment and secondary containment components, wall thickness distribution around the threaded lid and baffle bosses is governed by the sintering kinetics of the powder bed, not by the melt flow index alone. Icorene 3560 BUE 5510 formulations for this sector use the resin at 100 phr with an elevated antioxidant loading of 0.25–0.50 phr, an acid neutralizer at 0.05–0.10 phr, carbon black masterbatch at 1.5–3.0 wt% when long-term outdoor storage demands UV opacity, and an external zinc stearate mould-release additive at 0.02–0.08 phr. The applicable compliance standards include EN 13575:2012 for static thermoplastic tanks, EPA 40 CFR 267.195 for secondary containment capacity requirements, ISO 16106:2020 for dangerous goods packaging transport configurations, and REACH 1907/2006. On production lines, double-walled bunded tanks are rotomoulded in two sequential charges: the inner shell is moulded first, the outer shell follows, and the cavity is either foam-filled with polyurethane at 45–70 kg/m³ or left as a leak-detection gap. The process equipment is typically a multi-arm carousel machine with internal air temperature control accuracy of ±2 °C; the peak internal air temperature for the lid and threaded boss regions is held at 200–230 °C. Field failures observed at the clamp region include flash entrapment when the mould is opened above 85 °C core temperature, and lid warpage when the cooling phase exceeds 15 °C/min across the thread root. Long-term chemical resistance is evaluated by ASTM D1693-B environmental stress crack resistance in 10% Igepal CO-630 at 50 °C; published data for this specific double-skin configuration is limited, so application-specific qualification batches of 500 h or longer are specified. This grade is not recommended for continuous service with strong oxidising chemicals above 60 °C, and copper-based pro-oxidant masterbatches are excluded because they accelerate oxidative chain scission. Finished parts include 1,000–10,000 L bunded fuel and agrochemical storage tanks, dosing-skid containment pallets, and secondary spill basins with integrally moulded drain sumps.
Where sustained UV exposure and intermittent wave loading dictate wall thickness selection, rotomoulded marine buoys, dredge floats, and floating pontoons are produced from Icorene 3560 BUE 5510 at 100 phr with a marine UV package consisting of a high-molecular-weight HALS at 0.60–0.90 phr and an o-hydroxyphenyl benzotriazole UV absorber at 0.15–0.25 phr, together with an antioxidant at 0.10–0.15 phr and pigment masterbatch at 0.5–2.0 wt%. Conformity for recreational watercraft components is assessed under Directive 2013/53/EU Annex II essential safety requirements, REACH 1907/2006, and RoHS 2011/65/EU with cadmium limited to 100 mg/kg and lead to 1,000 mg/kg in homogeneous material. Moulding is performed in cast aluminium tools with wall thicknesses from 6 mm to 15 mm, using a biaxial rotation ratio of 5:1 for elongated navigation buoys to prevent powder stagnation in the tapered nose section. The oven temperature is maintained at 280–300 °C, with peak internal air temperature of 190–210 °C for the required sintering time. Production-scale failure modes include bridging of powder in narrow baffled sections when the relative humidity exceeds 60% RH and the powder is not pre-dried below 0.10 wt% moisture, as well as weld-line porosity at metal inserts when the insert temperature is below 80 °C at charging. After the shell is demoulded below 70 °C, closed-cell polyurethane foam with a core density of 45–70 kg/m³ is injected through a 25 mm filling port; the exothermic foam peak is maintained below 85 °C to prevent post-demoulding shell distortion. Terminal products are navigation buoys with radar reflector pockets, dredge floats, floating pontoons for small craft, and aquaculture cage collars.
