ExxonMobil Exceed XP mLLDPE XP 6026.RA
- Product Name: ExxonMobil Exceed XP mLLDPE XP 6026.RA
- Factroy Site: Yudu County, Ganzhou, Jiangxi, China
- Price Inquiry: sales8@ascent-chem.com
- Manufacturer: Ascent Petrochem Holdings Co., Limited
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- ExxonMobil Exceed XP mLLDPE XP 6026.RA is typically used in formulations when blown film toughness, seal performance, and optical clarity and melt temperature, extruder pressure, and screw speed must be controlled within specific ranges.
| HS Code | 502462 |
| Product Name | ExxonMobil Exceed XP mLLDPE XP 6026.RA |
| Polymer Type | Metallocene Linear Low Density Polyethylene (mLLDPE) |
| Catalyst Type | Metallocene |
| Comonomer | Hexene |
| Density | 0.926 g/cm³ |
| Melt Index 190 C 2 16 Kg | 0.60 g/10 min |
| Melting Peak Temperature | 119 °C |
| Vicat Softening Temperature | 102 °C |
| Tensile Strength At Yield Md | 9.7 MPa |
| Tensile Strength At Yield Td | 8.3 MPa |
| Tensile Strength At Break Md | 47.6 MPa |
| Tensile Strength At Break Td | 41.4 MPa |
| Elongation At Break Md | 480% |
| Elongation At Break Td | 650% |
| 1 Secant Modulus Md | 190 MPa |
| 1 Secant Modulus Td | 210 MPa |
| Dart Drop Impact | 300 g |
| Elmendorf Tear Md | 220 g |
| Elmendorf Tear Td | 350 g |
| Haze | 7% |
| Gloss 45 | 75 |
| Coefficient Of Friction | 0.2 |
| Seal Initiation Temperature | 95 °C |
As an accredited ExxonMobil Exceed XP mLLDPE XP 6026.RA factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 25 kg moisture-barrier polyethylene bags, stacked on 1,000 kg pallets for secure transport and storage. |
| Container Loading (20′ FCL) | ExxonMobil Exceed XP mLLDPE XP 6026.RA loaded in a 20′ FCL container as dry, non-hazardous resin bags/pallets, ambient conditions, secure stowage. |
| Shipping | ExxonMobil Exceed XP mLLDPE XP 6026.RA is shipped as dry polymer pellets in sealed 25 kg bags or bulk containers on pallets. Protect from moisture, contamination, direct sunlight, and excessive heat. It is not regulated as dangerous goods for transport; handle according to the SDS. |
| Storage | Store ExxonMobil Exceed XP mLLDPE XP 6026.RA in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep original packaging closed to prevent moisture and contamination. Avoid prolonged high temperatures and stack securely to prevent deformation. Follow the supplier’s SDS and local regulations. |
| Shelf Life | Store cool and dry, protected from sunlight and moisture; typical shelf life is about two years under proper conditions. |
On high-speed form-fill-seal and pre-made gusseted sack lines, ExxonMobil Exceed XP 6026.RA is introduced as a toughness-modifying fraction or as the principal extrusion resin in three-layer blown film structures. The resin’s nominal density of 0.926 g/cm³ measured by ASTM D1505 and nominal melt index of 0.20 g/10 min measured by ASTM D1238 at 190 °C under 2.16 kg load place it in the high-toughness, low-flow segment of metallocene linear low-density polyethylene film grades. During heavy-duty industrial sack production, the material is blended at 20–40 wt% with high-pressure LDPE film grades having a melt index of 0.3–0.8 g/10 min in the skin layers, while the core layer may contain 75–90 wt% 6026.RA and 10–25 wt% LDPE to maintain bubble discipline. Industry compliance for non-food chemical sacks and construction-polymer packaging is aligned to European Directive 94/62/EC packaging heavy metal limits, under which the aggregate concentration of lead, cadmium, mercury, and hexavalent chromium does not exceed 100 mg/kg, and to Regulation (EC) No 1907/2006 REACH SVHC notification thresholds at or above 0.1 wt%. Downstream extrusion is performed on three-layer blown film lines with 30:1 L/D grooved-feed extruders, die diameters 250–450 mm, die gaps 2.0–2.4 mm, blow-up ratios 2.5–3.5, and frost line height set at 8–10 die diameters. Melt temperatures are held between 204 °C and 232 °C to balance bubble stability and oxidative degradation; screw back-pressure rises relative to LDPE at equivalent screw speed, which requires barrel temperature profiling and screw motor derating on smaller extruders. Tensile properties are evaluated according to ASTM D882 and ISO 527-3, dart impact according to ASTM D1709, and Elmendorf tear according to ASTM D1922. Terminal product types include 25 kg chemical sacks, fertilizer bags, construction polymer bags, and extruded heavy-duty sack liners.
