Title:
改善された繊維不織ウェブ
Document Type and Number:
Japanese Patent JP4571504
Kind Code:
B2
Abstract:
New nonwoven fibrous webs are taught which comprise a collected mass of a) directly formed fibers disposed within the web in a C-shaped cross-sectional configuration and b) staple fibers having a crimp of at least 15% dispersed among the directly formed fibers in an amount of at least 5% the weight of the directly formed fibers. The web is lofty but free of macrovoids. Preferably, the web has a filling ratio of at least 50 and a light transmittance variation of about 2% or less. Typically, fibers within the web are bonded together at points of fiber intersection, preferably with autogenous bonds, to provide a compression-resistant matrix. The webs are especially useful as acoustic and thermal insulation.
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Inventors:
David A Olson
Jonathan H. Alexander
Michael Earl Veligan
Jonathan H. Alexander
Michael Earl Veligan
Application Number:
JP2004553428A
Publication Date:
October 27, 2010
Filing Date:
September 25, 2003
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
D04H5/08; D04H1/00; D04H3/02; D04H3/16
Domestic Patent References:
| JP56068152A | ||||
| JP54147273A | ||||
| JP53041577A |
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Muneo Yamamoto
Masaishi Nishishita
Yuko Goto
Takuji Yamada
Muneo Yamamoto
Masaishi Nishishita
Yuko Goto