| HS Code | 484213 |
| Density | 0.90 g/cm³ |
| Melt Flow Rate 230 C 2 16 Kg | 10 g/10min |
| Tensile Strength At Yield | 28 MPa |
| Elongation At Break | 12% |
| Flexural Modulus | 1150 MPa |
| Izod Impact Strength 23 C Notched | 5.5 kJ/m² |
| Heat Deflection Temperature 0 45 Mpa | 95 °C |
| Melting Point | 165 °C |
| Vicat Softening Temperature | 150 °C |
| Rockwell Hardness | R 95 |
As an accredited MARPOL COPP 10.NB PP Copolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | MARPOL COPP 10.NB PP Copolymer is supplied in 25 kg net polyethylene-lined multiwall paper bags, sealed and labeled. |
| Container Loading (20′ FCL) | Load 20′ FCL container with MARPOL COPP 10.NB PP Copolymer, ensuring secure palletized cargo, proper ventilation, and no contamination. |
| Shipping | Transport as non-hazardous polypropylene copolymer granules in clean, dry containers or hopper trucks. Protect from moisture, direct sunlight, and excessive heat. Avoid contamination with incompatible materials. Use covered conveyance to prevent spillage and maintain product purity. Standard handling precautions apply. |
| Storage | Store MARPOL COPP 10.NB PP Copolymer in a cool, dry, well-ventilated area, away from direct sunlight, heat, and ignition sources. Keep containers tightly sealed to prevent moisture ingress and contamination. Avoid contact with strong oxidizers. Maintain good housekeeping and use appropriate personal protective equipment when handling. |
| Shelf Life | Shelf life is typically 12 months from manufacture when stored in original sealed containers, away from heat, moisture, and direct sunlight. |
The following application notes are limited to MARPOL COPP 10.NB as a nucleated polypropylene copolymer grade. All processing windows, compliance limits and mechanical values require confirmation against the batch certificate, the finished-article specification and tool-specific design-of-experiment data. The material shall not be used for load-bearing or safety-critical applications without part-level validation.
The grade designation of MARPOL COPP 10.NB indicates a nominal melt flow rate of 10 g/10 min when tested in accordance with ISO 1133-1:2022 at 230 °C under 2.16 kg piston load. In automotive interior substrates such as door panel lower trims, centre console carriers, A-pillar covers and rear package tray end caps, this flow class is selected to balance thin-wall filling against long-term dimensional stability. A nucleated PP copolymer of this class typically exhibits flexural modulus in the range of 1,100 MPa to 1,450 MPa when tested to ISO 178:2019 and Charpy notched impact strength above 8 kJ/m² at 23 °C when tested to ISO 179-1:2010. These values define the processing-performance envelope rather than the final part property, because adding colour masterbatch, scratch additives or glass fibre reinforcement shifts the solid-state mechanical response.
Emission behaviour in interior air-quality programmes is governed primarily by the full thermal history of the compound. Residence time in the plasticating unit, hot runner temperature and post-mould trimming all contribute to volatile condensables. Pellets conditioned below 0.05 wt% moisture are suitable for direct feeding. When ambient relative humidity exceeds 60%, a hopper dryer set at 80 °C for 2 h is required to prevent silver streaking on visible surfaces. Barrel temperature profiling from rear to nozzle follows 200 °C, 220 °C, 240 °C and 240 °C, with nozzle temperature not exceeding 250 °C. Mould surface temperature is maintained between 30 °C and 60 °C for high-gloss or grained A-surface replication. Injection pressure in wall sections of 1.2 mm to 2.5 mm usually falls between 80 MPa and 120 MPa in conventional cold-runner tools. For valve-gated hot runner systems, the gate diameter should not fall below 1.2 mm, because excessive shear heating accelerates chain scission and increases the total volatile emission signal measured by VDA 278:2011.
| Verification parameter | Test standard | Typical target for interior PP class | Condition or note |
|---|---|---|---|
| Total VOC emission | VDA 278:2011 | ≤ 100 µg/g | Finished part, including colour and release agent contribution |
| Fogging condensate | DIN 75201:2011 | ≤ 2 mg | Reflectometric variant uses 70% minimum reflectance |
| Odour | PV 3900:2000 | ≤ 3 | OEM-specific acceptance, 23 °C and 40 °C |
| Charpy notched impact strength | ISO 179-1:2010 | ≥ 8 kJ/m² at 23 °C | Type 1 edgewise specimen, milled notch |
| Flexural modulus | ISO 178:2019 | 1,100–1,450 MPa | Class range, not grade-specific release value |
| Heat deflection temperature B | ISO 75-2:2013 | 70–105 °C at 0.45 MPa | Nucleated PP copolymer class |
Scratch and mar performance on visible interior parts is not controlled solely by the base resin. Talc-filled or slip-additive formulations may be required for pillar trims exposed to direct contact. Any such modification must be re-validated for emission behaviour and for low-temperature impact after heat ageing. For grain retention after ejection, the nucleating system in MARPOL COPP 10.NB supports earlier solidification, but tool temperature uniformity remains the limiting factor for warp-free centre console side panels with length-to-thickness ratios above 200:1.
