Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven P. Bitler0
Quiang Zheng0
Edward E. Schmitt0
Date of Patent
November 6, 2007
0Patent Application Number
107775200
Date Filed
February 12, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Articles, particularly fibers, whose shape is dependent on temperature. The articles have a first component composed of a sharply-melting crystalline polymer and an overlapping second component. As the crystalline polymer is cooled through its melting range, the volume of the first component increases much more rapidly than the volume of the second component. As a result, the shape of the article changes. Such fibers can be incorporated into fibrous articles having temperature-dependent thermal insulation properties.
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