Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2006-01-31
2006-01-31
Edwards, N. (Department: 1774)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C057S243000, C442S216000, C280S805000
Reexamination Certificate
active
06991850
ABSTRACT:
An improved load leveling yarn has a force-displacement profile that maintains desirable properties of previously known yarns (as exemplified in U.S. Pat. No. 5,830,811), but exhibits a lower elongation at a stress that is greater than the IBS but less than or equal to 1.8 grams/denier. Especially preferred yarns are produced from PET with an IV of greater than 0.9 and epsilon caprolactone (at a ratio of about 90:10) under copolymerization conditions that allow reaction of at least 95% of the added epsilon caprolactone. Such yarns can then be formed into a web to form specific products, and especially seat belts.
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Giovannetti Tony L.
Hurst David A.
Trask Craig A.
Edwards N.
Performance Fibers, Inc.
Rutan & Tucker LLP
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