Article having temperature-dependent shape

Details Article having temperature-dependent shape Article having temperature-dependent shape

2007-11-06

2007-11-06

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

C428S034900, C428S212000, C428S364000, C428S370000, C428S374000, C442S362000, C442S364000, C057S244000, C057S238000, C264S173160

Reexamination Certificate

active

10777520

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.

REFERENCES:
patent: 5133917 (1992-07-01), Jezic et al.
patent: 5487943 (1996-01-01), Kozulla
patent: 5582667 (1996-12-01), Gupta et al.
patent: 5762734 (1998-06-01), DeLucia
patent: 5972502 (1999-10-01), Jessee et al.
patent: 6388043 (2002-05-01), Langer et al.
patent: 6395392 (2002-05-01), Gownder
patent: 6420285 (2002-07-01), Newkirk et al.
patent: 6723669 (2004-04-01), Clark et al.
JP 8-311716 machine translation date May 22, 2006.

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