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SIBUR Holding PJSC
- Product Name: SIBUR Holding PJSC
- Factroy Site: Yudu County, Ganzhou, Jiangxi, China
- Price Inquiry: sales3@ascent-chem.com
- Manufacturer: Ascent Petrochem Holdings Co., Limited
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- SIBUR Holding PJSC is a polyolefin in pellet form, commonly used in packaging and automotive industries, where a controlled melt flow rate is required.
| HS Code | 635910 |
| Product Name | SIBUR Group petrochemical products |
| Product Manufacturer | SIBUR Holding PJSC |
| Product Industry | Petrochemicals and polymers |
| Product Type | Polyolefins, synthetic rubbers, plastics, and petrochemical intermediates |
| Primary Feedstock | Associated petroleum gas, natural gas, and oil refinery fractions |
| Main Product Family | Polypropylene, polyethylene, polystyrene, polyethylene terephthalate, and synthetic rubbers |
| Typical Applications | Packaging, automotive parts, construction materials, medical devices, textiles, and consumer goods |
| Production Sites | Tobolsk, Tomsk, Perm, Kazan, and other Russian industrial facilities |
| Quality Certifications | ISO 9001, ISO 14001, and OHSAS 18001 certified operations |
| Export Markets | Russia and more than 80 countries worldwide |
| Storage Conditions | Store in clean, dry, well-ventilated warehouses away from direct sunlight and high heat |
| Shelf Life | Generally 12 to 24 months depending on the specific product grade |
As an accredited SIBUR Holding PJSC factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | SIBUR Holding PJSC chemicals are packaged in 25 kg polyethylene bags, palletized and shrink-wrapped for safe transport. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): SIBUR Holding’s chemicals are safely stowed into a 20-foot full container load, secured for efficient transport. |
| Shipping | SIBUR Holding PJSC, Russia’s largest petrochemical producer, ships polymers and liquefied petroleum gases via rail, road, and pipelines. Exports move through Baltic and Black Sea terminals, including Ust-Luga and Novorossiysk, ensuring efficient distribution to international markets across Europe, Asia, and the Americas. |
| Storage | SIBUR Holding PJSC stores petrochemical products in sealed, corrosion-resistant tanks and silos, with temperature and pressure monitoring to maintain quality. Bulk polymers are kept in dry, ventilated warehouses, while hazardous intermediates use secondary containment and fire-suppression systems. Strict automated controls, regular inspections, and safety protocols ensure secure handling, minimizing environmental risk across all storage facilities. |
| Shelf Life | SIBUR Holding PJSC assigns product-specific shelf life, generally 12–24 months, when stored properly in original sealed packaging under recommended conditions. |
Biaxially oriented polypropylene film on a 9.5 m tenter-frame line reaches stable processing only when the cast sheet gauge downstream of the chill roll unit is held at 1.8–2.2 mm and the die lip gap is maintained within 2.4–2.8 mm. SIBUR's extrusion coating and BOPP-grade polypropylene homopolymers selected for this segment are run with a melt flow rate of 2.5–3.5 g/10 min under ISO 1133-1:2022 at 230 °C and 2.16 kg, metered through a 33:1 L/D barrier screw at 245–260 °C melt temperature. The orientation sequence imposes a machine-direction draw ratio of 4.8:1–5.2:1 with preheat roll temperatures between 145 °C and 155 °C, followed by transverse stretching at 155–170 °C in an oven divided into ten zones. A deviation of ±2 °C in the transverse stretching zones produces visible gauge bands and a film thickness tolerance outside ±2.5% measured by optical density per ISO 14782. The finished 20 μm film is characterized by haze below 1.5% determined by ASTM D1003, a dart impact strength above 0.8 J per ASTM D1709 Method A for 25 μm gauge, and a tensile modulus above 2000 MPa in the machine direction under ISO 527-3. Water vapor transmission rate is controlled below 5.5 g/m²·24 h at 38 °C and 90% relative humidity per ISO 15106-3. Food-contact compliance relies on the olefin polymer provisions of 21 CFR 177.1520 and Commission Regulation (EU) No 10/2011, with overall migration of non-volatile residues below 10 mg/dm².
