Features

Polyester Elastomer PELPRENE™

• ●A comprehensive range of performance across four composition types
• ●A wide range of hardness
• ●Excellent oil and chemical resistance
• ●Excellent bending fatigue resistance
• ●Excellent low temperature properties
• ●Compatible with injection, extrusion, and blow molding and more, offering a wide range of possibilites for applications

The chemical structure of PELPRENE™

• ●PELPRENE™　P-Type

These general purpose grades have the best balance of properties like flexibility, cold resistance, and moldability

• ●PELPRENE™ S-Type

This type offers middle and high hardness grades with heat aging resistance and weather resistance.

• ●PELPRENE™ EN-Type

This type has excellent oil and chemical resistance and exceptional dimensional stability against heat.

• ●PELPRENE™ C-Type

This type has excellent resistance to heat aging, water, and oil.

The hardness of the polymer changes depending on the ratio of hard segments to soft segments.

Spec・Quality

Temperature ranges of various elastomers

Elastic modulus of PELPRENE™ types P, S, EN, and C

Thermal Durability of PELPRENE™

The figure shows thermal durability of general purpose PELPRENE™ grades. Thermal durability for each grade is defined as the time for which the elongation drops to one half of its initial value in a high temperature aging test.

• 

• Test piece

  JIS #3 dumbbell

  Thickness 2mm

Applications

• Applications：CVJ Boots

  Advantages：Resistance to flexural fatigue
  and suitibility for blow molding

  

• Applications：Accelerator pedal

  Advantages：Resistance to flexural fatigue
  and good appearance

  

• Applications：Cable Jackets

  Advantages：Thermal Resistance
  and flexibility

  

• Applications：Noiseless gears

  Advantages：Noise Reduction
  and Good Moldability

  

• Applications：Moisture permeable film

  Advantages：Moisture Permeability
  and Flexibility

  

• Applications：Hot curler

  Advantages：Thermal Resistance
  and Flexibility

  

• Applications：Curl dryer

  Advantages：Thermal Resistance
  and Flexibility

  

• Applications：Fuel gas cap tether

  Advantages：Flexibility
  and Chemical resistance

  

• Applications：Mascara Brush

  Advantages：Flexibility
  and Fluidity

  

• Applications：Gear shift parts

  Advantages：Thin-wall molding
  and Abrasion resistance

  

PELPRENE™ can be used for injection, extrusion, and blow molding using conventional equipment. It's also compatible with compression molding, melt casting, and rotational molding. Additionally, PELPRENE™ can be post-processed by painting, printing, vacuum metallizing, and cathode spattering, along with hot-melt adhesion of molded articles. Its pellets being applies packed in a moisture-proof bag after drying, PELPRENE™ can be processed as received. However, unused or dampened pellets should be dried again for 4 or more hours at 100-120°C before use.

Injection Molding Troubleshooting

Safety

• ●Molding operation

• When purged resin contains a large quantity of gas or steam, the resin may have been insufficiently dried. We recommend re-drying the resin.
• Resin held in the cylinder for an extended period of time may lose viscosity or experience other impacts on quality. Please resume molding only after thoroughly replacing the resin that has been held too long in the cyliner with new resin.
• When switching from PELPRENE™ to another polymer, replace the PELPRENE™ with polyethylene or polypropylene to purge. Local and general ventilation are recommended.
• Keep hands and face away from the nozzle during molding to prevent burn injury.
• Please ensure proper ventilation, as a small amount of gas and fine dust may be produced during molding.

• ●Protective equipment

• Wear appropriate protective equipment such as protective clothing, safety glasses, and gloves to protect eyes and skin from the molten resin.

• ●Emergency response

• Should molten resin adhere to the skin, cool the area immediately with cold water or an ice pack and then seek medical attention. Do not attempt to peel the resin off of the skin.

• ●Other

• Do not let molten resin touch electric wires or hoses.
• Molten resin reaches high temperatures and can catch fire if it forms large clumps when purging. Break up large clumps and allow to cool before disposal.
• Spilled pellets can be a slipping hazard, so be sure to clean them off the floor immediately.