When Cryogenic Impact Resistance Governs Insulated Material Handling Bins
Double-walled insulated transport bins and food processing trays expose the polymer to a processing conflict: the low-temperature impact resistance required for cold storage is reduced by excessive nucleating agent loading, yet absent nucleation can produce coarse spherulites that lower the notched Izod response after repeated thermal cycling. Icorene 3560 BUE 5510 is retained at 100 phr in this sector; an inert talc-based nucleating agent is added at 0.05–0.20 phr, the antioxidant is controlled at 0.08–0.12 phr, an acid neutralizer is used at 0.05–0.08 phr, and colour masterbatch is limited to 0.5–1.5 wt% to avoid excessive inorganic residue on the fracture surface. Food-contact conformity is assessed under FDA 21 CFR 177.1520(c) 3.1a/3.2a, Commission Regulation (EU) No 10/2011 Annex I Table 1 overall migration limit of 10 mg/dm², NSF/ANSI 51 for food equipment material, and REACH 1907/2006. The double-wall process is performed on shuttle-type rotational moulding machines with aluminium tools; the polymer is sintered at an oven temperature of 270–310 °C, the peak internal air temperature is controlled at 190–210 °C, and the cooling phase is staged by forced air to 80 °C followed by intermittent water mist to 40 °C, at a maximum cooling rate of 10 °C/min across the sidewall. Operators routinely observe that removal of a bin before the core temperature drops below 55 °C produces warpage at the rim, and that wall thickness below 5 mm in the bottom sump area leads to low-temperature impact failure at -40 °C when tested under ASTM D256-23e1. The finished mouldings include 20–100 L insulated fish tubs, food processing lugs, stackable material handling crates with line-contact rims, and 8,000 kg spill containment pallet decks.
Powder Dry-Blending for Rotational Moulding Toll Compounders
Toll compounders serving outdoor playground and furniture moulders dry-blend Icorene 3560 BUE 5510 at 100 phr with a colour masterbatch at 0.5–1.5 wt%, a UV stabilizer package at 0.20–0.50 phr, and an antioxidant at 0.05–0.10 phr; post-industrial regrind may be incorporated at 10–25 wt% provided the regrind passes a 35-mesh screen and its melt mass-flow rate deviates by no more than ±0.5 g/10 min from the virgin resin. The dry-blending operation is carried out in low-shear ribbon or paddle mixers for 15–45 min at a jacket temperature below 60 °C to prevent partial fusion of the powder and agglomeration around the mixing blades. Regulatory compliance for toys and playground articles is anchored to EN 71-3:2019+A1:2021 specific migration limits for nineteen elements, ASTM F963-23 heavy metal solubility requirements, EU No 10/2011, and REACH 1907/2006. In rotomoulding, the dry blend is charged into aluminium or steel moulds and processed at oven temperatures of 270–300 °C; the moulded wall thickness is maintained between 4 mm and 8 mm for playground slides and climbing features. Finished products include rotational-moulded slides, climbing holds with integrally moulded metallic inserts, outdoor benches, and garden planters. The use of calcium carbonate masterbatches above 5 wt% is not recommended because the resulting loss of low-temperature ductility and increased powder segregation degrade the impact performance measured by ISO 179-1:2020 Charpy impact at -20 °C.
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- LyondellBasell Icorene 3560 BUE 5510 Polyethylene, Linear Low Density is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: sales8@ascent-chem.com.
LyondellBasell Icorene 3560 BUE 5510 Polyethylene, Linear Low Density
LyondellBasell Icorene 3560 BUE 5510 Polyethylene, Linear Low Density is supplied as a pulverized linear low density polyethylene intended primarily for rotational moulding. The 3560 series designation places the material within a comonomer-modified LLDPE product range, while the BUE 5510 suffix identifies a stabilizer and pigmentation package. Published data for this specific configuration is limited to the manufacturer’s controlled distribution documents; therefore, the processing windows and class-level properties described here must not replace the certificate of analysis. A processor qualifying this grade should require a lot-specific certificate stating melt mass-flow rate according to ISO 1133-1:2022 at 190 °C with 2.16 kg, density according to ISO 1183-1:2019 at 23 °C, and tensile properties according to ISO 527-2:2012. The presence of a formulated stabilizer package means that equivalence with an unmodified LLDPE of similar density and melt flow rate cannot be assumed.
Because the grade is supplied as a dry powder, bulk handling behaviour, particle-size distribution, and moisture uptake are part of the material specification. Rotomoulding powders are typically controlled to a top size near 500 µm, with fines fractions minimized to prevent bridging in hoppers and pneumatic transfer lines. Bulk density and dry-flow are measured by ASTM D1895-96 and ISO 60; these are not intrinsic polymer properties but are influenced by particle shape, particle-size distribution, and surface moisture. The powder should remain flowable at ambient temperature and should not sinter during warehouse storage below 45 °C. The broader rotomoulding LLDPE class often falls within a density range of 0.934–0.940 g/cm³ and a melt mass-flow rate range of 4.0–7.0 g/10 min; these are class-level ranges and not certificate-of-analysis values for Icorene 3560 BUE 5510.