| Regulatory test | Standard method | Measured value or limit |
|---|---|---|
| Haze | ASTM D1003 | ≤1.5% at 20 μm |
| Water vapor transmission rate | ISO 15106-3 | ≤5.5 g/m²·24 h at 38 °C, 90% RH |
| Total migration | EU No 10/2011 | ≤10 mg/dm² |
| Olefin polymer extractables | 21 CFR 177.1520 | compliance per specification |
What Keeps Impact Copolymer Polypropylene from Failing Cold-Temperature Drop Tests?
For automotive interior door panels and instrument panel retainer brackets molded from SIBUR impact copolymer polypropylene, the critical failure sequence is not monotonic yield but crack propagation at the weld line when cabin temperature falls to −20 °C. The injection molding specification typically sets an MFR of 12–20 g/10 min under ISO 1133-1, with an ethylene content in the dispersed rubber phase controlled at 8–12 wt% to maintain a notched Izod impact strength above 5.5 kJ/m² at −30 °C according to ISO 180/A. The same part must retain flexural modulus between 1200 MPa and 1500 MPa per ISO 178 to prevent audible rattling after assembly. Production-scale processing on a 1600 tf clamp machine uses barrel temperatures of 200–230 °C, a hot runner manifold at 230–240 °C, and injection speeds above 180 mm/s for thin-wall sections. Mold surface temperature is maintained at 30–50 °C; higher mold temperature increases gloss but extends cooling time and shifts the crystallization plateau to higher enthalpy values measured by differential scanning calorimetry under ISO 11357-3. Shrinkage anisotropy in the molded part reaches 0.9–1.2% in flow direction and 1.1–1.4% transverse to flow measured after 48 h at 23 °C under ISO 294-4, requiring gate placement and rib wall ratio below 0.6 times nominal wall to avoid sink marks. Weld-line strength at a film gate drops 15–25% compared with bulk material at 23 °C due to orientation discontinuity, so impact-modified grades are processed with sequential-valve gating where feasible.
HDPE PE100-RC Pipe Resins and the Slow Crack Growth Threshold
In pressurized water and gas distribution networks, SIBUR high-density polyethylene grades are used in PE100 and PE100-RC pipe compounds where the governing failure mode shifts from ductile overstressing to brittle slow crack growth under hoop stress. The base resin has a density of 0.950–0.958 g/cm³ measured under ISO 1183-1 and a melt flow rate of 0.2–0.35 g/10 min at 190 °C and 5 kg under ISO 1133-1. A notched pipe test according to ISO 13479 requires failure time beyond 500 h at 80 °C and 9.2 bar hydrostatic pressure for PE100-RC evaluation; the accelerated full-notch creep test under ISO 16770 can exceed 1000 h at 80 °C. A 20 °C design stress of 10 MPa over 50 years is established by the ISO 9080 regression method. Pipe extrusion on a 45:1 L/D grooved-feed extruder with a barrier screw operates at melt temperatures of 210–230 °C, with the die head set at 220–240 °C and vacuum sizing at −0.3 to −0.6 bar. Dispersion of carbon black in UV-stabilized black compounds is checked by ISO 18553, with a dispersion rating of ≤3 required to avoid crack initiation at agglomerates. Oxidative induction time for pipe compound at 200 °C should remain above 20 min under ISO 11357-6, and the compound must pass the long-term hydrostatic strength requirements of EN 12201-2.
