| HS Code | 513790 |
| Density | 0.905 g/cm³ |
| Melt Flow Rate | 12 g/10 min (230°C/2.16 kg) |
| Tensile Strength At Yield | 35 MPa |
| Flexural Modulus | 1500 MPa |
| Elongation At Break | 50% |
| Heat Deflection Temperature | 100°C at 0.45 MPa |
| Vicat Softening Point | 155°C |
| Melting Point | 160°C |
| Rockwell Hardness | R100 |
As an accredited MTEGRITY PP Homopolymer PP410 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | MTEGRITY PP Homopolymer PP410 is supplied as solid pellets in 25 kg sealed woven bags, ensuring safe handling and storage. |
| Container Loading (20′ FCL) | MTEGRITY PP Homopolymer PP410 loaded in 20′ FCL, secure palletized bags, ventilated container, ensuring safe transport and stability. |
| Shipping | MTEGRITY PP Homopolymer PP410 is a polypropylene homopolymer supplied as free-flowing pellets. It ships in sealed bags, bulk sacks, or railcars/trucks. Keep dry, away from heat and sunlight. Not regulated as dangerous goods. Store in a clean, ventilated area. |
| Storage | Store MTEGRITY PP Homopolymer PP410 in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and open flames. Keep containers tightly sealed to prevent contamination and moisture pickup. Avoid excessive stacking or mechanical damage. Maintain indoor temperatures below 50°C and protect from weathering. Ensure good housekeeping to minimize dust accumulation and static discharge risks. |
| Shelf Life | Shelf life is typically two years from manufacture when stored unopened in original packaging in cool, dry conditions. |
Thin-wall injection molding of MTEGRITY PP Homopolymer PP410 on high-output packaging lines is constrained by the interaction between melt flow, crystallisation rate, and part ejection. The material is characterised under ISO 1183-1 by a density of 0.90 g/cm³. Tensile yield strength for PP homopolymer of this melt flow class ranges from 30 MPa to 38 MPa under ISO 527-2, flexural modulus from 1,200 MPa to 1,600 MPa under ISO 178, and notched Izod impact from 2 kJ/m² to 5 kJ/m² under ISO 180. When the certificate of analysis confirms a nominal melt flow rate of 4.0 g/10 min at 230 °C/2.16 kg under ISO 1133-1:2022, the grade is suitable for multi-cavity tools producing wall thickness from 0.6 mm to 1.2 mm. Melt temperature is maintained between 220 °C and 250 °C; residence time in the barrel should not exceed 15 min at 230 °C to limit thermo-oxidative degradation. Hydraulic injection moulding machines with clamp force from 1,800 kN to 2,500 kN are used. Injection speed should not exceed 200 mm/s for hot-runner sprueless moulds to avoid shear heating above 260 °C. Mould surface temperature is kept at 15 °C to 40 °C. Below 10 °C, visible flow hesitation lines and weld-line weakness appear. Hold pressure of 60 MPa to 90 MPa applied for 2 s to 5 s counters shrinkage in ribs and bosses. Post-mould shrinkage is evaluated after 24 h conditioning at 23 °C ± 1 °C under ISO 291; PP homopolymer mould shrinkage ranges from 1.0% to 1.5% under ASTM D955-21. The resin complies with food-contact frameworks in unpigmented or white formulations, including FDA 21 CFR 177.1520(c) and EU No 10/2011, with overall migration below 10 mg/dm² under EN 1186-1. Pre-drying is required only when ambient relative humidity exceeds 60%; then desiccant drying at 80 °C for 2 h with a dew point of -30 °C prevents surface splay. Production-scale failure modes are nozzle freeze-off below 200 °C tip temperature and gate blush above 250 °C. Terminal parts are thin-wall dairy cups, tamper-evident caps, overcaps for personal care jars, and rigid housewares.
