High linear density, high modulus, high tenacity yarns and...

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

Reexamination Certificate

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Details

C428S401000, C428S036200, C264S184000, C264S203000, C264S103000

Reexamination Certificate

active

07976943

ABSTRACT:
The present invention relates to a yarn, comprising (a) a plurality of fibers having an orientation angle of no more than 8.0 degrees and made of a para-aramid having an inherent viscosity of 5.2 to 6.2 dl/g, (b) a linear density of at least 2666 dtex (2400 denier), (c) a modulus of at least 810 grams per dtex (900 grams per denier), and (d) a tenacity of at least 18 grams per dtex (20 grams per denier). The invention further relates to methods of making such yarn.

REFERENCES:
patent: 3094511 (1963-06-01), Hill, Jr. et al.
patent: 3354127 (1967-11-01), Hill, Jr. et al.
patent: 3673143 (1972-06-01), Bair et al.
patent: 3819587 (1974-06-01), Kwoleck
patent: 3869429 (1975-03-01), Blades
patent: 3869430 (1975-03-01), Blades
patent: 4172938 (1979-10-01), Mera et al.
patent: 4298565 (1981-11-01), Yang
patent: 4340559 (1982-07-01), Yang
patent: 5001219 (1991-03-01), Chern et al.
patent: 5151142 (1992-09-01), Imai et al.
patent: 5175239 (1992-12-01), Gauntt et al.
patent: 5478648 (1995-12-01), Stein et al.
patent: 5674615 (1997-10-01), Neuert et al.
patent: 0 423 703 (1991-04-01), None
patent: WO 95/04174 (1995-02-01), None
patent: WO 2007/004851 (2007-01-01), None
Leroy E. Alexander, “X-Ray Diffraction Methods in Polymer Science”, Wiley Interscience (1969) Chapter 4, p. 264.
W,B, Black et al., Man-Made Fibers, Science and Technology, vol. 2, Section titled “Fiber-Forming Aromatic Polyamides”, p. 297, Interscience Publishers (1968).
H. H. Yang, Kevlar Aramid Fiber, Kevlar Aramid Fiber, Chichester, Wiley & Sons, GB, pp. 28/29, XP002098773, p. 28, paragraph 2.5; table 2.2.

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