Fibers, yarns and fabrics of low modulus polymer
AssigneeBrunswick Corporation
InventorJoseph C. Benedyk
Life of this patent
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Abstract
Fibers, yarns and fabrics are produced from polymers, such as the copolymers of ethylene and vinyl acetate, 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.times.10.sup.-14 to 7,000.times.10.sup.-14 in.sup.4 and a stiffness parameter of from 1.times.10.sup.-5 to 1.times.10.sup.-8 lb-in.sup.2. Multiple fibers are spun into yarn, preferably cross-linked either chemically or by irradiation and are formed into pile fabrics for carpeting and similar uses. The pile fabric preferably has a minimum of 4,000 fibers per in.sup.2 of backing and a minimum pile height of 1/8 inch.
Claims63
A monofilament fiber of polymeric material characterized by:
- (a) an elastic modulus of from 5,000 to 60,000 psi,
- (b) an area moment of inertia of from 400.times.10.sup.-14 to 7,000.times.10.sup.-14 in.sup.4, and
- (c) a stiffness parameter of from 1.times.10.sup.-5 to 1.times.10.sup.-8 lb-in.sup.2.
Yarn comprising a continuous strand of multiple monofilament fibers of polymeric material, said polymeric material characterized by:
- (a) an elastic modulus of from 5,000 to 60,000 psi,
- (b) an area moment of inertia of from 400.times.10.sup.-14 to 7,000.times.10.sup.-14 in .sup.4, and
- (c) a stiffness parameter of from 1.times.10.sup.-5 to 1.times.10.sup.-8 lb-in.sup.2.
A pile fabric comprising a backing and yarns secured to the backing and extending outwardly therefrom, the yarns comprising a strand of multiple monofilament fibers of polymeric material, said polymeric material characterized by an elastic modulus of from 5,000 to 60,000 psi, an area moment of inertia of from 400.times.10.sup.-14 to 7,000.times.10.sup.-14 in.sup.4, and a stiffness parameter of from 1.times.10.sup.-5 to 1.times.10.sup.-8 lb-in.sup.2.
Dependencies are inferred from the claim text.