What governs seal initiation and dart impact retention in frozen-food packaging films?
In frozen vegetable and IQF poultry packs, the sealant and core formulation typically contains 70–90 wt% 6026.RA, with 10–30 wt% high-pressure LDPE to moderate the high back-pressure generated by the resin’s 0.20 g/10 min melt index, together with 0.5–2.0 wt% antiblock masterbatch, 0.5–1.5 wt% slip masterbatch, and 0–15 wt% C8-LLDPE for additional low-temperature puncture absorption. Regulatory requirements for direct food contact are anchored to FDA 21 CFR 177.1520(c) for olefin polymers, to Commission Regulation (EU) No 10/2011 Annex I and II, and to GB 9685-2016 for specific national markets; overall migration under frozen-food contact conditions is limited to 10 mg/dm² using food simulant A at 10 % ethanol and food simulant D2 as applicable. Five-layer coextrusion blown film lines use die gaps 1.8–2.2 mm, blow-up ratios 2.0–2.5, frost line heights 4–7 die diameters, and melt temperatures 210–235 °C. The low melt index yields higher shear viscosity in the die, which improves bubble stability but increases the risk of melt fracture at die gaps below 1.8 mm; polymer process aid is added at 0.05–0.2 wt% when sharkskin becomes visible. Seal initiation and hot tack are measured by ASTM F88/F88M and ASTM F1921, dart impact by ASTM D1709, and tear resistance by ASTM D1922. Terminal product types include frozen vegetable pillow packs, IQF carton liners, frozen fish vacuum pouches, and frozen seafood packaging.
Where multi-season greenhouse films and low tunnel covers must retain puncture after ultraviolet stabilizer loading, Exceed XP 6026.RA is incorporated into three-layer agricultural blown film structures to raise the local tear and impact resistance of the outer weathering layer. The outer layer formulation typically comprises 10–30 wt% 6026.RA, 60–80 wt% LDPE, 5–15 wt% EVA with 14–18 % vinyl acetate, and 2–6 wt% UV stabilizer masterbatch; the core layer may use 20–40 wt% 6026.RA to increase hail resistance without substantially elevating the overall melt flow. Compliance for agricultural covers is validated by mechanical retention after artificial weathering under ISO 4892-2 and by the product framework in EN 13206:2017, which addresses thermoplastic films used in agriculture and horticulture. Processing is performed on high-output agricultural blown film lines with die diameters 350–600 mm, die gaps 2.0–2.4 mm, blow-up ratios 2.4–3.2, and melt temperatures 185–210 °C to avoid thermal decomposition of the EVA phase. Internal bubble cooling is typically employed to stabilize the frost line at higher outputs; film thickness is commonly held between 100 µm and 200 µm, with on-line gauge variation maintained within ±5 %. Terminal product types include three-layer greenhouse covers, low tunnel films, and long-duration silage clamp covers.
Sealant-web extrusion without a separate tie layer in lamination-grade blown film
Lamination converters that process blown sealant webs at line speeds above 200 m/min require consistent seal thresholds and coefficient of friction, and 6026.RA supplies the high melt strength needed to maintain web flatness while the low melt index demands tighter die lip control. A sealant layer addition of 60–100 wt% 6026.RA is combined with 0–40 wt% LDPE, 0.05–0.2 wt% polymer process aid, 0.5–1.5 wt% antiblock masterbatch, and 0.1–0.3 wt% slip masterbatch depending on the required seal initiation and hot tack. Food contact compliance is tested under EU Regulation No 10/2011 Annex I and II, FDA 21 CFR 177.1520, and GB 9685-2016; specific migration is assessed using food simulants appropriate to the final filling temperature, with total overall migration not to exceed 10 mg/dm². Downstream processing uses three-layer or five-layer blown film lines with die gaps 1.6–2.0 mm, blow-up ratios 2.0–2.8, melt temperatures 200–220 °C, and collapsing frames maintained at low film-to-metal friction; after slitting, the sealant surface is corona treated to 38–42 mN/m before adhesive lamination to BOPP or PET. Seal strength and hot tack are evaluated by ASTM F88/F88M and ASTM F1921, while optical and mechanical uniformity are monitored by ASTM D1003 and ASTM D882. Terminal product types include printed sachet laminations, snack food pouches, coffee bag sealant webs, and overwrap lamination film.
