Microporous material

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United States of America Patent

PATENT NO 9861719
SERIAL NO

14045824

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Microporous materials that include thermoplastic organic polyolefin polymer (e.g., ultrahigh molecular weight polyolefin, such as polyethylene), particulate filler (e.g., precipitated silica), and a network of interconnecting pores, are described. The microporous materials of the present invention possess controlled volatile material transfer properties. The microporous materials can have a density of at least 0.8 g/cm3; and a volatile material transfer rate, from the volatile material contact surface to the vapor release surface of the microporous material, of from 0.04 to 0.6 mg/(hour*cm2). In addition, when volatile material is transferred from the volatile material contact surface to the vapor release surface, the vapor release surface is substantially free of volatile material in liquid form.

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Patent Owner(s)

  • PPG INDUSTRIES OHIO, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boyer, James L Monroeville, US 25 239
Gardner, Christine Irwin, US 7 51
Knox, Carol L Monroeville, US 22 475
Parrinello, Luciano M Allison Park, US 33 255
Swisher, Robert Pittsburgh, US 19 75

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