| HS Code | 754933 |
| Product Name | Indian Oil PP Homopolymer 1100FS |
| Polymer Type | Polypropylene Homopolymer |
| Melt Flow Rate | 3.0 g/10 min (230 °C, 2.16 kg) |
| Density | 0.900 g/cm³ |
| Tensile Strength At Yield | 35 MPa |
| Elongation At Yield | 12% |
| Elongation At Break | 500% |
| Flexural Modulus | 1400 MPa |
| Izod Impact Strength Notched 23c | 35 J/m |
| Heat Deflection Temperature 0 45mpa | 100 °C |
| Vicat Softening Point | 155 °C |
| Melting Point | 165 °C |
| Rockwell Hardness | R90 |
As an accredited Indian Oil PP Homopolymer 1100FS factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Indian Oil PP Homopolymer 1100FS is packaged in 25 kg woven polypropylene bags, ensuring safe handling, moisture protection, and easy storage. |
| Container Loading (20′ FCL) | 20' FCL loading of Indian Oil PP Homopolymer 1100FS: packaged in 25kg bags, palletized, stowed securely to prevent shifting. |
| Shipping | Indian Oil PP Homopolymer 1100FS is shipped as free-flowing granules in moisture-protective polypropylene woven bags or jumbo bags, palletized and containerized. Transport in dry, ventilated conditions, avoiding heat, direct sunlight, and ignition sources. Handle gently to prevent bag damage and contamination. |
| Storage | Store Indian Oil PP Homopolymer 1100FS in a cool, dry, well-ventilated area, away from direct sunlight, heat, and open flames. Keep original packaging sealed to prevent moisture, dust, and contamination. Avoid stacking excessively high to maintain pellet integrity. No special hazardous storage is required, but good housekeeping reduces fire risk. |
| Shelf Life | Shelf life is typically 12 months from dispatch if stored unopened, dry, and away from direct sunlight. |
On a three-layer BOPP tenter line with a die width of 2.4 m and a line speed near 280 m/min, Indian Oil PP Homopolymer 1100FS is processed as the core layer at 235–245°C. The grade is specified with a melt flow index of 11 g/10 min when tested under ISO 1133-1:2022 at 230°C and 2.16 kg. A homopolymer PP of this melt flow class enters the tenter frame with a cast sheet haze below 1.5% when the chill roll is maintained at 18–24°C. The cast sheet thickness is set at 220–260 µm to allow transverse stretch to 8.0–9.5× without puncture. Edge bead instability appears if the die lip temperature is allowed to fall below 205°C. The die gap is set to 2.8 mm. The melt pump inlet pressure is held between 120 bar and 150 bar. The stretched film is annealed in the tenter at 150–165°C with 3–5% transverse direction relaxation to reduce heat shrinkage below 4.0% at 120°C when measured per ASTM D1204-14. The finished film is 18–25 µm. Pre-drying is not required if storage relative humidity remains below 60%. At higher relative humidity, a 2 h desiccant drying step at 80°C suppresses edge bubbles. The core layer formulation is 100 wt% unfilled 1100FS. Skin layers are formulated with 0.8–1.2 wt% of a silica/PP antiblock masterbatch and 0.3–0.6 wt% of a slip masterbatch to control coefficient of friction. The final film meets EU Regulation 10/2011 Annex I Table 1 with overall migration below 10 mg/dm² under simulant D1 for 10 days at 40°C. The resin is covered by FDA 21 CFR 177.1520(c) for olefin polymers in contact with food. Terminal products include printed flexible packaging, adhesive tape base film, metallised laminate, and label face stock.
