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:
Jul. 23, 2019
Filed:
Oct. 10, 2018
Toppan Printing Co., Ltd., Tokyo, JP;
Akiko Saiki, Tokyo, JP;
Kosuke Shimizu, Tokyo, JP;
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Abstract
A paper cup includes barrier paper, the barrier paper including at least a paper base material, a reinforcing layer containing cellulose nanofibers which is formed on the paper base material, and a sealant layer formed on the reinforcing layer, in which after the paper cup is caused to free-fall 5 times towards a concrete floor surface from a height of 1 m with the bottom portion being disposed downward, the paper cup has a buckling strength of 350 N or more in a case of being sandwiched between two parallel plate surfaces and compressed in a height direction of the body portion, and has a lateral pressing strength of 4 N or more in a case where the body portion is pressed by 10 mm at a ⅔ height, from a bottom, of the entire height of the paper cup.