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US 5,122,404 AGranted
Carpet composites having improved static electricity characteristics
AssigneeMilliken Research Corporation
InventorJames E. Fowler
Life of this patent
Estimating the term…
Abstract
A carpet composite is provided having improved static electricity characteristics which comprises: a surface layer comprised of face yarn, adhered to a backing layer of thermoplastic resin material into which has been incorporated a mixture of carbon black and carbon fibers in an amount sufficient to improve the static electricity characteristics of said carpet composite.
Claims4
A carpet composite having improved static electricity characteristics which comprises:
- a surface layer comprised of face yarn adhered to a backing layer of thermoplastic resin material into which has been uniformly incorporated throughout the cross-section of said backing layer a mixture of carbon black having an average particle size of from about 15 nanometers to about 30 nanometers, and carbon fibers having an average length of from about 0.1 to about 0.2 inch, each of said carbon black and carbon fibers being present in an amount sufficient to improve the static electricity characteristics of said carpet composite.
A carpet composite having improved static electricity characteristics which comprises:
- a surface layer comprised of face yarn provided with anti-static characteristics, said face yarn adhered to a backing layer of thermoplastic resin material into which has been uniformly incorporated throughout the cross section of said backing layer a mixture of from about 0.2 to about 0.4 percent by weight based upon the total weight of the thermoplastic resin backing layer of carbon black particles having an average particle size of from about 15 to about 30 nanometers, and from about 0.4 to about 2 percent by weight based upon the weight of the thermoplastic resin backing layer of carbon fibers having an average length of from about 0.1 to about 0.2 inch.
Dependencies are inferred from the claim text.