US 12,077,353 B2
Packaging container and process
Michael McLaughlin, Shawbury (GB); and Christopher Yapp, Llansantffraid (GB)
Assigned to Tri-Locker Limited, Shrewsbury (GB)
Appl. No. 18/257,250
Filed by Tri-Locker Limited, Shrewsbury (GB)
PCT Filed Dec. 14, 2021, PCT No. PCT/EP2021/085785
§ 371(c)(1), (2) Date Jun. 13, 2023,
PCT Pub. No. WO2022/129107, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 2019721 (GB), filed on Dec. 14, 2020.
Prior Publication US 2024/0043163 A1, Feb. 8, 2024
Int. Cl. B65D 5/42 (2006.01); B65D 5/20 (2006.01); B65D 5/64 (2006.01); B65D 65/46 (2006.01); B65D 75/32 (2006.01); B65D 77/20 (2006.01); B65D 81/38 (2006.01)
CPC B65D 5/427 (2013.01) [B65D 5/20 (2013.01); B65D 5/4279 (2013.01); B65D 5/64 (2013.01); B65D 65/466 (2013.01); B65D 75/326 (2013.01); B65D 77/2024 (2013.01); B65D 81/3853 (2013.01); B65D 2565/386 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A liquid-tight packaging container for a product, wherein the liquid-tight packaging container comprises a body, a planar annular element, and a covering wherein:
i) the body is made from cardboard or paperboard and comprises a bottom face, at least one wall upstanding from the bottom face defining a storage compartment for holding the product, and a flange projecting outwardly from a top of the at least one wall;
ii) the annular element is made from card, cardboard, paper or paperboard and is located below the flange and comprises a continuous peripheral strip comprising an inner portion abutting an underside of the flange and an outer portion which extends beyond the periphery of the flange, the outer portion comprising a cold-seal adhesive which comprises a water-based adhesive comprising a natural rubber latex compound; and
the covering is made from card, cardboard, paperboard or paper and overlays the flange and comprises cold-seal adhesive located on the covering so as to be in register with the cold-seal adhesive on the annular element and is bonded to the outer portion of the annular element so as to form a liquid tight seal.