Modification of drawn film

Details Modification of drawn film Modification of drawn film

2002-05-13

2011-12-20

Menon, Krishnan S (Department: 1777)

Liquid purification or separation

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Material

C210S500250, C210S500360, C210S502100

Reexamination Certificate

active

08079480

ABSTRACT:
The Invention relates to a drawn polymer film, comprising (A) a polymer or polymer blend and at least (B) one additional component with an average particle diameter of between 0.1 and 15 μm, which by means of (C) one or several secondary treatment steps is processed to form a membrane after being drawn. The average particle diameter of component (B) ranges between 0.1 and 15 μm, preferably 0.5-8.0 μm, with the range between 1.0 and 7.0 μm being particularly preferred. The membranes are used for alkene-alkane separation, electrodialysis, the desalinisation of seawater, in fuel cell applications and other membrane applications.

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Derwent Abstract Acc-No. 1999-288712, “Inorganic particle filled polymer separation membrane”, Tianjin Textile Eng. (cited as “x” reference in the PCT application.

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