Cast film extrusion of MTEGRITY PP Homopolymer PP410 on a single-screw extruder with screw diameter 90 mm and L/D ratio 30:1 exposes a specific limitation: chill roll temperature below 30 °C may reduce film haze but also increases the risk of pinning instability. The melt is extruded through a flat die with die gap set between 0.5 mm and 0.8 mm. Melt temperature at the die inlet is held between 230 °C and 250 °C, monitored by infrared thermography. The molten web is pinned to the chill roll by an air knife at 0.3 MPa to 0.5 MPa and a vacuum box. Chill roll surface temperature is maintained at 20 °C to 30 °C; below 20 °C, the quench rate suppresses spherulite growth but may cause brittle film edges and higher reel tension variability. Above 35 °C, blocking becomes severe. Draw resonance appears when the stretch ratio between die lip and winder exceeds 20:1, producing periodic thickness bands. Stable line speed for a 0.03 mm film is typically lower than for higher-melt-flow grades because the 4.0 g/10 min melt flow rate reduces drawability. Corona treatment is applied in-line at 38 mN/m to 42 mN/m wetting tension according to ASTM D2578-09a. Film tensile properties are measured according to ASTM D882; typical machine-direction tensile strength for PP homopolymer cast film of this class falls in the 35 MPa to 45 MPa range. Haze is evaluated per ISO 14782. Compliance for flexible food contact uses follows FDA 21 CFR 177.1520 and EU No 10/2011, with overall migration testing under EN 1186-1. The terminal web is used as print lamination film, overwrap, and as a base for adhesive-coated tape.
| Parameter | Target range | Measurement method |
|---|---|---|
| Melt temperature at die inlet | 230 °C to 250 °C | Infrared thermography |
| Die gap | 0.5 mm to 0.8 mm | Physical gauge |
| Chill roll temperature | 20 °C to 30 °C | Surface thermocouple |
| Air knife pressure | 0.3 MPa to 0.5 MPa | Pressure gauge |
| Corona treatment wetting tension | 38 mN/m to 42 mN/m | ASTM D2578-09a |
| Final film thickness | 0.02 mm to 0.04 mm | Beta gauge |
Sequential biaxial orientation of MTEGRITY PP Homopolymer PP410 begins with a cast base sheet of 0.2 mm to 0.5 mm thickness. The sheet is quenched on a chill roll at 15 °C to 25 °C to stabilise crystallite size. Machine-direction stretching is performed on heated rolls at 120 °C to 135 °C with a draw ratio of 4.5:1 to 5.5:1. Transverse stretching follows in a tenter frame with zone temperatures from 155 °C to 165 °C and a draw ratio of 8:1 to 10:1. The transverse stretching temperature window is ±5 °C. Web temperature below 150 °C creates transverse thickness bands; above 170 °C causes web sag between clips. Tensile properties of the biaxially oriented film are measured under ASTM D882. Haze is measured under ISO 14782; light transmittance under ASTM D1003. Surface tension is raised to 38 mN/m to 42 mN/m for metallising and print anchor coating. Published data for this specific configuration is limited; metallised BOPP of this thickness typically reports water vapour transmission below 5 g/m²·day at 23 °C and 85% RH when measured by ISO 15106-3. The film complies with FDA 21 CFR 177.1520 and EU No 10/2011 for dry food overwrap.
Die lines are controlled by purging with a high-viscosity PP after 8 h of continuous operation. Gel count above 10 particles per 100 cm² at 0.1 mm diameter produces optical defects in metallised film. Line speed is limited by melt strength. For final film thickness below 0.015 mm, a higher melt flow homopolymer is preferred. PP410 operates within its stable window at 0.02 mm to 0.04 mm final gauge. Terminal products include metallised barrier film, printed label facestock, cigarette overwrap, and adhesive tape base film.
Raffia tape extrusion of PP410 starts with a flat die slit gap of 0.8 mm to 1.2 mm. The extrudate enters a water bath held at 30 °C to 45 °C. The quenched film is slit into tapes and passed to a hot-air stretching oven at 120 °C to 140 °C. Draw ratio is set between 6:1 and 8:1. Residual surface water on the tape must stay below 1 wt% before the oven because droplets create local quenching defects and bubble formation. An air knife at 0.4 MPa and a suction slot remove excess water. The stretched tape is annealed on hot rolls at 100 °C to 120 °C with 3% to 6% relaxation to reduce residual shrinkage. Tape tenacity is measured under ASTM D2256; PP homopolymer tapes of this class typically achieve 2.5 cN/dtex to 4.5 cN/dtex. Elongation at break is kept below 20%. Fabric tensile strength is assessed under ISO 13934-1.