| Process Variable | Setting/Range | Measurement Basis |
|---|---|---|
| Melt temperature | 235–245°C | Adapter probe |
| Chill roll temperature | 18–24°C | Surface thermocouple |
| Cast sheet thickness | 220–260 µm | Beta gauge |
| MD draw ratio | 4.8:1–5.2:1 | Roll speed differential |
| MD preheat roll temperature | 120–135°C | IR pyrometer |
| TD draw ratio | 8.0:1–9.5:1 | Tenter rail position |
| TD preheat zone temperature | 155–168°C | Oven RTD |
| Anneal zone temperature | 150–165°C | Oven RTD |
| TD relaxation | 3–5% | Rail width reduction |
Because 1100FS is a controlled-rheology homopolymer with a narrow molecular weight distribution, the onset of draw resonance shifts as take-off speed rises. On a single-screw extruder with an L/D of 30:1 and a 90 mm screw, the tape line is run at a melt temperature of 200–220°C. The die gap is 0.6 mm. The extruded flat tape is quenched in a water bath at 30–38°C before slitting. Slit tapes enter a hot-air stretch oven at 130–150°C. A draw ratio above 1:8.0 raises the risk of fibrillation and lowers weft tear strength. The optimum draw ratio for 1100FS is 1:6.5–1:7.5. At this draw ratio, tape tensile strength measured on a 2 mm wide tape reaches 4.5–5.5 N/mm² when tested per ISO 527-3:2018. The relaxation section is operated at 140–150°C with a 4–6% shrinkage allowance. Woven sack fabric tensile strength is evaluated per ISO 13934-1:2013. The formulation is 100.0 phr 1100FS with 2.0–3.0 phr calcium carbonate masterbatch and 0.2–0.5 phr of a processing stabilizer masterbatch if reprocessed edge trim exceeds 10 wt%. For outdoor cement sacks, 1.5–2.5 phr of a UV stabilizer masterbatch containing hindered amine light stabilizer is added. The UV-modified tapes are tested for tensile strength retention after 500 h of QUV exposure per ISO 4892-3:2016. Terminal products are woven polypropylene sacks for cement, fertilizer, sand, and grain, secondary carpet backing, and flexible intermediate bulk container side panels. The process boundary is set by melt draw resonance at low stretch ratios and by fibrillation at high stretch ratios. Published data for 1100FS in high-speed tape lines above 350 m/min is limited. For food grain contact, the tape lot must be tested under IS 10910 or EU Regulation 10/2011; industrial sacks do not require food-contact clearance.
Thin-wall injection units running 1100FS at 230°C require an injection speed of 180–250 mm/s to fill a 0.40–0.45 mm cup wall. Melt temperature is set at 230°C, and mould temperature is maintained at 25–40°C using water circulation. A hot-runner system with valve gates is used. Holding pressure is held at 35–45 MPa for 1.5–2.0 s. The cycle time for a 200 ml cup in an 8-cavity tool is 4.5–5.5 s. Clamp tonnage is 1,200–1,500 kN. Melt cushion is controlled at 2.0–3.0 mm. The formulation is 100 phr 1100FS with 1.0–2.0 wt% white masterbatch and 0.1–0.3 wt% antioxidant masterbatch if regrind exceeds 15 wt%. The homopolymer backbone gives flexural modulus of 1,500–1,600 MPa per ISO 178:2019. That supports stackability. The notched Izod impact is lower than impact copolymer PP. The container is rated for cold-fill dairy products up to 4°C. Hot filling above 85°C causes dome distortion. Migration testing is performed per EU Regulation 10/2011 with simulant A for 10 days at 40°C. The US compliance is FDA 21 CFR 177.1520(c). Terminal products are yogurt cups, ice cream tubs, deli containers, and disposable soufflé cups. The main rejection criterion on a high-speed line is rim warp above 0.3 mm. Demoulding is limited by ejection temperature above 65°C. No pre-drying is required for virgin 1100FS when packaging is intact and storage relative humidity is below 60%.
For continuous-thread closures moulded from 1100FS at a wall thickness of 1.0 mm, post-mould shrinkage stabilizes after 24 h at 23±2°C and 50±5% relative humidity. The grade is processed at a melt temperature of 220–240°C with a screw recovery time of 3.0–4.5 s. A valve-gated hot runner with 2 mm gate diameters is used in a 16-cavity mould. Holding pressure is set at 40–50 MPa for 1.5 s. Mould temperature is controlled at 30–50°C. The formulation is 100 phr 1100FS with 0.5–1.0 phr of a slip/antiblock masterbatch. Slip is added to reduce removal torque below 1.8 N·m on a 28 mm PCO 1881 neck. The closure is not intended for carbonated beverage pressure retention. For non-pressurized food jars, migration is evaluated under EU Regulation 10/2011 Annex I Table 1 and FDA 21 CFR 177.1520(c). Terminal products are closures for cosmetics, household chemicals, dry food jars, and pharmaceutical dropper caps. Dimensional check is performed on thread diameter and skirt ovality using ISO 1101:2017. A post-mould inspection gate is set at 0.2 mm flatness variation. The main failure mode is gate vestige cracking when ejection temperature exceeds 65°C.
