The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2024
Filed:
Mar. 27, 2019
Applicant:
Mitsubishi Paper Mills Limited, Tokyo, JP;
Inventor:
Yoshiyuki Hamasaki, Tokyo, JP;
Assignee:
MITSUBISHI PAPER MILLS LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 27/00 (2006.01); C09K 5/14 (2006.01); D21H 11/04 (2006.01); D21H 17/66 (2006.01); D21H 21/22 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
D21H 27/00 (2013.01); C09K 5/14 (2013.01); D21H 11/04 (2013.01); D21H 17/66 (2013.01); D21H 21/22 (2013.01); F28D 21/0015 (2013.01);
Abstract
An object of the present invention is to provide a paper for total heat exchange element, which has both of the heat transfer property and the moisture permeation property and is also excellent in the gas barrier property, and the present invention relates to a paper for total heat exchange element including a base paper containing a beaten natural pulp and a hygroscopic agent applied to the base paper, wherein a ratio of a fine fraction having a fiber length of 0.05 mm or less in the beaten natural pulp is from 10 to 25%.