Water bath temperature above 45 °C increases surface tack and causes tape breakage during drawing. Bath temperature below 30 °C increases film stiffness and raises draw force, leading to fibrillation instability. The melt flow rate of 4.0 g/10 min restricts die throughput compared with grades above 8.0 g/10 min, but improves tape tensile strength retention after drawing. Unpigmented resin complies with RoHS limits under 2011/65/EU. Terminal products are woven sacks, FIBC panels, carpet backing yarn, and geotextile tape.
Sheet extrusion of PP410 is performed on a flat die with a three-roll polishing stack. Roll temperatures are set at 60 °C to 80 °C. Sheet gauge is controlled between 0.8 mm and 1.5 mm. Melt temperature is 230 °C to 250 °C. The sheet is reheated to 150 °C to 170 °C before vacuum or pressure forming. Vacuum thermoforming is suitable up to draw ratios of 3:1. Plug-assisted pressure forming is required above that ratio. Mould temperature is held at 20 °C to 40 °C. Wall thickness distribution is measured by ultrasonic gauge and maintained within ±0.1 mm. Post-forming shrinkage for PP homopolymer sheet is 0.8% to 1.2% after 24 h conditioning under ISO 291. The heating cycle must avoid surface temperatures above 175 °C, which cause sheet sag and non-uniform wall distribution; below 145 °C, stress whitening occurs at the plug contact. This grade is not suitable for foamed sheet without chemical blowing agent modification.
| Application segment | Jurisdiction | Standard | Scope |
|---|---|---|---|
| Injection molded food packaging | USA | FDA 21 CFR 177.1520(c) | Olefin polymer extraction limits |
| Injection molded food packaging | EU | EU No 10/2011 | Overall migration ≤ 10 mg/dm² |
| Flexible film | Global | ASTM D882 | Tensile properties of thin sheeting |
| Raffia fabric | Global | ISO 13934-1 | Tensile strength of woven fabric |
| Monofilament rope | Global | ISO 2307 | Rope breaking force |
| Surface treatment | Global | ASTM D2578-09a | Wetting tension of film |
Monofilament extrusion of MTEGRITY PP Homopolymer PP410 uses a single-screw extruder with L/D ratio 30:1 and a gear pump to stabilise die pressure at 10 MPa to 25 MPa. The melt temperature is set at 220 °C to 240 °C at the spinneret. Spinneret hole diameter ranges from 0.4 mm to 2.0 mm. The air gap between die face and water quench bath is 10 mm to 50 mm. The water quench bath is maintained at 25 °C to 35 °C. The quenched filament is drawn in hot water or hot air at 90 °C to 120 °C. Draw ratios from 5:1 to 9:1 produce tensile tenacity between 3 cN/dtex and 6 cN/dtex under ASTM D2256. Final filament diameter for industrial rope and brush bristles is 0.10 mm to 0.50 mm. Rope breaking force is evaluated under ISO 2307. The main constraint is melt fracture at the die lip when shear rate exceeds 1,000 s⁻¹, producing rough filament surface and poor abrasion resistance. Recycled content above 5% may introduce particles larger than 0.1 mm that clog spinneret holes. The 4.0 g/10 min melt flow rate restricts throughput on high-speed spin-draw lines designed for high-melt-flow polymers. Terminal products include monofilament ropes, brush bristles, agricultural support twine, artificial turf thatch, and extruded netting. Food-contact netting is assessed under FDA 21 CFR 177.1520 and EU No 10/2011.
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MTEGRITY PP Homopolymer PP410 is listed in product summaries as a polypropylene homopolymer for injection moulding and extrusion. A complete technical data sheet containing grade-specific rheological, mechanical, and thermal values was not available from the consulted public sources at the time of writing. The following description therefore separates class-level behaviour common to highly isotactic polypropylene homopolymers from certificate-level data that must be obtained from the resin supplier before tooling design, regulatory review, or production qualification.