When 6026.RA enters a three-layer stretch-hood core at high blow-up ratios
Stretch-hood film extrusion at high blow-up ratios places a premium on melt strength and puncture resistance, but the resin’s 0.20 g/10 min melt index raises head pressure and limits throughput if the extruder screw is not designed for high-viscosity metallocene grades. In three-layer structures, 6026.RA is loaded at 30–60 wt% in the core, with C8-LLDPE or LDPE-rich skins making up the balance; total mLLDPE content may reach 60 wt% in films above 100 µm. Mechanical acceptance is generally governed by ISO 527-3 for tensile properties, ISO 7765-2 for instrumented puncture, and ASTM D5748 for protrusion puncture of stretch hood films. The process is run on high-output blown film lines with die diameters 300–500 mm, die gaps 2.0–2.5 mm, blow-up ratios 3.0–4.0, and melt temperatures 210–235 °C. Bubble stability can become limiting above a BUR of 3.5 if the air ring lip shear and frost line height are not synchronized; when this occurs, the frost line is adjusted and the BUR is reduced before any change to the resin fraction. Published quantitative output gain for this specific high-BUR sequence is limited, so line trials are required to establish the maximum screw speed for a given die diameter. Terminal product types include stretch hood films for pallet unitization of appliances, bagged construction materials, and heavy-gauge industrial rolls.
Bag-in-box liner films and high-integrity flexible liquid packaging
Bag-in-box liner extrusion uses 6026.RA to improve environmental stress crack resistance and flex crack resistance in films exposed to repeated filling, transport vibration, and folding. The resin is formulated in the skin layer or as a monolayer at 70–100 wt%, with high-pressure LDPE at 0–30 wt% and polymer process aid at 0.05–0.2 wt%; in multilayer constructions, a middle barrier layer of EVOH or metallized film may be introduced, with 6026.RA-rich skins providing seal and flex resistance. Food contact compliance is anchored to FDA 21 CFR 177.1520(c) for olefin polymers and to EU Regulation No 10/2011, including specific migration limits for selected food simulants at fill temperatures from 4 °C to 60 °C. Processing is carried out on blown film lines with die gaps 1.8–2.2 mm, blow-up ratios 1.8–2.4, melt temperatures 200–225 °C, and film thickness from 60 µm to 120 µm. Environmental stress crack resistance is monitored by ASTM D1693 bent strip testing in an appropriate test environment, and flex crack performance is evaluated by pinhole-flex testing such as ASTM F392. Terminal product types include bag-in-box liners for edible oil, liquid detergent, condiments, and post-mix beverage syrup.
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- ExxonMobil Exceed XP mLLDPE XP 6026.RA 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.
ExxonMobil Exceed XP mLLDPE XP 6026.RA is a metallocene-catalysed ethylene-1-hexene copolymer produced for blown-film extrusion and positioned in the low-melt-index, high-toughness segment of the Exceed XP portfolio. Supplier technical documentation gives a nominal density of 0.916 g/cm³ by ASTM D1505 and a nominal melt mass-flow rate of 0.6 g/10 min by ASTM D1238 at 190°C and 2.16 kg. The RA designation identifies a supplier-specific formulated variant of the 6026 resin; exact additive loading—slip, antiblock, polymer processing aid, or a combination—must be confirmed from the lot-specific certificate of analysis because suffix conventions are not globally uniform. The resin backbone is a linear low-density polyethylene with a comonomer distribution narrower than conventional Ziegler-Natta LLDPE, which changes extrusion rheology, seal behaviour, and film property balance simultaneously.
Because the grade is based on 1-hexene rather than 1-butene, the short-chain branch length and tie-chain population differ from commodity butene LLDPE. This architectural distinction is more relevant to film performance than the nominal density alone. The product is therefore specified where converters seek downgauging potential in abuse-resistant packaging, low-temperature puncture resistance in frozen-food structures, or improved sealing behaviour in lamination films. Published data for this specific RA configuration in every end-use is limited; comparative trials on the target blown-film line remain the controlling method for acceptance.
What melt rheology and screw-design constraints govern XP 6026.RA blown-film lines?
The resin’s narrow molecular-weight distribution and linear polyethylene backbone produce a shear viscosity that is less shear-thinning than broad-MWD Ziegler-Natta LLDPE at equivalent 0.6 g/10 min melt index. On single-screw extruders, barrel zone setpoints are commonly maintained between 175°C and 215°C, with die zones held within a ±5°C band to reduce localized low-temperature gel formation and high-temperature oxidative residues. Screw geometries with L/D 24:1 to 30:1 and compression ratios from 2.5:1 to 3.5:1 are typical; high-shear barrier screws reduce melting heterogeneity but can increase melt temperature, and the actual rise should be measured by melt pyrometry at the die exit rather than inferred from barrel setpoints.