| Regulation/Standard | Clause/Test | Application Boundary |
|---|---|---|
| FDA 21 CFR | 177.1520(c) | Olefin polymers in food-contact articles excluding pressurized beverage bottles |
| EU Regulation 10/2011 | Annex I Table 1 | Overall migration 10 mg/dm² simulant D1, 40°C, 10 days |
| REACH | EC 1907/2006 Annex XVII | No SVHC above 0.1 wt% in industrial crates |
| RoHS | Directive 2011/65/EU recast | Pb, Hg, Cd, Cr VI below 1000 ppm, Cd below 100 ppm |
When 1100FS is used as a lower-cost homopolymer alternative in non-food crates, the design must compensate for the lower notched Izod impact strength. The homopolymer PP has a notched Izod of 3.5–4.5 kJ/m² per ISO 180:2023 at 23°C. This is below impact copolymer values of 8–12 kJ/m². The crate wall thickness is increased from 2.5 mm to 3.0 mm. Rib depth is raised to 4 mm. The formulation is 100 phr 1100FS with 20–30 wt% recycled PP scrap if allowed by the end application. The melt temperature is set at 230–245°C. The injection speed is 100–150 mm/s. The holding pressure is 50–60 MPa. Mould temperature is 20–40°C. Drop impact at -20°C is not recommended. Compliance for industrial crates is limited to REACH Annex XVII and RoHS recast. No food-contact migration testing is required. Terminal products are logistics totes, stackable storage bins, agricultural crates, and material handling trays. The main processing bottleneck is warpage due to higher crystallinity. A post-mould cooling jig at 25°C for 15 s is used. Published data for 1100FS in large-part injection moulding at shot weights above 800 g is limited.
Thermoforming sheet produced from 1100FS is extruded at 225–235°C through a 1.8 m flat die onto a polishing stack. The sheet thickness is 0.8–1.0 mm. Sheet is heated to 175–190°C in a quartz oven. A plug-assist pressure of 4–6 bar is used. The mould temperature is 55–65°C. Wall thickness variation is measured by ultrasonic thickness gauge. The lower melt strength of 1100FS limits draw depth to 40–50% of the part diameter. Deeper draws sag and produce thin corners. The formulation is 100 phr 1100FS with 1.0–2.0 wt% nucleating masterbatch to accelerate crystallization and reduce cycle time. Food-contact trays are tested per EU Regulation 10/2011 Annex I Table 1 and FDA 21 CFR 177.1520(c). Terminal products are bakery trays, cookie trays, electronics blister packs, and fresh produce punnets. Sheet regrind at 20 wt% is tolerated without visible die lines. High moisture regrind above 0.1% moisture causes pinholes. Pre-drying of regrind at 80°C for 2 h is required. Published data for 1100FS in deep-draw thermoforming is limited; parameters are transferred from homopolymer PP of the same melt flow class.
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Indian Oil PP Homopolymer 1100FS is a pelletized isotactic polypropylene homopolymer whose grade designation encodes a nominal melt flow rate of 11.0 g/10 min measured at 230°C under 2.16 kg piston load in accordance with ISO 1133-1:2022. The 1100 segment follows Indian Oil’s numerical melt-flow convention, while the FS suffix positions the grade within fibre, slit-film tape, and sheet extrusion sequences. Because the backbone contains no ethylene comonomer or dispersed elastomer phase, the product exhibits a stiffer crystalline matrix than random or impact copolymer counterparts, with observable differences in tensile yield stress, flexural modulus, and dimensional retention under load. Certificate-of-analysis values for the specific lot govern shipment acceptance; class-typical data may not supersede supplier documentation for antioxidant formulation, pellet bulk density, or end-use regulatory status.
Lot conformity for 1100FS is typically evaluated through three primary indices. Melt Flow Rate is determined at 230°C under 2.16 kg load by ISO 1133-1:2022, with commercial tolerance frequently maintained within ±10% of nominal. Xylene solubles content measured by ISO 16152:2022 indicates the atactic and low-molecular-weight fraction; for high-stiffness homopolymer grades in the 11 dg/min flow band, typical values remain below 4 wt%, although lot-specific values must be read from the certificate of analysis. Boiling heptane extraction, where the manufacturing facility applies it, generally yields an isotactic index above 95%. Pellet bulk density determined by ISO 60:2023 typically falls between 520 and 560 g/L, a range that influences silo discharge rates, vacuum-conveying behaviour, and gravimetric feeder calibration in centralized raw-material systems. Published data for this specific grade’s organoleptic panel scores and haze development over extended warehousing is limited; converter-side testing remains required where those properties are release-critical.
