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US 4,913,952 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, said face yarn being embedded into 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.
Claims2
A carpet composite having improved static electricity characteristics which comprises:
- a surface layer comprised of face yarn, said face yarn having been embedded into a backing layer of thermoplastic resin material into which has been uniformly incorporated throughout the entire cross sectional dimension 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.