Synthetic turf

Details Synthetic turf Synthetic turf

2008-07-15

2008-07-15

Juska, Cheryl (Department: 1794)

Stock material or miscellaneous articles

Pile or nap type surface or component

Particular shape or structure of pile

C428S097000, C428S087000, C428S017000, C428S377000, C057S210000, C057S236000

Reexamination Certificate

active

07399514

ABSTRACT:
The present invention provides new types of synthetic turf. The synthetic turf includes a pile fabric having a backing (1) and tufts (2) projecting therefrom. In one embodiment, at least a number of the tufts are made of a composite yarn formed by at least one fibrillated yarn (6) together with a number of individual filament yarns (7), in particular with so-called monofilament or monotape yarns. The fibrillated yarn and the individual filament yarns are preferably made of polyethylene so that the synthetic turf is sliding-friendly. In another embodiment, at least a number of the tufts are made of a composite yarn formed by monotape yarns twisted together with a number of the monofilament yarns. The monofilament and monotape yarns are preferably made of polyethylene so that the synthetic turf is sliding-friendly. The combination of a fibrillated yarn and individual filament yarns or the combination of monofilament and monotape yarns in a composite yarn allows immediate achievement of the look of natural grass, that is, without post-fibrillation, and avoids any visible difference in wear pattern between the different types of yarns. In another embodiment, the invention also provides improved particulate material for use as infill material for top-dressing a synthetic turf.

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International Search Report dated Jul. 30, 2004.

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