Silica-reinforced passenger tire tread formulations require solution styrene-butadiene rubber with a vinyl content between 50% and 63%, bound styrene at 21–27%, and glass transition temperature between −25 °C and −10 °C as measured by differential scanning calorimetry under ISO 22768. SIBUR's solution styrene-butadiene rubber products are compounded with a neodymium polybutadiene rubber containing cis-1,4 content above 97%, added at 15–30 phr to improve abrasion resistance and cut growth. Mixing in a 270 L intermeshing mixer at 60–80 rpm rotor speed proceeds with a first-stage dump temperature of 150–160 °C to drive the silanization reaction between precipitated silica and bis[3-(triethoxysilyl)propyl] tetrasulfide without premature scorch. The second stage adds 2.5–3.5 phr zinc oxide and 1.5–2.0 phr stearic acid, with sulfur and accelerator added below 105 °C. Modulus at 300% elongation of the cured compound falls between 8.5 MPa and 12 MPa under ISO 37, while tensile strength must exceed 17 MPa. Dynamic mechanical analysis at 10 Hz and 1% strain under ISO 4664-1 gives a tan δ at 60 °C below 0.12 for reduced rolling resistance and a tan δ at 0 °C above 0.30 for wet grip. Abrasion loss under ISO 4649 is typically below 110 mm³ for the sulphur-cured compound.
When Halobutyl Rubber Is Substituted in Pharmaceutical Stopper Formulations
Halobutyl rubber produced by SIBUR through its Reliance joint venture is used in bromobutyl vulcanizates for serum and lyophilization stoppers, where the substitution decision is governed by cure-state control and extractables. The polymer has a bromine content of 1.1–1.4 wt% and an unsaturation level of 1.6–2.0 mol%, which allows zinc oxide crosslinking without elemental sulfur or thiourea. A typical stopper compound contains 100 phr bromobutyl rubber, 5 phr zinc oxide, 1 phr stearic acid, and 20–50 phr of calcined clay or platy talc, with a Mooney viscosity ML 1+4 at 100 °C of 35–55 MU under ASTM D1646. Mixing must not exceed 130 °C because dehydrohalogenation begins to split off hydrogen bromide above 135 °C, causing scorch and microporosity after vulcanization. Compression molding at 160–170 °C for 8–12 min produces a tensile strength above 9 MPa and elongation at break above 450% under ISO 37. The cured stopper is cleaned and steam-sterilized at 121 °C for 30 min; regulatory testing under European Pharmacopoeia 3.2.9 and USP <381> limits volatile sulfides, pH shift, and heavy metal extractables. Gas permeability of the bromobutyl vulcanizate at 65 °C is roughly three to five times lower than that of a general-purpose SBR vulcanizate of equal hardness, which is the controlling property for oxygen and moisture ingress in lyophilized drug packaging.
Polymer-modified bitumen for motorway wearing courses requires styrene-butadiene-styrene block copolymer at 3.0–5.0 wt% of the bitumen mass, blended in a high-shear mixer at 180–190 °C for 2–4 hours. SIBUR's butadiene-styrene thermoplastic elastomers with radial or linear molecular architecture and a styrene content of 30–33 wt% are used in this application. The polymer swells in the maltene phase after the addition of 3–7 wt% of a high-aromatic process oil to prevent phase inversion. Storage stability is tested by EN 13399 at 180 °C, where the difference in softening point between the top and bottom sections must remain below 5 °C. Ring-and-ball softening point under EN 1427 increases from 45–50 °C for the base bitumen to 65–80 °C after modification; penetration at 25 °C under EN 1426 falls from 60–70 dmm to 35–45 dmm. Elastic recovery at 25 °C under EN 13398 must exceed 75% for high-stress pavement. MSCR testing under ASTM D7405 at 64 °C and 3.2 kPa stress gives a non-recoverable creep compliance below 0.5 kPa⁻¹ and percent recovery above 30% for traffic-grade modified binders.
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- SIBUR Holding PJSC 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: sales3@ascent-chem.com.
SIBUR Holding PJSC is introduced as an integrated petrochemical production platform rather than a discrete single-grade chemical formulation. The product definition encompasses associated petroleum gas processing, natural gas liquids fractionation, steam cracking, polymerisation, and synthetic rubber production. The platform operates a captive-feedstock model in which raw associated petroleum gas and natural gas liquids are converted at Tobolsk, Tomsk, Perm, Voronezh, Kstovo, and related production sites. Published nameplate capacity at ZapSibNeftekhim in Tobolsk includes 1.5 million tonnes per year of ethylene, 0.5 million tonnes per year of propylene, 1.5 million tonnes per year of polyethylene, and 0.5 million tonnes per year of polypropylene. The platform’s product slate includes high-density polyethylene, linear low-density polyethylene, polypropylene homopolymer, random copolymer, and block copolymer grades, as well as butadiene, methyl tert-butyl ether, and synthetic rubbers.
