Polypore Announces Settlement and License Agreement With Sumitomo Chemical

Polypore Announces Settlement and License Agreement With Sumitomo Chemical

CHARLOTTE, N.C., Dec. 27, 2013 (GLOBE NEWSWIRE) -- Polypore International,
Inc. (NYSE:PPO) and Sumitomo Chemical Co., Ltd. have entered into a Settlement
and License Agreement which ends all outstanding worldwide litigation between
the two companies related to Polypore's intellectual property rights on
battery separator coating. Under the License Agreement, Sumitomo Chemical has
licensed Polypore's intellectual property related to coating separators for
lithium-ion batteries. The financial terms of the Agreement include an
up-front payment to Polypore as well as recurring royalties.

"This agreement confirms the integrity of our intellectual property around
ceramic coating of separators for lithium-ion batteries. In addition to the
financial consideration of the licensing arrangement, we are pleased that this
agreement establishes the opportunity for Polypore and Sumitomo to work
together to address growing market needs, which we expect to benefit both
companies," said Robert Toth, President and Chief Executive Officer of
Polypore. "As interest in coated separator solutions continues to grow, we
believe that the combined strength of our intellectual property, Sumitomo's
technical expertise in coating and the exceptional performance characteristics
of our separator material create an attractive solution for meeting the growth
needs of existing and future customers."

About Polypore International, Inc.

Polypore International, Inc. is a global high technology filtration company
specializing in microporous membranes. Polypore's flat sheet and hollow fiber
membranes are used in specialized applications that require the removal or
separation of various materials from liquids, primarily in the ultrafiltration
and microfiltration markets. Based in Charlotte, NC, Polypore International,
Inc. is a market leader with manufacturing facilities or sales offices in nine
countries serving six continents. See www.polypore.net.

Forward-Looking Statements

This release contains statements that are forward-looking in nature.
Statements that are predictive in nature, that depend upon or refer to future
events or conditions or that include words such as "expects," "anticipates,"
"intends," "plans," "believes," "estimates," and similar expressions are
forward-looking statements. These statements involve known and unknown risks,
uncertainties and other factors that may cause our actual results and
performance to be materially different from any future results or performance
expressed or implied by these forward-looking statements. These factors
include the following: the highly competitive nature of the markets in which
we sell our products; the failure to continue to develop innovative products;
the loss of our customers; the vertical integration by our customers of the
production of our products into their own manufacturing process; increases in
prices for raw materials or the loss of key supplier contracts; our
substantial indebtedness; interest rate risk related to our variable rate
indebtedness; our inability to generate cash; restrictions related to the
senior secured credit agreement; employee slowdowns, strikes or similar
actions; product liability claims exposure; risks in connection with our
operations outside the United States, including compliance with applicable
anti-corruption laws; the incurrence of substantial costs to comply with, or
as a result of violations of, or liabilities under, environmental laws; the
failure to protect our intellectual property; the loss of senior management;
the incurrence of additional debt, contingent liabilities and expenses in
connection with future acquisitions; the failure to effectively integrate
newly acquired operations; lithium market demand not materializing as
anticipated; the absence of expected returns from the intangible assets we
have recorded; the adverse impact from legal proceedings on our financial
condition; and natural disasters, epidemics, terrorist acts and other events
beyond our control. Additional information concerning these and other
important factors can be found in Item 1A. "Risk Factors" of our most recent
Annual Report on Form 10-K and subsequent reports filed with the Securities
and Exchange Commission. Such forward-looking statements speak only as of the
date of this press release. Polypore expressly disclaims any obligation to
release publicly any updates or revisions to any forward-looking statements
contained herein to reflect any change in Polypore's expectations with regard
thereto or change in events, conditions or circumstances on which any
statement is based.

CONTACT: Polypore International, Inc.
         Corporate Communications
         Beth Kitteringham
         (704) 587-8596
         Investor Relations
         Paul Clegg
         (704) 587-8886

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