High-cavitation dairy cup tooling running 64-cavity stack moulds with valve-gated hot runners uses the 230 °C melt-flow value of MARPOL COPP 10.NB under 2.16 kg load to calculate pressure drop across the runner system. In cup wall sections below 0.6 mm, screw-forward time becomes shorter than gate freeze time if the hot runner temperature is not tightly controlled. The recommended melt temperature range for thin-wall food packaging is 220 °C to 250 °C, with hot runner temperature held between 230 °C and 250 °C. When the melt is processed above 250 °C, low-molecular-weight oxidation products increase the sensory contribution measured by EN 1230-1:2009. Mould temperature in dairy cup production is normally maintained between 10 °C and 30 °C to achieve rapid solidification without condensation on the cavity surface. The nucleated crystallization behaviour of MARPOL COPP 10.NB permits demoulding at a higher fraction of crystallinity than non-nucleated grades, but cycle time reduction is tool-specific. Reports from valve-gated cup tooling indicate 10% to 20% cycle time reduction relative to non-nucleated PP copolymer grades of equivalent MFR; this must be confirmed by short-shot studies and cavity pressure monitoring.
Food-contact status for finished dairy cups, margarine tubs and deli containers made from MARPOL COPP 10.NB requires compliance of the finished article under EU No 10/2011. Overall migration into food simulant A, B or C shall not exceed 10 mg/dm² when tested under the intended contact time and temperature. For the United States market, the base polymer falls under FDA 21 CFR 177.1520 as an olefin polymer if the supplier confirmation and the finished article meet the relevant conditions of use. The converting operation must verify that any masterbatch, lubricant or antistatic additive is also food-contact approved. Top-load strength on dairy cups is commonly measured to ASTM D2659-16, while drop performance of filled containers is assessed by ISTA 3A procedures. These package tests are not resin properties; they are system tests dependent on cup geometry, sidewall orientation and closure fit.
Sheet extrusion of MARPOL COPP 10.NB for heavy-gauge thermoformed appliance liners and cold-chain transit packaging requires a controlled crystallization window because the nucleating system reduces the available forming time before crystalline haze develops. Extruder barrel zones are set from 210 °C to 250 °C, with flat die temperature at 230 °C and roll stack temperature between 70 °C and 90 °C. Sheet thickness in this segment ranges from 1.0 mm to 4.0 mm. The roll stack must maintain uniform contact pressure to avoid frozen-in orientation that later releases as edge curl during clamp-frame heating. In the thermoforming oven, surface temperature of the sheet should reach 165 °C to 185 °C. Below 165 °C, premature crystallinity reduces melt tear strength and causes webbing in sharp corner radii. Above 185 °C, the sheet sags excessively, producing non-uniform wall thickness in refrigerator liner pockets deeper than 200 mm.
Plug-assist settings for a high-density nucleated PP sheet differ from amorphous materials. The plug should be heated to 100 °C to 120 °C to delay cold-stretching of the sheet. Plug speed during pre-stretch is typically set below 300 mm/s to avoid localised thinning at the base corners. Forming air pressure in pressure forming is maintained between 0.4 MPa and 0.7 MPa. If moisture content exceeds 0.02 wt% in the extruded sheet, blisters form during the heating cycle. Sheet or pellets stored above 60% relative humidity for more than 8 h should be dried at 80 °C for 3 h before extrusion. The specific moisture limit for MARPOL COPP 10.NB should be confirmed from the supplier certificate, because nucleating agents can act as nucleation points for water vapour blistering.
Refrigerator liners, freezer base trays and reusable cold-chain totes produced from this grade must be evaluated for environmental stress crack resistance under polyurethane foam contact and detergent exposure. Crazing at thermoformed corners is assessed by visual inspection after load application according to ISO 22088-2:2006 or the applicable appliance manufacturer internal standard. A linear low-density polyethylene cap layer may be coextruded where gloss reduction and chemical resistance are required. That coextruded structure changes the forming window and the regrind ratio. When regrind from edge trim exceeds 20%, the crystallization speed of the sheet increases further, and the forming oven set point must be lowered by 5 °C to 10 °C to avoid optical haze in deep-draw zones.
