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. 06, 2023
Filed:
Mar. 24, 2016
Applicant:
Sumitomo Seika Chemicals Co., Ltd., Hyogo, JP;
Inventors:
Assignee:
SUMITOMO SEIKA CHEMICALS CO., LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 81/26 (2006.01); B65D 33/01 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B65D 65/38 (2006.01); B65D 77/04 (2006.01); B65D 88/74 (2006.01);
U.S. Cl.
CPC ...
B65D 81/264 (2013.01); B01J 20/26 (2013.01); B01J 20/28004 (2013.01); B65D 33/01 (2013.01); B65D 65/38 (2013.01); B65D 77/04 (2013.01); B65D 88/74 (2013.01);
Abstract
A packaging bag for packaging water-absorbent resin powder includes a resin sheet with gas barrier properties which is formed in a bag shape having a charge opening for charging the water-absorbent resin powder into the packaging bag. At least one resin sheet piece of the resin sheet is provided with an incision penetrating the resin sheet piece in a thickness direction thereof, the incision having a dimension not larger than a predetermined length according to a mass median particle size of the water-absorbent resin powder.