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. 23, 2021
Filed:
Dec. 19, 2017
Tetra Laval Holdings & Finance S.a., Pully, CH;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
A package for pourable food products and method for moulding a polymeric opening portion to a packaging sheet material is provided. The package can include an opening portion and a weakening feature. In some embodiments, the opening portion can be made of a polymer composition. In some embodiments, the weakening feature has a thickness below 200 micrometers and is thinner than parts of the opening portion directly adjacent to said weakening feature. The polymer composition can include sodium sulphite particles. In some embodiments, the sodium sulphite particles have the following size characteristics: (i) 0% having a size above 75 micrometers, and (ii) an average size below 25 micrometers.