Parison geometry for lightweight jerrycan shells produced from MARPOL COPP 10.NB is set by die swell and sag time under a melt temperature of 190 °C to 210 °C. This processing window is lower than injection moulding because continuous extrusion blow moulding relies on melt strength and controlled swell rather than fast plasticating. Extruder barrel temperatures from feed to head are typically 170 °C, 190 °C, 200 °C and 205 °C. Accumulator head capacity for this segment commonly ranges from 1.5 kg to 5 kg, with parison programming of 20 to 40 points to control wall thickness in pinch-off and handle zones. Blow pressure is maintained between 0.6 MPa and 1.0 MPa, and mould temperature is held between 15 °C and 30 °C to stabilise the pinch weld line. In jerrycan production, the pinch weld is the limiting defect location because it combines melt damage from the parison knife and reduced wall thickness at the parting line.
Industrial container applications such as 20 L jerrycans, agricultural chemical cans and detergent bottles require package-level performance rather than resin-level certification. Drop testing is performed to ASTM D5276-19 or UN Chapter 6.1 depending on the transport classification. Stack testing follows ASTM D4577-16 or equivalent ISO 2234:2015 under constant load. These tests are geometry-dependent and must be repeated for each mould family. Published data for the environmental stress crack resistance of this specific grade in aggressive agricultural chemical environments is limited; testing on finished bottles with the actual fill formulation is therefore mandatory. The use of external flame treatment for ink adhesion must not exceed a surface energy of 40 mN/m to 44 mN/m, as higher treatment levels can oxidise the parison surface and reduce drop impact at −20 °C.
Washing machine tub rings, small appliance bases and dishwasher spray-arm carriers moulded from MARPOL COPP 10.NB are specified when thick-wall flow length exceeds 200 mm and wall thickness ranges from 3.0 mm to 6.0 mm. The melt flow rate of 10 g/10 min under ISO 1133-1:2022 conditions is sufficient to fill these sections, but the nucleating system shortens the post-mould shrinkage stabilisation time. For tub rings exposed to 60 °C to 90 °C wash water and detergent pH between 10 and 11, long-term creep resistance is governed by the semi-crystalline morphology and not by short-term tensile modulus alone. Creep modulus values for nucleated PP copolymer of this class after 1000 h at 90 °C may fall below 400 MPa when measured to ISO 899-1:2017. However, published data for this specific configuration with the exact nucleating package is limited, and part-level creep testing under thermal cycling is required.
Weld-line impact strength is the primary process risk in tub rings because the flow front divides around the bearing hub and rejoins at the outer circumference. The weld line may retain only 40% to 60% of the parent Charpy notched impact strength in unfilled PP copolymers. Gate placement, melt temperature above 230 °C and holding pressure between 70% and 80% of peak injection pressure are used to maximise weld-line healing. Mould temperature should be increased to 60 °C in the weld zone if hot warpage allows. Sink marks around thick ribs are controlled by packing time longer than the gate freeze time; gate freeze time in a 6.0 mm wall section is typically longer than 8 s but must be determined by cavity pressure sensors. Pre-drying at 80 °C for 2 h is required when ambient relative humidity exceeds 60%.
Electrical junction boxes moulded from MARPOL COPP 10.NB are specified when low-temperature impact after heat ageing is required below −20 °C. The copolymer phase contributes to impact resistance, but stabilisation is the controlling factor for long-term service in outdoor enclosures. Accelerated ageing at 110 °C for 500 h in accordance with ISO 188:2023 is a typical screening method, followed by Charpy notched impact testing to ISO 179-1:2010. Retention of more than 50% of the original impact value after ageing is commonly used as an acceptance boundary for PP copolymer junction boxes, but the exact requirement is set by the enclosure standard, not by the resin supplier. Moulded-in brass inserts introduce notch stresses and require insertion depth of at least 4 mm with ultrasonic or heat insertion below 120 °C to avoid local embrittlement of the copolymer phase around the insert.