Production-scale failure modes on narrow-MWD metallocene LLDPE include bubble instability when the frost line is positioned below 2 die diameters or above 6 die diameters, and gauge bands caused by die-lip fouling from oxidized polymer residue. Melt pressure at the breaker plate must be monitored during changeovers from broad-MWD LLDPE; a pressure rise of 10% or more without throughput change typically indicates gel accumulation on the screen pack. Because XP 6026.RA does not have the high melt strength of high-pressure LDPE, bubble support through internal air control and venturi ring adjustment is more critical than with LDPE-rich blends.
| Processing parameter | Class-typical window | Measurement or control basis |
|---|---|---|
| Melt temperature at die exit | 190°C to 230°C | Insertion melt pyrometer |
| Barrel zone setpoints | 175°C to 215°C | Multi-zone PID controllers |
| Die zone setpoint band | ±5°C | Multi-zone die controller |
| Die gap | 1.5 mm to 2.5 mm | Physical measurement at ambient die |
| Blow-up ratio | 2.0:1 to 3.0:1 | Layflat width divided by die circumference |
| Frost line height | 2 to 6 die diameters | Visual or IR pyrometer |
| Screw L/D | 24:1 to 30:1 | Extruder specification |
| Compression ratio | 2.5:1 to 3.5:1 | Screw drawing |
In coextrusion, the grade can be used in core or skin layers depending on stiffness and sealing requirements. When the resin is placed in a skin layer against a metal chill roll or collapsing frame, the additive package in the RA variant may influence metal-release behaviour and should be evaluated before line speed increases above the qualified operating window.
Across the polyethylene catalogue, XP 6026.RA is most clearly differentiated from butene-based Ziegler-Natta LLDPE through comonomer type and composition distribution. Because butene LLDPE generates shorter short-chain branches, its tie-chain population is lower at similar density, reducing impact stress transfer and low-temperature toughness. The hexene-based XP 6026.RA produces a higher fraction of load-bearing tie chains in semi-crystalline morphology. Comparative laboratory testing should be conducted with ASTM D1709 Method A for dart impact on film of matched gauge and ASTM D882 for tensile yield and ultimate properties. Film converters frequently report measurable impact advantages relative to butene LLDPE at reduced gauge, but published data for this specific RA configuration is limited and must be verified on the target line with identical die gap, blow-up ratio, and frost line conditions.
Compared with higher-MI grades in the Exceed portfolio, the 0.6 g/10 min melt index of XP 6026.RA reduces melt flow and improves bubble stability in thicker films. The trade-off is higher motor load and lower output per screw revolution, especially on shallow-channel general-purpose screws. Relative to plastomers or lower-density mLLDPE grades, the resin retains higher modulus and lower surface tack, but it is not a plastomer and should not be specified where elastomeric recovery or very low seal-initiation temperature are the primary requirements.
When slip and antiblock additives are present in the RA variant, coefficient-of-friction acceptance shifts
Slip migration in mLLDPE is slower than in conventional Ziegler-Natta LLDPE because the narrower crystallinity distribution produces higher crystallite continuity, restricting diffusion of erucamide or oleamide molecules to the film surface. As a result, coefficient of friction decays over time after winding, and immediate offline measurements do not predict packaging-line behaviour. The relevant methods are ISO 8295 or ASTM D1894. A slip-modified film may require kinetic coefficient of friction below 0.35 after 24 h aging at 23°C, but the acceptance window must be set from actual packaging machinery throughput and film path. Blocking force should be tested under ASTM D3354 when the RA additive package includes antiblock; inadequate dispersion of antiblock masterbatch appears as streaky haze bands and periodic blocking spots on surface winders.
Production-scale experience shows that the first 200 kg of film after resin changeover may carry residual slip additives from the previous layer and should be segregated from conformance samples. Because mLLDPE is sensitive to melt history, residence time above 220°C can degrade the primary slip agent and reduce migration rate. Melt temperature should be logged with an insertion thermocouple rather than inferred from a barrel setpoint. When ambient relative humidity exceeds 60% and resin is stored in cold silos, condensation control is required before pneumatic conveying because surface moisture can disturb additive dispersion and reduce film clarity.
Frequently, XP 6026.RA is specified for heavy-duty sacks, frozen-food packaging, agricultural greenhouse film, and lamination sealant webs where low-temperature puncture resistance and drop impact are the primary acceptance criteria. In three-layer coextrusion, the resin may be assigned to the core layer for toughness or to a skin layer for sealing. For abuse-resistant sacks at 75 µm to 125 µm, film properties are evaluated under ASTM D1709 for dart impact, ASTM D1922 for Elmendorf tear, ASTM F1306 for slow-rate penetration, and ASTM D882 for tensile modulus. Low-temperature durability is assessed by dart impact at -20°C after conditioning per ASTM D618; field results depend on gauge, frost line height, additive content, and the presence of recycled layers.
