Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Autogenously or by activation of dry coated particles
Reexamination Certificate
2005-04-12
2005-04-12
Cole, Elizabeth M. (Department: 1771)
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Autogenously or by activation of dry coated particles
C264S126000, C264S127000
Reexamination Certificate
active
06878320
ABSTRACT:
An auxetic polymeric material is manufactured in a filamentary or fibrous form. The auxetic polymeric material has a negative Poisson ratio so that it has the property of expanding or contracting transversely to a direction in which it is extended or compressed. The process for forming the material involves cohering and extruding heated polymer powder so that the cohesion and extrusion is effected with spinning to produce auxetic filaments. Typically, the power is heated to a temperature sufficient to allow some degree of surface melting yet not high enough to enable bulk melting.
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Alderson Kim Lesley
Simkins Virginia Ruth
Barlow Josephs & Holmes, Ltd.
Cole Elizabeth M.
The University of Bolton, higher education corporation a UK corp
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