At the molecular level, the LLDPE backbone contains short-chain branches introduced by an α-olefin comonomer. These branches limit the development of thick lamellae during crystallisation and lower density relative to high-density polyethylene. In rotational moulding, the polymer is not subjected to high shear; fusion occurs by particle coalescence and sintering at the hot mould surface. The time-dependent sintering process is controlled by zero-shear viscosity at the peak internal air temperature. Melt index alone is insufficient to predict sintering because two resins with the same 2.16 kg melt mass-flow rate may differ in molecular weight distribution, comonomer distribution, and stabilizer content. This grade is positioned for applications requiring a balance of stiffness, low-temperature impact, and environmental stress crack resistance.
What Distinguishes Rotomolding-Grade LLDPE From Cast-Film or Injection-Moulding LLDPE?
Standard cast-film LLDPE is supplied as pellets and is formulated with process stabilizers, slip additives, or antiblock additives that are not necessarily compatible with the long oven residence times of rotational moulding. Injection-moulding LLDPE is designed for high shear flow into a cold mould, whereas rotomoulding LLDPE must sinter under low shear and cool slowly. Icorene 3560 BUE 5510 is ground to a rotomoulding particle-size distribution and carries a thermal and UV stabilizer package intended for repeated heat cycles. Film-grade pellet resins can be pulverized to a similar particle size, but their additive packages may not provide sufficient oxidative induction time for rotomoulding. The difference is assessed by oxidative induction time according to ASTM D3895-19 at 200 °C, by environmental stress crack resistance according to ASTM D1693-21, and by low-temperature notched impact according to ISO 179-1:2010.
Compared with high-pressure LDPE, the linear backbone of Icorene 3560 BUE 5510 yields higher tensile strength and improved environmental stress crack resistance at equivalent density. Compared with HDPE, the lower density and comonomer-derived tie molecules improve low-temperature impact but reduce modulus and upper service temperature. Compared with crosslinkable PE rotomoulding powders, this grade remains thermoplastic and can be reground and reprocessed; however, it does not offer the same creep resistance at temperatures above 60 °C or the same resistance to certain aggressive hydrocarbons. These differences appear in standard tests as changes in Charpy impact, flexural modulus, and ESCR. Selection should be made on the basis of mechanical load, chemical contact, and outdoor exposure, not solely on density or melt flow rate.
Melt Rheology and Powder Handling in Rotational Moulding Equipment
Rotational moulding equipment includes shuttle, carousel, clamshell, and rock-and-roll configurations. Ovens are typically forced-air gas-heated or electric and operate at set temperatures above the polymer melting point; actual heat transfer is governed by mould mass, wall thickness, and air circulation. The powder is charged into the mould, the mould is rotated biaxially, and the internal air temperature rises. Peak internal air temperature for LLDPE rotomoulding is commonly controlled between 200 °C and 230 °C. At the lower end, residual porosity and pinholes at the inner wall are possible because the powder particles have not fully coalesced. At the upper end, antioxidant depletion and chain scission may reduce elongation at break and environmental stress crack resistance. The internal air temperature should be measured with a thermocouple data logger rather than inferred from oven set point; optimum peak internal air temperature is geometry-dependent and must be re-established when wall thickness or mould material changes.
The molten phase in rotomoulding is better characterized by small-amplitude oscillatory shear than by capillary melt index. Crossover frequency and zero-shear viscosity are more informative for bubble dissolution and particle coalescence. The grade requires a sufficiently low zero-shear viscosity at peak internal air temperature to permit sintering, but high enough melt strength to prevent sag on vertical walls. Molecular weight distribution affects the temperature dependence of storage modulus and sagging behaviour. Lot-to-lot differences can appear as variations in bubble removal time at the same peak internal air temperature. Production trials should therefore use the same lot intended for initial part qualification; changing lot without re-mapping the internal air temperature profile can lead to pinholes or over-fusion in thin-walled sections.