The processing and final properties are influenced less by density and more by molecular weight distribution and isotacticity. Isotacticity determines crystallinity and thus flexural modulus, while molecular weight distribution controls shear thinning and low-temperature impact. PP410 is described as a homopolymer, so ethylene comonomer should be absent or very low; however, the stereochemistry, stabilizer package, and nucleation state are not confirmed in the available public trade literature.
The model designation PP410 does not by itself encode a public melt-flow rate, filler content, or nucleation package. Processors should request a batch certificate for each production lot. The certificate should include the following test designations at minimum:
| Property | Test designation | Unit |
|---|---|---|
| Melt mass-flow rate at 230 °C/2.16 kg | ISO 1133-1, condition M | g/10 min |
| Density | ISO 1183-1 | g/cm³ |
| Tensile stress at yield | ISO 527-2 | MPa |
| Flexural modulus | ISO 178 | MPa |
| Charpy notched impact strength | ISO 179-1/1eA | kJ/m² |
| Heat deflection temperature at 0.45 MPa | ISO 75-2/B | °C |
| Vicat softening temperature | ISO 306/A50 | °C |
| Moulding shrinkage | ISO 294-4 | % |
| Ash content | ISO 3451-1 | % |
The absence of a publicly available certificate means that exact PP410 values cannot be confirmed here. The supplier should state whether the grade contains a nucleating or clarifying package, because this affects shrinkage, optical haze, and crystallization onset. A differential scanning calorimetry curve according to ISO 11357-3 can be requested to verify melting enthalpy and crystallization temperature. Melt enthalpy and crystallization temperature are useful for detecting contamination by ethylene-containing copolymers and for assessing lot-to-lot consistency.
If other MTEGRITY PP grades are available with lower or higher melt-flow rate, PP410 should be positioned within that range using ISO 1133-1. A lower-MFR homopolymer generally offers higher melt strength and impact for extrusion or thick-wall parts; a higher-MFR grade offers lower viscosity for thin-wall injection but may have reduced impact. Published data are not available to locate PP410 within this range.
For migration-sensitive uses, PP410 must be verified against EU 10/2011 as amended, FDA 21 CFR 177.1520, REACH, and RoHS. The presence of antioxidants, acid scavengers, slip agents, or antistatic additives can alter the regulatory declaration. No food-contact certification for PP410 was identified in the reviewed public record.
At ambient storage and relative humidity below 60 %, polypropylene homopolymer may not require pre-drying. If the resin is stored at relative humidity above 60 %, if regrind is used, or if surface aesthetics are critical, desiccant drying at 80–90 °C for 2–4 h is common. The drying-air dew point should be held below −20 °C. These are class-level recommendations; PP410-specific drying conditions should be confirmed during start-up.
Thermal-oxidative degradation imposes the first boundary. Unstabilized PP homopolymer is susceptible to free-radical chain scission at elevated melt temperature. For unfilled homopolymer, a melt temperature of 220–250 °C is generally selected, with the lower end for thick-wall parts and the upper end for thin-wall parts. Residence time above 270 °C should be minimized. A 25:1 L/D general-purpose screw with barrel temperatures from 200 °C in the feed zone to 230 °C at the nozzle is a reasonable starting point, but infrared probe verification of actual melt temperature is required.
Gate shear is a second boundary. In moulds with wall thickness below 1.0 mm, calculated gate shear rates can exceed 10,000 s−1. At high shear rates, unfilled PP homopolymer can develop surface defects such as sharkskin or gate blush. Capillary rheometry according to ISO 11443 should be carried out before gate dimensions are finalized. For conventional PP homopolymer tooling, the gate land length-to-diameter ratio is often 0.8:1 to 1.5:1; shorter lands reduce pressure loss but may cause jetting in unfilled grades.
