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US 4,069,361 AGranted
Woven carpet backing with fused staple fiber needled layer
AssigneeE. I. Du Pont de Nemours and Company
InventorVijayendra Kumar
Life of this patent
Estimating the term…
Abstract
This invention concerns an improved shear resistant backing for pile fabrics prepared by needling a batt of staple fiber into a woven fabric of polypropylene yarn of continuous filaments or ribbons and then bonding the structure by fusion of the staple fiber of the batt.
Claims6
An improved shear-resistant backing for pile fabrics prepared by needling a batt of staple fiber into a woven fabric of polypropylene yarn of continuous filaments or ribbons and then bonding the structure by fusion of the staple fiber of the batt.
Dependencies are inferred from the claim text.