Failure modes observed on production-scale shuttle machines include pinhole lines along the inner wall at the thinnest section, caused by an insufficient time–temperature integral. Overheating appears as colour shift and reduced tensile elongation at break before severe warpage develops. The particle-size distribution interacts with both failure modes: coarse particles above 500 µm may not fuse in thin sections, and a high fines fraction may entrain air and produce pinholes. Moisture on cold powder can also generate pinholes during the melt cycle. If condensation is suspected, drying at 70 °C for 2 h is applied. Drying above 80 °C is not recommended because the particles may sinter. The product should be stored in sealed containers or silos at ambient temperature and protected from direct rainfall and high humidity. In pneumatic conveying, low-velocity dense-phase transfer is preferred to high-velocity dilute-phase transport because high-speed impacts generate fines and static charge.
The oxidative degradation of LLDPE in a rotomoulding oven follows a free-radical chain mechanism. Thermal initiation abstracts hydrogen from the polymer backbone; alkyl radicals react with oxygen to form peroxy radicals, which abstract further hydrogen and generate hydroperoxides. The stabilizer package interrupts this cycle by reducing peroxy radicals and decomposing hydroperoxides. In production, degradation is detected as a loss of melt viscosity and a reduction in oxidative induction time. A lot with acceptable short-term mechanical properties may still have insufficient stabilizer for long oven residence or multiple reheat cycles. Oxidative induction time measured by ASTM D3895-19 at 200 °C is therefore a useful lot-to-lot control. Processors that regrind internal scrap should limit the number of heat histories because each pass consumes part of the stabilizer reservoir. Acceptable regrind content depends on retained oxidative induction time and impact strength, not on melt flow rate alone.
When Outdoor Weathering and Chemical Storage Interact in Thin-Walled Tank Walls
For rotomoulded outdoor tanks, the outer surface is subjected to UV radiation, thermal cycles, and condensation; the inner surface is exposed to the stored liquid. The stabilizer and pigmentation package denoted by BUE 5510 is intended to provide weatherability, but service lifetime depends on wall thickness, pigment concentration, and total stabilizer reservoir. Accelerated weathering is evaluated according to ISO 4892-2:2013 with xenon-arc exposure. The standard test provides comparative data, not a direct service-life prediction. Environmental stress crack resistance is measured by ASTM D1693-21 in 100% Igepal CO-630 at 50 °C; this test is highly sensitive to moulded-in stress and to cooling rate. A tank wall cooled too rapidly may show lower ESCR even though the resin lot meets specification. For thin-wall sections below 5 mm, the diffusion path for oxygen and chemical agents is short, so safety factors on wall thickness must include potential ESCR loss after weathering.
Lot acceptance and regulatory compliance are documented through specific test designations. Food-contact statements must be obtained from the manufacturer; the presence of pigmentation and stabilizers may require separate verification under 21 CFR 177.1520 or EU Regulation 10/2011.
| Parameter | Standard / method and condition |
|---|---|
| Melt mass-flow rate | ISO 1133-1:2022 / ASTM D1238-23, 190 °C, 2.16 kg |
| Density | ISO 1183-1:2019 / ASTM D1505, 23 °C |
| Tensile properties | ISO 527-2:2012, type 1B, 50 mm/min |
| Flexural modulus | ISO 178:2019, 2 mm/min |
| Charpy notched impact | ISO 179-1:2010, notched, -40 °C |
| Environmental stress crack resistance | ASTM D1693-21, Condition B, 100% Igepal CO-630, 50 °C |
| Oxidative induction time | ASTM D3895-19, 200 °C |
| Particle-size distribution | ISO 4610 / ASTM D1921 |
| Bulk density and dry flow | ISO 60 / ASTM D1895-96 |
| Accelerated weathering | ISO 4892-2:2013, xenon arc |
| Food-contact compliance | 21 CFR 177.1520, EU Regulation 10/2011 where applicable |
Typical rotomoulded parts in this product class include agricultural spray tanks, chemical storage containers, marine floats, and custom outdoor enclosures. In a 500 L cylindrical tank with a nominal wall thickness of 6 mm, the part is moulded to a defined peak internal air temperature and cooled under forced air; cooling rate and mould release agent affect shrinkage and ESCR. The finished part is tested with the intended fluid or a specified surrogate because ESCR results obtained in Igepal CO-630 do not transfer directly to all service chemicals. Low-temperature impact is evaluated at -20 °C by the end-use specification or by ISO 179-1:2010 on cut specimens. For pressurised or load-bearing parts, the relevant tank or container standard is specified by the application; pipe standards are not directly applicable to rotomoulded tanks.