Shrinkage anisotropy is a third boundary. High-isotacticity homopolymer develops higher crystallinity than random copolymer, so differential shrinkage between the flow and transverse directions can create bowing in flat closures or large-area components. Unfilled PP homopolymer mould shrinkage commonly falls within 1.2–2.2 % when measured according to ISO 294-4; PP410-specific values require a moulded plaque. Pack pressure of 60–120 bar and sufficient gate freeze time are typically used to control sink marks. The actual packing profile depends on part thickness, runner balance, and gate design.
Screw recovery is a fourth boundary. On hydraulic injection machines with clamp force between 500–5,000 kN, shot-weight consistency depends on non-return valve condition. A worn check ring permits melt backflow during injection, increasing fill time and reducing pack efficiency. This behaviour is common to low-viscosity homopolymer grades; no PP410-specific failure data are published. For a 25:1 L/D screw with a compression ratio of 2.5:1–3.5:1, a back pressure of 50–100 bar and a screw speed of 80–150 min−1 are typical starting points for medium-sized injection machines.
Rigid packaging closures, thin-wall cups, and houseware components are common application fields for high-stiffness PP homopolymer grades. In closures, the stiffness advantage can be characterized by axial compression force according to ISO 604. The actual PP410 result should be generated from moulded specimens. For thin-wall cups, high-flow homopolymer can fill long flow lengths when the tool is balanced; however, melt temperature should not be increased beyond the stabilizer limit to compensate for poor runner design. A Melt Flow Rate value alone is insufficient to predict thin-wall fill capability because the shear-thinning behaviour of the lot controls high-shear viscosity.
Selection of PP410 over a polypropylene random copolymer involves a trade-off between stiffness and heat resistance on one side, and impact and optics on the other. Homopolymer contains fewer ethylene comonomer insertions, which increases crystallinity, flexural modulus, and heat deflection temperature but typically lowers notched impact strength and increases haze. The comparison should be documented using ISO 178 for flexural modulus, ISO 179-1/1eA for Charpy notched impact, and ASTM D1003 for haze.
| Property and test designation | PP homopolymer class | Random copolymer class | Impact copolymer class |
|---|---|---|---|
| Flexural modulus ISO 178 | Higher | Lower | Lower |
| Notched Charpy impact ISO 179-1/1eA | Lower | Moderate | Higher |
| Heat deflection temperature ISO 75-2/B | Higher | Lower | Lower |
| Optical haze ASTM D1003 | Higher | Lower | Moderate to higher |
The relative trend is established for unfilled polypropylene classes, but certificate values for PP410 are required for engineering decisions. For downgauging, a homopolymer may allow thinner wall sections because of its higher flexural modulus, but reduced notched impact may require ribbing or radius modifications. Impact copolymer retains greater ductility at low temperature, but its lower heat deflection temperature may limit hot-fill or dishwasher-use articles. Random copolymer is preferred for transparent articles, but it has lower stiffness and lower heat-deflection temperature.
Rheological characterization with a twin-bore capillary rheometer according to ISO 11443 should be performed at three melt temperatures: 200 °C, 230 °C, and 260 °C. The data are fitted to a Cross-WLF or modified Carreau model. The melt-flow-rate value from ISO 1133-1 is a single-point measurement at low shear rate; a grade with the same MFR can have a different shear-thinning slope depending on molecular weight distribution. The viscosity ratio from 100 s−1 to 1,000 s−1 is often 2.0–3.5 for unfilled PP homopolymer; no PP410-specific ratio is published. Entering unverified rheological coefficients into Moldflow can produce false short-shot prediction. In-mould pressure sensors in the runner and cavity should be used during the production trial. Transfer pressure is determined by short-shot study; holding pressure is increased until part weight stabilizes and the gate freezes.
Outdoor exposure of unstabilized PP homopolymer leads to UV-initiated free-radical oxidation, surface crazing, and tensile loss. If PP410 is used in outdoor articles, a UV-stabilized version or a compounded hindered amine light stabilizer package is required. Contact with oxidizing acids, halogens, or copper alloys at elevated temperature should be avoided. Regrind fractions should be qualified for melt-flow shift, colour change, and impact reduction. Any migration-sensitive use must be verified against EU 10/2011, FDA 21 CFR 177.1520, and applicable regional requirements. Published data for PP410 in these specific regulatory configurations are limited.