Drying of 1100FS is generally unnecessary when intact bagging and plant humidity below 60% RH are maintained. Surface condensation on cold pellets transferred from outdoor silos can, however, introduce splay at extrusion temperatures. In such conditions, a desiccant dryer set to 80°C for 2–4 h removes surface moisture without deactivating the hindered phenolic or phosphite stabilizer package. The addition of masterbatch concentrates is executed with gravimetric or volumetric feeders at 2–5 wt%; below 1 wt%, a static mixer or dynamic dispersive element is required downstream of the metering zone to prevent local concentration striations in the tape or spun yarn.
Melt temperature excursions above 280°C in extruder elbows, static mixers, or spin packs initiate β-scission in the polypropylene chain, lowering zero-shear viscosity in a manner that cannot be recovered by subsequent cooling. For 1100FS, residence time at melt temperatures above 260°C should remain below 10 min; beyond this exposure, measurable declines in slit-tape tenacity and impact strength emerge in post-stretching evaluations even when the pellet Melt Flow Rate specification is maintained. Twin-screw compounding on corotating lines with L/D 40:1 and vacuum devolatilization should avoid barrel zone setpoints above 240°C unless reactive functionalization is expressly intended. Sustained sump temperatures above 250°C for longer than 30 min degrade hindered-amine stabilizer activity, shifting oxidation induction time measured by ISO 11357-6 toward values below 15 min. Avoid combination of 1100FS with copper-containing additives or free-radical initiator masterbatches unless controlled rheology modification is explicitly specified; copper stearate accelerates thermo-oxidative degradation at concentrations as low as 50 ppm.
In stretched-tape manufacture, as-spun sheet exits the water bath with a mixed crystalline phase that includes a metastable smectic fraction. Oven drawing at 120–160°C converts the smectic phase to α-monoclinic crystals and multiplies molecular orientation along the tape axis. The practical working window remains narrower: below 110°C, surface fibrillation and transverse splitting occur because chain mobility in the crystalline fraction is insufficient; above 170°C, individual tapes begin to adhere and draw ratio control becomes unstable. For 1100FS tapes on conventional hot-air ovens with residence times of 4–8 s, a draw ratio of 6:1–8:1 is a common starting range producing unit-denier tenacity adequate for woven sack and FIBC fabric after annealing. Draw resonance, evidenced by periodic thickness oscillation, is suppressed by maintaining a thermal gradient of at least 20°C between oven entry and exit and by limiting melt draw-down before the water quench.
For slit-film tape lines, single-screw extruders with L/D between 24:1 and 30:1 and compression ratios of 3:1–4:1 provide adequate plastication. A gear pump between screw tip and die stabilizes melt-pressure ripple and improves transverse tape thickness uniformity. Barrel zones are profiled from 180°C near the feed throat to 230°C at the metering section, with flat-die temperature held at 230–250°C. A breaker plate operating at 40–60 MPa head pressure and screen-pack filtration at 100–150 µm retains agglomerated stabilizer fines, reducing film splits during subsequent stretching. Water bath quench temperature is normally maintained at 30–40°C; lower quench temperatures increase the smectic fraction and can raise maximum attainable draw ratio but also increase susceptibility to uneven cooling in high-speed processes.
Thin-wall moulding with wall thickness below 1.2 mm benefits from the 11.0 dg/min flow band, but gate freeze time becomes the controlling process limitation. At nozzle temperatures of 220–240°C and mould temperatures of 30–50°C, the no-flow temperature of 1100FS is approximately 115°C; holding pressure must be terminated before gate crystallization seals the melt path. Injection velocity should fill the cavity in 0.5–1.0 s, with switchover to holding pressure at 95–98% of fill volume inferred from screw position. Hydraulic or electric injection moulding machines with clamp forces from 50 to 120 t per 4-cavity stack moulds are commonly used for caps, closures, and housewares; hot-runner manifold temperatures must not exceed 250°C to prevent drool and thermal degradation residue in the manifold channels.
