US Patent 7569281 Flexible packaging laminate films including a block copolymer layer

Patent 7569281 was granted and assigned to Kraton (polymer) on August, 2009 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Kraton (polymer)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75692810

Patent Inventor Names

Mario G. Umana0

Huan Yang0

Date of Patent

August 4, 2009

Patent Application Number

114083270

Date Filed

April 21, 2006

Patent Primary Examiner

‌

Monique R. Jackson

Patent abstract

What is claimed is a flexible packaging film having improved toughness without compromise of other physical properties. The flexible packaging film is a laminate of at least two film layers of a polyolefin and at least one film layer of a block copolymer. The block copolymer employed in the present invention is a selectively hydrogenated high vinyl block copolymer.

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