초록 ▼

Non-woven fabrics suitable for use as carpeting and the like are produced by needlepunching staple length monofilament fibers having an elastic modulus of from 5,000 to 60,000 psi. The fibers are also characterized by an area moment of inertia of from 400×1014 to 7,000×1014 in4 and a stiffness param

Non-woven fabrics suitable for use as carpeting and the like are produced by needlepunching staple length monofilament fibers having an elastic modulus of from 5,000 to 60,000 psi. The fibers are also characterized by an area moment of inertia of from 400×1014 to 7,000×1014 in4 and a stiffness parameter of from 1×10-5 to 1×10-8 lb-in2.

대표청구항

A non-woven, needle punched fabric comprising staple length, polymeric monofilament fibers, said fibers having an elastic modulus in the range of 5,000 to 60,000 psi, an area moment of inertia of from 400×10-14 to 7,000×10-14 in4 and a stiffness parameter of from 1×10-5 to 1×10-8 lb-in2.

A non-woven, needle punched fabric comprising staple length, polymeric monofilament fibers, said fibers having an elastic modulus in the range of 5,000 to 60,000 psi, an area moment of inertia of from 400×10-14 to 7,000×10-14 in4 and a stiffness parameter of from 1×10-5 to 1×10-8 lb-in2.