Across the downstream polymer slate, SIBUR supplies grade-dependent melt mass-flow rates that are characterised according to ISO 1133-1:2022 and ASTM D1238. Commercial polyolefin melt flow rate values commonly span 0.3 to 100 g/10 min across the polyethylene and polypropylene families. Tensile properties are tested under ISO 527-2 and ASTM D638; flexural properties under ISO 178 and ASTM D790; density under ISO 1183-1. Typical processing destinations include blown-film extrusion, cast film, sheet thermoforming, injection moulding, blow moulding, pipe extrusion, and fibre spinning. The differentiation from non-integrated resin suppliers is structural: the platform’s feedstock position provides direct access to ethane, propane, butane, naphtha, and associated petroleum gas, allowing simultaneous production of olefins, polyolefins, synthetic rubbers, and fuel components.
Feedstock Integration and Cracker-Polymer Configuration
Associated petroleum gas processing at SIBUR gas plants separates dry stripped gas from natural gas liquids. The natural gas liquids stream is transported to the Tobolsk fractionation and cracking complex, where de-ethanizer, de-propanizer, and de-butanizer columns produce ethane, propane, butane, and pentane-plus fractions. The ZapSibNeftekhim steam cracker accepts liquefied petroleum gas and naphtha feedstocks, with published nameplate outputs of 1.5 million tonnes per year ethylene and 0.5 million tonnes per year propylene. This configuration differs from ethane-only crackers by yielding a broader C4/C5 stream that supports butadiene extraction and methyl tert-butyl ether production. The integrated configuration reduces monomer logistics exposure and enables direct pipeline transfer from cracking to polymerisation units. Polyethylene is produced through gas-phase and slurry-phase polymerisation lines, while polypropylene units are designed for homopolymer, random copolymer, and impact copolymer grades.
For food-contact and medical packaging operations, SIBUR polyolefin grades designated for food contact are formulated to satisfy EU Regulation 10/2011 and FDA 21 CFR 177.1520. Production sites operate under integrated management systems certified to ISO 9001, ISO 14001, and ISO 45001. Export grades are registered under REACH where required and are assessed against RoHS Directive 2011/65/EU for heavy metal constraints. The compliance matrix below summarises the key test regimes.
| Standard | Scope | Reference Range or Acceptance Criterion |
|---|---|---|
| ISO 1133-1:2022 | Melt mass-flow rate for polyolefins | Grade-specific, within certificate of analysis |
| ASTM D1238 | Melt flow rate by extrusion plastometer | Grade-specific, within certificate of analysis |
| ISO 527-2 | Tensile properties of moulding and extrusion plastics | Grade-specific; typical commercial ranges 20–35 MPa for polyethylene and 25–40 MPa for polypropylene |
| ASTM D638 | Tensile properties of plastics | Grade-specific; equivalent to ISO 527-2 |
| ISO 178 | Flexural properties | Grade-specific; typical flexural modulus 1,000–1,700 MPa for polypropylene |
| FDA 21 CFR 177.1520 | Food-contact olefin polymers | Applicable to designated food-contact grades |
| EU 10/2011 | Plastics in food contact | Applicable to designated food-contact grades |
What Limits Conversion Efficiency in Associated Petroleum Gas Upgrading?
