Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Nonwoven fabric – Including strand or fiber material which is stated to have...
Reexamination Certificate
2005-05-17
2005-05-17
Juska, Cheryl A. (Department: 1771)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Nonwoven fabric
Including strand or fiber material which is stated to have...
C442S221000, C442S286000, C442S301000, C442S370000, C442S381000, C442S394000, C442S400000, C442S401000, C442S408000, C428S131000, C428S304400, C428S323000, C428S372000, C428S500000, C055SDIG003, C307S400000
Reexamination Certificate
active
06893990
ABSTRACT:
A porous polymeric sheet is provided having an electrostatic charge and comprising a zero-three composite of a polymeric matrix and a ferroelectric material dispersed therein. The polymeric component comprises a non-polar thermoplastic polymer, such as a polyolefin, and a second thermoplastic polymer having polar functional units, such as a telomer. The composite material is formed into a porous sheet and is electrically or corona poled to create an electret material which is well suited four use in various filtration, air-masking and dust wipe applications.
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Lassig John Joseph
Midkiff David Grant
Myers David Lewis
Turkevich Leonid Anthony
Ambrose Robert A.
Juska Cheryl A.
Kimberly - Clark Worldwide, Inc.
Kyriakou Christos
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