Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Reshaping – drawing or stretching
Patent
1996-01-23
1998-03-24
Raimund, Christopher
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Reshaping, drawing or stretching
264480, 264484, 264241, 2642888, 2642893, D02J 122
Patent
active
057309230
ABSTRACT:
A method for post-treating a precursor nonwoven web including consolidating the web laterally, thereby reducing the maximum pore size measure of the web and improving the filtration efficiency of the web, and subjecting the consolidated web to an electrostatic field to further enhance filtration efficiency.
REFERENCES:
patent: 5244482 (1993-09-01), Hassenboehler, Jr. et al.
Hassenboehler, Jr. Charles B.
Wadsworth Larry B.
Raimund Christopher
The University of Tennessee Research Corporation
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