About Us

We are the only company in the world focused exclusively on microporous membranes for many different uses and applications.

Polypore, an Asahi Kasei Group Company, has a broad portfolio of microporous membrane products with extensive capabilities utilizing proven proprietary processes and product technologies. The increasing demand for mobile and portable energy around the world continues to be a driving force in our growth.

We capitalize on our synergies and strengths around the world to make our company stronger as a whole and we are proud to employ leading experts and scientists in the industries that we serve.

We manufacture, market, and service our products through 18 manufacturing, sales and service locations through out the Americas, Europe and Asia, with sales relatively balanced across these regions.

The Asahi Kasei Group is a diversified group of companies led by holding company Asahi Kasei Corp., with operations in the material, homes, and health care business sectors. Its electronics operations include a broad range of high-performance energy/electronics materials such as the Hipore™ lithium-ion battery separator, photosensitive dry film used in the production of printed wiring boards, and photomask pellicles used in the production of LCD panels and semiconductors. With more than 30,000 employees around the world, the Asahi Kasei Group serves customers in more than 100 countries. For more information, please visit asahi-kasei.co.jp.