In agricultural film, the polymer contributes mechanical strength but is not a UV-stabilized compound. UV stabilizer masterbatch must be selected with a dosage validated by ASTM G154 or ISO 4892-2. Inadequate stabilizer loading leads to premature cracking and discoloration, but the failure mode is additive-driven rather than attributable to the base polymer architecture. In frozen-food packaging, the grade’s low-temperature impact behaviour is valuable, but seal-through-contamination performance must be validated on the actual vertical form-fill-seal line because fill heads can deposit fat or powder particles at the seal area.
Seal-initiation temperature, hot-tack strength, and seal-through-contamination limits
Polyethylene seal performance is measured by ASTM F88 for seal strength and ASTM F1921 for hot-tack. The narrow composition distribution of XP 6026.RA generally lowers seal-initiation temperature relative to butene LLDPE of similar density, but the difference is not fixed and must be confirmed on identical film structures. Seal-initiation values are influenced by sealant-layer gauge, seal bar pressure, dwell time, and quench rate. Side-by-side extrusion on the same die is therefore more informative than comparing datasheet values from separate lines.
The resin is not formulated as an ultra-low-seal initiation polymer. Applications requiring seal initiation below 85°C may be better served by a plastomer sealant layer, while XP 6026.RA typically belongs in structures where a balance of seal strength, hot tack, modulus, and puncture resistance is required. Hot-tack tests should report cooling time, seal pressure, and specimen width because hot-tack strength is rate-dependent and cannot be compared without identical test parameters.
In lamination film, XP 6026.RA can function as a sealant web where downstream filling lines demand abrasion resistance and seal integrity. The RA additive package, if slip or antiblock is incorporated, may affect surface energy and lamination bond strength; corona treatment levels should be verified by ASTM D2578 wetting tension after additive bloom has occurred. A drop in wetting tension below the qualified value indicates slip migration to the surface and may require adjustment of treatment power or a reduction in additive masterbatch letdown.
Regulatory status, storage boundaries, and purge requirements remain line-specific
Food-contact status for olefin polymers is generally covered under FDA 21 CFR 177.1520, provided the supplier’s food-contact letter confirms the specific grade and additive package. European Union compliance must be assessed under EU Regulation 10/2011, which imposes an overall migration limit of 10 mg/dm² and specific migration limits for additives and monomers. Under REACH EC 1907/2006, the polymer is exempt from registration, but monomers and additives require registration. RoHS compliance is relevant only when the film enters an electrical or electronic packaging application, where lead and cadmium limits may be specified by the downstream customer using IEC 62321 methods.
| Regulation or standard | Relevant status for XP 6026.RA | Condition |
|---|---|---|
| FDA 21 CFR 177.1520 | Olefin polymers provision; subject to density and extractable limits | Verify with supplier food-contact letter |
| EU 10/2011 | Overall migration limit 10 mg/dm² and specific migration limits for additives | Simulant selection based on food type |
| REACH EC 1907/2006 | Polymer exempt from registration; monomers and additives require registration | Safety data sheet review |
| RoHS 2011/65/EU | Applicable only if electrical/electronic packaging is specified | Lead/cadmium limits by IEC 62321 |
Storage should avoid direct sunlight and sustained temperatures above 50°C. Polyethylene does not hydrolyse, so drying is not normally required for polymer degradation control; however, condensation on cold resin at high humidity causes surface moisture and film defects. If visible moisture is present, a desiccant or hot-air hopper dryer at 60°C for 2 h to 4 h is sufficient to remove surface water. Changeover from high-viscosity HDPE to XP 6026.RA may require 8 to 10 barrel volumes of purge resin; a low-MI LLDPE purge or a commercial purge compound minimizes interfacial gels. Published data for purge efficiency in every extruder configuration is limited, and line-specific purge studies are required before production qualification.
Incompatibility concerns are primarily additive-related. Melt mixing with uncontrolled peroxide or pro-degradant additives can lower molecular weight and degrade film toughness. Contact with strong oxidizing agents, aromatic hydrocarbons, or chlorinated solvents under stress can promote environmental stress-cracking. If the package will contain surfactants or vegetable oils, environmental stress-crack resistance should be evaluated by ASTM D1693 because the resin’s ESCR ranking in aggressive wetting agents depends on processing history, additive package, and molded stress state.
