TPX DX820M – High-Flow Heat-Resistant PMP Resin by Mitsui Chemicals

TPX DX820M is a high-flow polymethylpentene (PMP) resin manufactured by Mitsui Chemicals, Inc. – the world‘s sole producer of TPX brand PMP resins. As an authorized distributor and trader, we supply genuine material with full traceability and direct access to official Mitsui Chemicals technical documentation. For more product options and company information, please visit our website at https://szrqchem.com/.

TPX is a crystalline polyolefin made from 4-methylpentene-1, produced by Mitsui Chemicals’ special technology of molecular design and catalyst. TPX DX820M is a specialty grade developed specifically to dramatically improve extrusion lamination performance. While the standard DX820 grade exhibits a neck-in of 200mm during lamination, DX820M reduces this to just 100mm, and the molten film is exceptionally stable with virtually no edge flutter (ear揺れ).

TPX DX820M offers an exceptional combination of properties:

• High heat resistance – melting point of 233-234°C

• Low density – only 0.84 g/cm³

• Excellent extrusion lamination performance – significantly improved neck-in and film stability

• Superior releasability – one of the lightest polymer materials among thermoplastics

• Good chemical & steam resistance – high durability against acid, alkali and alcohol

TPX DX820M is recommended for processing by extrusion lamination (both single-layer and multi-layer co-extrusion). The material is suitable for food contact applications and exhibits gas permeability, low refractive index, low dielectric properties, and high insulation properties equivalent to fluororesin.

Key Features of TPX DX820M

• Superior Extrusion Lamination Performance – Neck-in dramatically reduced from 200mm (DX820) to 100mm (DX820M); molten film is exceptionally stable with virtually no edge flutter

• High Heat Resistance – Melting point of 233-234°C; suitable for high-temperature applications and steam sterilization

• Low Density – Density of only 0.84 g/cm³ – one of the lightest polymer materials among thermoplastics

• Excellent Flowability – MFR of 200-220 g/10min at 260°C, 5kg – designed for high-speed extrusion lamination processing

• Superior Releasability – Excellent release properties; one of the lightest polymer materials among thermoplastic plastics

• Good Chemical & Steam Resistance – High durability against acid, alkali and alcohol; excellent chemical and steam resistance

• High Gas Permeability – Exhibits high gas permeability due to its unique molecular structure

• Low Refractive Index & Low Dielectric Properties – Low dielectric constant (2.13 at 1MHz) and high insulation properties equivalent to fluororesin

• High Transparency – Excellent transparency equivalent to glass and acrylic

• Multi-Layer Co-extrusion Capability – Can be combined with other TPX grades (e.g., DX820, MX021) for two-layer co-extrusion lamination to improve processing performance

• Versatile Applications – Suitable for food containers, release films for FPC, rubber hoses, release paper for synthetic leather, animal cages, resin modification, LED molds, experimental apparatuses, and hollow fiber

Typical Applications for TPX DX820M

Typical Properties

Important Notes on Typical Data:

• Values listed are typical and sourced from Mitsui Chemicals official data sheets. They do not constitute binding product specification.

• Batch-to-batch deviations may exist. For critical applications, validate performance with batch-specific COA certificate.

• Final performance depends on processing conditions, mold design, and part geometry.

• Mitsui Chemicals official TDS shall serve as definitive technical reference. Request the latest official TDS from our sales team.

Processing Guidelines

Critical Processing Warnings:

• Extrusion Lamination: DX820M was specifically developed to dramatically improve extrusion lamination performance. Neck-in is significantly reduced from 200mm (DX820) to 100mm (DX820M), and film stability is greatly improved.

• Multi-Layer Co-extrusion: DX820M can be combined with other TPX grades (e.g., DX820, MX021) for two-layer co-extrusion lamination to further improve processing performance.

• Drying: TPX DX820M is not highly hygroscopic and typically does not require drying. If moisture is a concern, dry at 80-100°C for 2-3 hours.

• Temperature Control: Due to TPX‘s crystalline nature, proper temperature control is essential. Lower processing temperatures and shorter residence times provide better physical properties.

• Regrind: Regrind can be used up to 20-30% with virgin material, provided it is clean and properly dried.

Related Products

• Explore TPX Transparent Resins – Browse all TPX resin options

• Explore Engineering Plastics – Browse all engineering plastic materials

• About Our Company – Learn more about our supply capabilities and quality assurance

Technical Documents

Request any document above by:

• Email: ruiqingchem@gmail.com

• Online form: Our contact page

We reply within one working business day. Please clearly state product (TPX DX820M) and document type you require.

FAQ

Q1: What is TPX DX820M and what is it used for?
A: TPX DX820M is a high-flow polymethylpentene (PMP) resin manufactured by Mitsui Chemicals. It was specifically developed to dramatically improve extrusion lamination performance. It is widely used in extrusion lamination/coating, food containers, FPC release films, rubber hoses, LED molds, and general industrial applications.

Q2: What makes TPX DX820M different from standard DX820?
A: DX820M offers significantly improved extrusion lamination performance – neck-in is reduced from 200mm (DX820) to just 100mm (DX820M), and the molten film is exceptionally stable with virtually no edge flutter. DX820M also has a higher MFR (200 vs 180 g/10min) and slightly higher density (0.84 vs 0.833 g/cm³).

Q3: Is TPX DX820M FDA compliant?
A: Yes. TPX DX820M is suitable for food contact applications and complies with relevant food contact regulations.

Q4: What is the density of TPX DX820M?
A: The density is 0.84 g/cm³ (841 kg/m³), making it one of the lightest polymer materials among thermoplastics.

Q5: What is the melting point of TPX DX820M?
A: The melting point is 233-234°C, providing excellent heat resistance for high-temperature applications.

Q6: What is the MFR of TPX DX820M?
A: The Melt Flow Rate is 200-220 g/10min at 260°C, 5kg, designed for high-speed extrusion lamination processing.

Q7: What processing methods can be used for TPX DX820M?
A: TPX DX820M is recommended for extrusion lamination (both single-layer and multi-layer co-extrusion). It can be combined with other TPX grades for two-layer co-extrusion lamination.

Q8: What are the key features of TPX DX820M?
A: Key features include superior extrusion lamination performance (reduced neck-in, stable film), high heat resistance (MP 233-234°C), low density (0.84 g/cm³), high flowability (MFR 200-220), good chemical & steam resistance, and low dielectric properties.

Q9: What is the Vicat softening point of TPX DX820M?
A: The Vicat softening point is 152°C.

Q10: What is the lead time for orders?
A: Regular orders ship within 7-10 working days after payment confirmation. Large-volume or urgent orders can be negotiated separately.

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Sample Policy:

• Samples are for laboratory validation tests only, not for production use.

• Buyer bears international sample-shipping freight.

• If bulk-product performance deviates from sample reference, Mitsui Chemicals official TDS serves as the authoritative benchmark.

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Disclaimer

DISCLAIMER: All technical data is referenced from original Mitsui Chemicals typical values for TPX DX820M. Our company acts as authorized distributor/trader rather than original manufacturer. Final performance depends on processing conditions, mold design, and part geometry. Buyers shall independently validate product suitability for individual applications. Our firm bears no liability for product failure caused by improper processing or improper usage. Always reference the latest Mitsui Chemicals official TDS of TPX DX820M as the definitive specification.