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:
Mar. 31, 2026
Filed:
Feb. 01, 2021
Ahlstrom Oyj, Helsinki, FI;
Bertrand Morales, Saint-Sauveur-de-Bergerac, FR;
John Blanz, Mosinee, WI (US);
AHLSTROM OYJ, Helsinki, FI;
Abstract
The invention relates to drinking U-straws and more particularly to a paper for manufacturing drinking U-straws, which is environmental friendly, bio-degradable and is able to be formed in the shape of a bent straw with an accordion-like structure at the bend. The paper has high water resistance as well as high strength and elongation properties compatible with the intended use. In particular, the paper for forming a U-straw includes: •between 10 and 50 dry wt % of first fibers having a length of between 1.4 mm and 2.5 mm; •between 40 and 80 dry wt % of second fibers having a length of between 0.3 mm and 0.8 mm; and •between 1 and 6 dry wt % of a sizing agent.