Law Firm Kirby McInerney LLP Investigating Potential Claims on Behalf of Polypore International, Inc. Stockholders

Kirby McInerney LLP is investigating potential claims against Polypore International, Inc. (“Polypore” or the “Company”) (NYSE:PPO) concerning the proposed acquisition of the Company by Asahi Kasei Corporation (“Asahi”). Under the terms of the proposed transaction, Polypore stockholders will receive $60.50 in cash for each share of Polypore common stock they own. In conjunction with this transaction, Polypore has entered into an agreement with 3M Company (“3M”) (NYSE: MMM) pursuant to which 3M will acquire the Company’s Separations Media segment for cash consideration of approximately $1 billion just prior to the Asahi acquisition.

The investigation concerns whether the Polypore Board of Directors violated its fiduciary duties by agreeing to the proposed transaction and whether the proposed consideration adequately values the Company’s common stock.

If you are a Polypore stockholder and wish to obtain additional information, please contact J. Brandon Walker, Esq. by email at bwalker@kmllp.com, or telephone at (212) 699-1145, Melissa Fortunato, Esq. by email at mfortunato@kmllp.com, or telephone at (212) 699-1141, or toll free at (888) 529-4787, or by filling out this contact form. There is no cost or obligation to you.

Kirby McInerney LLP is a New York-based law firm concentrating in securities, whistleblower, antitrust and consumer litigation. For additional information, please go to www.kmllp.com.