Multi-layer tube and process of making the same

US10173359B2 · kind B2 · utility

Assignee

• Berry Plastics Corporation · US

Inventors

• David Dezhou Sun · Evansville, US
• Philip A. Driskill · Newburgh, US
• Jeffrey C. Minnette · Evansville, US
• Birju A. Surti · Ronks, US
• Jonathan K Williams · Lancaster, US
• Tony Cain · Spottsville, US
• Diane E. Marret · Newburgh, US
• Jared B. Waterman · Evansville, US
• Dan L Mackey · Henderson, US
• Debra R. Wilson · Houston, US
• Timothy Ponrathnam · Evansville, US

Key dates

• Filing date: Mar 4, 2016
• Grant date: Jan 8, 2019
• Expiry date: Dec 11, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2423/06
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A vessel is configured to hold a product in an interior region formed in the vessel. The vessel includes an inner layer arranged to define the interior region and an outer layer. The vessel is formed using a blow-molding process in which a multi-layer parison is blow molded to form the vessel. The multi-layer parison is formed in an extrusion process in which a number of extruders are arranged to co-extrude associated inner and outer parisons to establish the multi-layer parison.