LAMINATED POLYARYLENE SULFIDE HEAT-RESISTANT FILTER

Title:

LAMINATED POLYARYLENE SULFIDE HEAT-RESISTANT FILTER

Document Type and Number:

WIPO Patent Application WO/2017/169687

Kind Code:

A1

Abstract:

The present invention provides a laminated polyarylene sulfide heat-resistant filter at a low cost, the laminated polyarylene sulfide heat-resistant filter having excellent rigidity and wear resistance at high temperatures while having excellent dust-separating and dust-collecting performance. The present invention is a laminated polyarylene sulfide heat-resistant filter comprising a plurality of layers, including at least a first web layer that is a filtering surface, and a second web layer that is a non-filtering surface, said filter characterized in that the first web layer comprises 30-70 wt% of polyarylene sulfide fibers having a fineness of 0.5-1.2 dtex, and 30-70 wt% of polyarylene sulfide fibers having a fineness of 1.3-3.0 dtex (the entirety of the first web layer being 100 wt%), and is further characterized in that the second web layer comprises polyarylene sulfide fibers having fineness of 1.0-4.0 dtex.

Inventors:

MORI TATSUYA (JP)
SUGIMOTO TAKESHI (JP)
MITSUNAGA REO (JP)

Application Number:

PCT/JP2017/009951

Publication Date:

October 05, 2017

Filing Date:

March 13, 2017

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

B01D39/16; B32B5/26; B32B27/00; D04H1/4326; D04H1/4374

Foreign References:

JPH10165729A	1998-06-23
JP2014152407A	2014-08-25
JP2011005860A	2011-01-13
JP2016165666A	2016-09-15
JP2016203124A	2016-12-08

Other References: