Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 17, 2008
Patent Application Number
11399450
Date Filed
April 7, 2006
Patent Primary Examiner
Patent abstract
The present invention provides a thermoplastic polyurethane composition which comprises an ethylene-vinyl alcohol copolymer and/or a polyamide, and a thermoplastic polyurethane, in which the retention of melt tension thereof, when kept in a molten state at 220° C. for 1 hour, determined by the following equation (1), is not less than 10%.Retention of melt tension (%)=[Melt tension after being kept in a molten state/Melt tension before being kept in a molten state]×100 (1)
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