Silo bags with non-uniform thickness and methods of producing

US11939146B2 · kind B2 · utility

Assignees

• DOW GLOBAL TECHNOLOGIES LLC · US
• PBBPolisur S.R.L. · AR

Inventors

• Akanksha Garg · Pearland, US
• Ashishkumar S. Lokhande · Pune, IN
• Pavan Kumar Valavala · Missouri City, US
• Jose Eduardo Ruiz · Saginaw, US
• Maximiliano Zanetti · Olavarría, AR
• Kurt A. Koppi · Midland, US

Key dates

• Filing date: Nov 14, 2019
• Grant date: Mar 26, 2024
• Expiry date: Nov 1, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2571/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Embodiments of the present disclosure are directed to multilayer silo bags that may include a tube comprising at least two layers, a first open end, a second open end, and a first region and a second region disposed between the first and second end. One or more of the at least three layers may comprise an ethylene/alpha-olefin interpolymer having a density of 0.90 g/cc to 0.965 g/cc and an I2 of 0.1 to 6.0 g/10 minutes, a low density ethylene-based polymer having a density of 0.917 g/cc to 0.935 g/cc and an I2 of 0.1 to 2.0 g/10 minutes, or combinations thereof. The first region may have a thickness of at least 10% greater than a thickness of the second region. The first region may have a surface area that is at least 50% of an overall surface area of the multilayer silo bag.