Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2006-03-21
2006-03-21
Edwards, N. (Department: 1774)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C280S743100
Reexamination Certificate
active
07014914
ABSTRACT:
Airbag cushions manufactured from polyester yarn having certain levels of intrinsic viscosity (IV) and certain specific carboxyl end group (“CEG”) levels perform unexpectedly well in high temperature and high humidity environments for airbag cushion applications. This specification identifies certain polyester yarns and characteristics of such polyester yarns that are necessary to achieve unexpectedly good performance in such high humidity and high temperature applications. A polymeric polyester yarn for airbags, said yarn having a high degree of tenacity even after a long period of exposure to high temperature and high humidity conditions is disclosed. In one aspect of the invention, a polyester yarn having CEG of less than about 60 equivalents/106gram, and more preferably less than about 30 equivalents/106grams, is particularly useful. In another embodiment, a polyester yarn having an IV value of at least about 0.6 performs exhibits superior properties.
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Article from internet; Hyosung Textile; Dec. 24, 2003.
International Standard; ISO 2114:2000(E) Plastics (polyester resins) and paints and varnishes (binders)—Determination of partial acid value and total acid value.
Commonly Owned U.S. Appl. No. 10/041,376; filed Jan. 8, 2002; Entitled: ‘Airbag made from low tenacity yarns’ (Milliken File No. 5287) (copy enclosed).
Current Sara M.
Edwards N.
Milliken & Company
Moyer Terry T.
LandOfFree
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