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07-29-2019

Noise Reduction and Lightweight Design

Asahi Kasei Develops Polyamide Foam

Asahi Kasei Corp., Tokyo, Japan, is a fully integrated polyamide manufacturer who is able to produce PA 66 completely from monomer to compound. Based on this expertise, the company is currently developing a foam bead material based on polyamide. The material features the typical heat, chemical and oil resistant properties of polyamide, mixed with an outstanding rigidity or noise reducing quality – depending on the shape of the beads.

  • The foam material PA Foam with very good technical properties (© Asahi Kasei)

  • The open-pored foam beads made of polyamide combine good technical properties with acoustic insulation (© Asahi Kasei)

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The so-called PA Foam consisting of round-shaped beads features a strong rigidity, making it an alternative material for aluminum and metal in structural applications, as well as for use for insulators, ducts, spacers, or other lightweight parts of the battery case of electrified vehicles.

Noise Reducing through C- and Macaroni-Shaped Beads

The foam bead material PA Foam with a C- or macaroni-shape provides noise insulation in addition to the typical polyamide properties. Possible applications can be found everywhere around the car, especially in the engine compartment. With Regulation No. 51-031 issued by the United Nations in 2016, the noise level emitted to the outside must be continuously reduced in newly manufactured vehicles.

Used for engine covers, it does not only contribute to lightweight, but also significantly reduces the radiating engine noise, making the car quieter in total. These noise reduction qualities of the foam also contribute to an enhanced comfort inside the car. The PA Foam can serve as insulation and reduction of noise radiating from the car itself, but also to reduce noise coming from the outside. Possible applications can be found in the roof and bonnet, but also in the seat and floor structure.

Foam beads made of polyamide can be processed in a steam molding process on standard polystyrene molding equipment. Furthermore, a significant reduction of resin for the production process can be achieved, contributing to an overall cost reduction.

Additional information
  • 06-24-2019

    European Inventor Award 2019 for Dr. Akira Yoshino

    Asahi Kasei Honorary Fellow Was Honored

    Dr. Akira Yoshino has received the European Inventor Award 2019 by the European Patent Office (EPO) in the category of Non-EPO countries for his invention and refinement of the lithium-ion battery.   more

  • 03-22-2019

    Asahi Kasei Invests 238 Million Euros in Manufacturing Infrastructure

    Rising Demand for Lithium-Ion Battery Separators

    Japanese technology group Asahi Kasei expands its manufacturing infrastructure for lithium-ion battery separators by 450 million sqm to 1.55 billion sqm / year. The group is reacting to the booming demand on the battery market worldwide and the growing needs of customers.   more

Company profile

Asahi Kasei Corporation

1-105 Kanda Jinbocho
TOKYO 101-8101
Tel.: +81 3 3296-3000

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