Title:
HYGROSCOPIC POLYMER PARTICLES, AS WELL AS SHEET, ELEMENT, AND TOTAL HEAT EXCHANGER HAVING SAID PARTICLES
Document Type and Number:
WIPO Patent Application WO/2015/111610
Kind Code:
A1
Abstract:
[Problem] Conventional coatings having an organic polymer moisture absorbent have a problem in that the percentage content of the organic polymer moisture absorbent is reduced and the hygroscopic performance of the moisture absorbent coating obtained as a result is reduced when an attempt is made to fabricate a coating devoid of cracks caused by swelling and shrinkage. The present invention was devised in view of the current state of prior art, and a purpose thereof is to provide an organic polymer moisture absorbent having coating self-formability, a sheet and element having said moisture absorbent, and a total heat exchange that uses the element. [Solution] It was found that, in hygroscopic polymer particles having a carboxyl group, hygroscopic polymer particles having excellent coating formability can be obtained by using a structure in which the crosslink density differs in the center part and the surface layer part of the particles, and furthermore a hygroscopic coating that does not crack even with a high-percentage content can be obtained by using the hygroscopic polymer particles.
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Inventors:
TAKESHITA YUSHI (JP)
Application Number:
PCT/JP2015/051496
Publication Date:
July 30, 2015
Filing Date:
January 21, 2015
Export Citation:
Assignee:
JAPAN EXLAN CO LTD (JP)
International Classes:
B01D53/28; B01D53/26; B01J20/26; B01J20/30; C08F8/12; F28F21/00
Domestic Patent References:
| WO2011058854A1 | 2011-05-19 |
Foreign References:
| JP2007132614A | 2007-05-31 | |||
| JP2007190546A | 2007-08-02 | |||
| JP2013108057A | 2013-06-06 | |||
| JPH04140139A | 1992-05-14 |
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