Products

WINTEC™
Metallocene Polypropylene WINTEC™

A completely new polypropylene with a variety of performance features.

"WINTEC™" is a completely new PP with a homogeneous molecular structure and a variety of performance features that conventional catalysts cannot achieve.
The original metallocene catalyst technology developed by Japan Polypropylene Corporation makes it possible to create the PP polymer molecular structure as intended.

Metallocene catalyst

Conventional catalysts and polymer molecular structure

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Low molecular weight and low crystallinity components, causing smoke, odor, and stickiness.

Metallocene catalyst and polymer molecular structure

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Molecular weight (length) and crystallinity are consistent, with low molecular weight and low crystallinity components.

Molecular Weight Distribution
Molecular Weight Distribution
Crystallinity Distribution
Crystallinity Distribution

Metallocene PP WINTEC™ is characterized by its slim molecular structure, which significantly reduces unnecessary low molecular weight and low crystallinity components by narrowing the crystallinity (regularity) and molecular weight distribution.
This results in a clean material with little smoke generation, roll staining, product stickiness, or odor during molding. It also has excellent solvent extraction resistance, making it suitable for food packaging and medical applications.

In addition, for random PP (ethylene-propylene random copolymer), we have succeeded in developing PP with an ultra-low melting point, which could not be achieved with conventional catalysts. This PP offers unprecedented and outstanding performance in applications such as heat-sealing films.

WINTEC™ Features

WINTEC™ also has the following other features that are expected to provide an excellent balance of properties in many application areas.

Characteristics of Molecular Structure Expected Performance Uses, etc.
  • Narrow crystalline distribution
  • Low melting point polymers can be produced
  • Good rigidity and heat resistance commensurate with melting point
  • Excellent transparency
  • Food containers and packaging, Transparent sheets
  • Heat seal material, Shrink film, Overwrap packaging
  • Low molecular weight and low crystalline content
  • Excellent solvent extractability, low odor and taste
  • Less smoke, odor, and mold contamination during molding
  • Low surface contamination due to surface bleed
  • Less surface stickiness
  • Food containers and packaging, Medical containers and packaging
  • Secondary processing fields such as printing and vapor deposition
  • Easy processing of film materials and various applications
  • Improvement of environment and production efficiency in molding process
  • Narrow molecular weight distribution
  • Low melt tension, good draftability, and good stretchability
  • Fiber, Meltblown, Spunbond
  • High-speed processing of lamination, CPP, etc.

The new performance of PP realized by WINTEC™ has the potential for a variety of application developments.
Through WINTEC™, Japan Polypropylene Corporation proposes new ways to use PP.

Application examples

This is examples of product applications that takes advantage of the characteristics of WINTEC™.

Highly transparent packaging container applications

Highly transparent packaging container applications

Clean Packaging Container Applications

Clean Packaging Container Applications

Hinge Cap Applications

Hinge Cap Applications

Low temperature heat sealing Applications

Low temperature heat sealing Applications

Surface Protective Film Applications

Surface Protective Film Applications

Nonwoven Fabric Applications

Nonwoven Fabric Applications

Autoclave Sterilizable Medical Components

Autoclave Sterilizable Medical Components

Grade list/Download

Physical properties of WINTEC™

  Grade WFX6 WFX4M WXK1233 WFX4TA WFW4M WMX03 WSX03 WSX03A WMG03 WMG03UX
Items Unit Test Method
MFR g/10min ISO 1133 2.0 7.0 7.0 7.0 7.0 25 25 25 30 30
Density g/cm3 ISO 1183 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9
Flexural Modulus MPa ISO 178 700 750 750 750 1,050 750 800 800 1,250 1,450
Flexural Strength 25 26 26 26 33 24 26 26 39 42
Tensile Modulus MPa ISO 527-1 750 750 750 750 1,050 750 800 800 1,300 1,450
Tensile Stress @ Yield 22 22 22 22 27 22 23 23 31 33
Nominal Tensile Strain % >200 >200 >200 >200 >200 >200 >200 >200 >200 >200
Charpy Impact Strength @ 23degC kJ/m2 ISO 179 10 8.0 8.0 8.0 6.0 8.0 6.5 6.5 2.5 3.5
Charpy Impact Strength @ 0degC 2.5 2.0 2.0 2.0 1.0 2.0 2.0 2.0 1.0 1.0
Rockwell Hardness --- ISO 2039-2 70 75 75 75 90 70 75 75 95 100
Heat Deflection Temperature @ 0.45MPa Load degC ISO 75 70 70 70 70 80 65 70 70 90 90
Gloss % ASTM D523-89 85 85 85 85 85 90 85 85 85 90
HAZE (1mmt) % ISO 14782 30 12 12 12 25 10 40 40 50 3
HAZE (2mmt) 75 50 50 45 60 25 75 75 85 10
Spiral Flow mm JPP Method - 460 460 460 460 740 740 740 770 770
Mold Shrinkage % JPP Method 1.0-1.4 1.0-1.4 1.0-1.4 1.0-1.4 1.0-1.4 1.0-1.4 1.0-1.4 1.0-1.4 1.0-1.4 1.2-1.6
Applications Film          
Injection        
Fiber・Nonwovens                  
PL confirmation certificate for food applications (JPN) Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved
  • This is a typical data, not to be construed as specification.
  • ・Application suitability should be confirmed with the final product by referring to the physical property values.

CONTACT

Please feel free to contact us for any work requests or consultations.
We will propose the best solution for our customers.

GROUP COMPANY

Japan Polychem Corporation
Japan Polyethylene Corporation