Associated petroleum gas composition at the inlet of SIBUR gas processing plants varies by field and production season, typically containing 60–80 mol% methane, 2–8 mol% ethane, 2–10 mol% propane, 1–6 mol% butanes, and 0.5–3 mol% pentanes-plus. The separation train must manage hydrate formation, acid gas removal, and cryogenic demethanizer operation. Carbon dioxide and hydrogen sulfide are removed in amine units; residual water is reduced to low ppm levels in molecular-sieve dryers. Published data for the specific demethanizer overhead temperature profile in SIBUR gas processing plants is limited. However, general cryogenic natural gas liquids recovery designs operate demethanizer overhead at -80 °C to -95 °C to achieve C2 recovery above 90%. The SIBUR platform’s total associated petroleum gas processing capacity is published at approximately 25 billion cubic metres per year, which provides the natural gas liquids volume required to sustain the downstream cracker complex. Batch-to-batch variance in associated petroleum gas composition requires upstream stabilizer dosing adjustments and periodic revalidation of fractionation column pressure profiles.
Polyethylene blown-film and pipe extrusion lines operating on SIBUR high-density polyethylene grades should maintain melt temperatures between 190 °C and 230 °C unless a specific grade technical data sheet states otherwise. Blow-moulding operations for high-molecular-weight high-density polyethylene use accumulator-head machines with melt temperature up to 230 °C; screw L/D ratios of 24:1 to 30:1 are common for polyolefin extrusion. Processors must avoid contamination with copper or copper alloys at melt temperatures because transition-metal residues accelerate thermo-oxidative chain scission. Polyolefins do not require pre-drying under normal storage conditions; however, exposure to liquid water or condensation on pellets should be removed with dry-air conveying or an 80 °C hopper dryer for 1–2 h if free moisture is visible. These boundaries are operational constraints, not product specification failures.
When Polypropylene Copolymer Grades Are Selected for Injection Moulding
Injection moulding of SIBUR polypropylene block copolymer grades is typically run with melt temperature 220–250 °C, mould temperature 20–50 °C, and hydraulic back pressure 0.5–2.0 MPa. Clamp force requirements are derived from projected part area and cavity pressure, commonly 800 kN to 25,000 kN for technical parts. Screw injection speeds of 50–150 mm/s are used depending on flow length and wall thickness. The grades are formulated for impact-strength and stiffness properties tested under ISO 180 or ASTM D256 for notched Izod impact, and ISO 306 or ASTM D1525 for Vicat softening temperature. Compared with non-integrated polypropylene suppliers, the SIBUR platform’s direct propylene supply reduces monomer sourcing variability and supports grade consistency. Processing-window deviations above 250 °C may cause molecular weight reduction and odour formation; mould temperatures below 20 °C can produce surface weld lines in thin-wall packaging.
The synthetic rubber segment adds product breadth outside polyolefins. Butadiene rubber and styrene-butadiene rubber are supplied in bale form for tire manufacturing. Mooney viscosity ML(1+4) at 100 °C is measured under ISO 289-1:2018; typical values are grade-specific. Vulcanization kinetics are assessed with a moving-die rheometer under ISO 6502-3 or ASTM D5289. Carbon black dispersion limits and oil extension levels are specified on the certificate of analysis. The platform’s captive butadiene production from the Tobolsk steam cracker provides a distinctive integration position compared with non-integrated elastomer compounders. Tire compound plants must account for rubber grade-specific scorch time, optimum cure time, and filler-loading limits during two-roll mill and internal mixer operations.
The structural distinction from non-integrated resin producers is visible in supply-chain logistics. Non-integrated polymer plants purchase ethylene or propylene from merchant suppliers; the Tobolsk site pipes monomer directly from cracker to polymerisation. This eliminates intermediate monomer storage and reduces off-gas handling, but it also couples polymer line availability to cracker turnarounds. Operational planning therefore requires integrated shutdown scheduling. Published data on specific turnaround intervals for this configuration is limited. Not all polyolefin grades are suitable for medical device or pharmaceutical packaging use. Medical applications require separate validation to ISO 10993-1 or USP Class VI depending on geography. Each shipment is released against a certificate of analysis with grade-specific limits for melt flow rate, density, tensile yield stress, and additive loading. Avoid long-term contact with strong oxidizing acids and halogenated solvents at processing temperatures. Long-term outdoor exposure of unpigmented grades requires ultraviolet stabilizer addition; natural grades without carbon black or hindered amine light stabilizers are not suitable for extended Weather-Ometer exposure beyond 2,000 h under ASTM D2565.