| Conversion route | Parameter | Typical range | Associated equipment or reference |
|---|---|---|---|
| Slit-film tape extrusion | Barrel profile | 180–230°C | Single-screw extruder, L/D 24:1–30:1 |
| Slit-film tape extrusion | Flat-die temperature | 230–250°C | Flat die, lip gap 0.5–1.0 mm |
| Slit-film tape extrusion | Water quench | 30–40°C | Circulating water bath |
| Tape drawing | Oven temperature | 120–160°C | Hot-air oven, residence 4–8 s |
| Tape drawing | Draw ratio | 6:1–8:1 | Differential-speed godets |
| Injection moulding | Melt temperature | 220–240°C | Reciprocating screw, L/D 18:1–22:1 |
| Injection moulding | Mould temperature | 30–50°C | Tempered water channels |
| Injection moulding | Hold pressure | 50–70% of injection peak | Machine-specific hydraulic or electric control |
Food-contact suitability for 1100FS is not automatically conferred by the polymer backbone alone; the complete formulation must be assessed against FDA 21 CFR 177.1520 for olefin polymers, EU Regulation 10/2011, and IS 10910 where applicable. Specific migration limits for overall migration of 10 mg/dm² under EU 10/2011 must be verified on finished articles using fatty-food simulants. Unfilled homopolymer formulations containing no heavy-metal pigments and no slip agents above specified thresholds are typically suitable for repeated contact with non-fatty foods at room temperature, but the grade should not be used in retort or microwave applications above 100°C unless the converter validates organoleptic stability under EN 1186-1 conditions. Published data for 1100FS-specific performance under EN 1186-1 is limited, and such testing is normally conducted on the finished packaging rather than on the pellet.
1100FS differs from Indian Oil random copolymer grades in the same melt-flow band by the absence of ethylene comonomer. The homopolymer retains a higher flexural modulus, typically 1500–1600 MPa by ISO 178, versus 1150–1300 MPa for random copolymers containing 3–4 wt% ethylene. It also generates lower optical haze in quenched film because secondary crystallization proceeds without ethylene sequence irregularity broadening the crystallite size distribution. Conversely, the homopolymer exhibits lower notched Izod impact resistance at 23°C and a steeper loss below 0°C, where impact copolymers retain higher fracture resistance through ethylene-propylene rubber domains. For slit-tape, woven sack, and monofilament applications, the stiffer homopolymer matrix is preferred because tape stretching requires a crystalline network that can sustain orientation without rubbery-phase tears or stress whitening.
| Property | Test method | 1100FS homopolymer class | Random copolymer, same MFR band | Impact copolymer, same MFR band |
|---|---|---|---|---|
| Melt flow rate | ISO 1133-1:2022 | 11.0 g/10 min nominal | 10–12 g/10 min | 10–12 g/10 min |
| Density | ISO 1183-1:2019 | 0.905 g/cm³ | 0.900–0.905 g/cm³ | 0.900–0.910 g/cm³ |
| Tensile yield stress | ISO 527-2:2012 | 34–36 MPa | 28–30 MPa | 25–28 MPa |
| Flexural modulus | ISO 178:2019 | 1500–1600 MPa | 1150–1300 MPa | 1200–1400 MPa |
| Notched Izod impact, 23°C | ISO 180/A | 2.0–2.5 kJ/m² | 4–6 kJ/m² | 8–15 kJ/m² |
| Notched Izod impact, −20°C | ISO 180/A | 1.0–1.5 kJ/m² | 2–3 kJ/m² | 4–6 kJ/m² |
| Vicat softening temperature, A50 | ISO 306 | 154–158°C | 140–148°C | 148–153°C |
Colour and additive masterbatches for 1100FS should use a polypropylene carrier having melt flow rate within ±20% of the base grade. Polyethylene-based carrier masterbatches introduce refractive-index mismatch at 2–5 wt% dosage and can lower quenched-film clarity; above 5 wt%, incompatibility appears as delamination and fibrillation during tape stretching. For outdoor tape and FIBC applications, ultraviolet stabilizer concentrates based on hindered amine light stabilizers and carbon black are normally dosed to meet ISO 105-B04 xenon-arc exposure targets agreed between compounder and end user. Reprocessing of 1100FS edge trim and scrap is permissible up to three heat histories when the recycled fraction is kept below 20 wt% of the feed; higher recycle ratios depress intrinsic viscosity and widen molecular weight distribution, reducing stretch consistency on high-speed godets.