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MARPOL COPP 10.NB is classified as a polypropylene impact copolymer in which a propylene matrix carries a dispersed ethylene–propylene rubber phase. The identifier is read as a medium-flow, nucleated injection-moulding grade, with the numeral 10 indicating a nominal melt mass-flow rate near 10 g/10 min when tested at 230 °C and 2.16 kg in accordance with ISO 1133-1. The suffix is interpreted as a copolymer grade with a nucleating package, although the supplier’s code definition takes precedence over inferential reading. Classification is performed under ISO 19069-1 for polypropylene moulding and extrusion materials, and the material can be reported within an ASTM D4101 cell class only when the supplier certificate includes the required mechanical and thermal properties. Because the manufacturer’s published technical data sheet was not available for this specific product code during preparation, any numeric windows below are reference ranges for medium-melt-flow impact copolymer grades with similar architecture; lot-specific conformance must be obtained from the certificate of analysis.
For load-bearing enclosures and structural clips, the primary design checks are tensile modulus, yield stress, flexural modulus, and notched impact resistance. Under ISO 527-2, reference medium-flow impact copolymer grades commonly display a tensile modulus between 1100 MPa and 1600 MPa and a tensile stress at yield between 22 MPa and 28 MPa; elongation at yield is typically lower than a random copolymer and falls near 4% to 7%. Flexural modulus measured according to ISO 178 is typically 1000–1500 MPa, placing the material below a 10 g/10 min homopolymer in room-temperature stiffness but above a random copolymer of equivalent flow. Notched Charpy impact strength under ISO 179-1/1eA is the defining difference: reference impact copolymer grades of this flow class range from 8 kJ/m² to 20 kJ/m² at 23 °C, and many retain 4 kJ/m² to 8 kJ/m² at −20 °C. Thermal resistance is moderate: Vicat softening temperature under ISO 306 is commonly 148–155 °C for the A50 method, and heat deflection temperature under ISO 75-2 at 0.45 MPa is typically 75–90 °C. These values are not acceptance limits for MARPOL COPP 10.NB unless confirmed by the supplier’s certificate of analysis.
On production-scale injection moulding machines of 80–120 t clamp force, the grade’s medium melt-flow rate permits filling of thin-wall sections down to approximately 1.0–1.5 mm at practical injection pressures, but the nucleating package accelerates crystallisation once the melt cools below the crystallization peak. Barrel-temperature profiles are generally set between 200 °C and 250 °C, with a nozzle temperature near 230 °C; mould-wall temperatures from 20 °C to 50 °C are used to control skin formation and shrinkage. Pre-drying at 80 °C for 2–4 h is required when storage relative humidity exceeds 60%, because surface moisture can generate splay marks in thick ribs and around hot gates. In multi-cavity tools, flow imbalance from gate-to-gate viscosity differences is more severe at melt temperatures below 210 °C, where the dispersed rubber phase increases apparent viscosity and reduces weld-line strength. Use of a shut-off nozzle and controlled decompression is recommended to prevent drool and gate stringing on tooling with hot-runner systems operating above 245 °C.
MARPOL COPP 10.NB follows shear-thinning behaviour typical of impact copolymers. At 230 °C and shear rates of 1000–5000 s⁻¹, apparent viscosity falls from low-shear values as the polymer aligns in the melt and the dispersed rubber phase deforms; the power-law index for a medium-flow impact copolymer is commonly between 0.30 and 0.45 in the injection-moulding shear-rate window. A comparatively low zero-shear viscosity is not expected because the nominal flow rate is 10 g/10 min, not a high-flow grade; therefore, pack pressure must remain on the part until gate freeze-off, especially in thick bosses from 3 mm to 6 mm. Nucleation modifies crystallisation kinetics more than melt viscosity. Under differential scanning calorimetry according to ISO 11357-3, nucleated impact copolymer crystallisation peaks can be shifted upward by 5–12 °C relative to non-nucleated impact copolymer of similar comonomer content. This shift reduces mould cooling time but narrows the processing window: a mould-wall temperature below 20 °C can freeze the skin before the core is packed, producing voids in thick sections, while a mould-wall temperature above 60 °C extends cycle time and can increase differential shrinkage between flow and transverse directions. For tooling with 16–32 cavities, gate freeze-off is controlled by the fast crystallisation of the nucleated skin, and the holding-pressure profile should be tuned by cavity-pressure sensors rather than timer alone.
In material-selection workflows, MARPOL COPP 10.NB occupies a position between stiff polypropylene homopolymers and soft, transparent random copolymers. A homopolymer of the same nominal melt flow rate has higher room-temperature tensile modulus and lower notched toughness, making it suitable for rigid, unfilled parts but unsuitable where cold-temperature ductility or hinge abuse is required. A random copolymer has better optical clarity and lower haze because comonomer disrupts spherulite growth, but its tensile modulus and heat resistance are lower; it is preferred for transparent packaging and medical containers. Higher-flow impact copolymer grades with nominal melt flow rates from 20 g/10 min to 44 g/10 min fill extremely thin moulds and reduce clamp force, but often at reduced impact toughness and lower yield stress. MARPOL COPP 10.NB therefore fits applications that require an intermediate combination of flow, stiffness, and low-temperature impact; the trade-off is that the nucleated heterophasic structure can develop visible flow lines or weld lines in complex tools, and the grade is not designed for optical clarity.
| Material class | ISO 179-1/1eA notched Charpy at 23 °C | ISO 527-2 tensile modulus | Optical character |
|---|---|---|---|
| PP homopolymer, nominal MFR 10 g/10 min | 2–4 kJ/m² | 1500–1800 MPa | Translucent to opaque |
| PP random copolymer, nominal MFR 10 g/10 min | 3–8 kJ/m² | 900–1200 MPa | Transparent |
| PP impact copolymer reference class, MARPOL COPP 10.NB | 8–20 kJ/m² | 1100–1600 MPa | Opaque |
In automotive interior trim, battery housing covers, and appliance structural enclosures, the part designer must balance low-temperature impact, stiffness, and controlled shrinkage. Under ISO 294-4, mould shrinkage for this class of nucleated impact copolymer is typically 0.8–1.3% in the flow direction and 1.0–1.5% transverse, with less differential shrinkage than a non-nucleated impact grade because the nucleating agent refines spherulites. The benefit is lower warpage in flat lids and housings; the constraint is that the faster crystallization reduces the time available for wall-thickness compensation. Rib-to-wall ratios should be maintained at 0.5–0.7, and gate location is preferably placed near thick sections to avoid premature freeze-off. For parts requiring dimensional tolerance of ±0.1 mm, mold-flow analysis must include pressure-dependent viscosity and crystallisation data from ISO 11357-3 rather than default amorphous assumptions. In appliance enclosures exposed to warm internal components, service temperatures above 70 °C under continuous load exceed the practical structural boundary of this grade unless filler or reinforcement is used; the unfilled impact copolymer is not intended for structural load at heat deflection temperatures near 90 °C without additional support.
Post-moulding batch-to-batch variation is most visible in injection-moulded parts with long flow paths. On a 35 mm diameter, 20:1 L/D screw at clamp force 120 t, a shift in MFR from 10 g/10 min to 8 g/10 min can require 5–10 °C higher melt temperature to maintain identical fill time; the higher stock temperature can then increase cycle time or differential shrinkage in thin sections. Conversely, an increase to 12 g/10 min may reduce pack-pressure demand but increase flash risk at parting lines. Colour masterbatch addition and regrind ratio should therefore be held within supplier-defined limits because both can shift nucleation density and apparent viscosity without changing the base resin certificate.
For regulatory submissions concerning consumer and industrial applications, compliance must be demonstrated for the exact grade and lot. Food-contact use requires confirmation under FDA 21 CFR 177.1520 or the European Plastics Regulation EU 10/2011, including overall migration and specific migration limits for the intended food simulant and temperature. Electrical and electronics use requires a supplier declaration against RoHS Directive 2011/65/EU for lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE; REACH registration under EC 1907/2006 must confirm no restricted SVHC above threshold. The material is not recommended for continuous exposure to strong oxidising acids, aromatic solvents, or chlorinated hydrocarbons, because swelling and stress cracking can occur; UV-stabilised grades should be specified for outdoor service, with weathering validated by ISO 4892-2 or equivalent. For medical device use, ISO 10993-1 biological evaluation is outside the standard resin certification and must be performed on the finished device.
| Standard or regulation | Scope | Required product-specific confirmation |
|---|---|---|
| ISO 1133-1 | Melt mass-flow rate | Certificate of analysis for nominal 10 g/10 min |
| ISO 527-2 | Tensile properties | Tensile modulus, yield stress, yield strain |
| ISO 179-1/1eA | Notched Charpy impact | Values at 23 °C and −20 °C |
| ISO 306 | Vicat softening temperature | A50 or B50 method |
| ISO 75-2 | Heat deflection temperature | 0.45 MPa or 1.80 MPa |
| ISO 294-4 | Moulding shrinkage | Flow and transverse directions |
| FDA 21 CFR 177.1520 | Polypropylene food-contact compliance | End-use conditions and food simulant |
| EU 10/2011 | Food-contact plastics | Overall migration and specific migration |
