Fibers and fabrics prepared with propylene impact copolymers
AssigneeExxon Mobil Chemical Patents Inc.
InventorsDina Marie Colucci, Chia Yung Cheng, William Michael Ferry, Don Allen Plank
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Abstract
This invention relates generally to novel fibers and fabrics. Specifically, these fibers are prepared using propylene impact copolymer compositions. Fabrics, particularly nonwoven fabrics, formed from these fibers exhibit improved elongation properties.
Claims18
Nonwoven fabric composed of fibers prepared from reactor produced propylene impact copolymer composition comprising:
- (a) from about 60% to about 90% by weight Component A based on the total weight of the impact copolymer, Component A comprising propylene homopolymer;
- and
- (b) from about 10% to about 40% by weight Component B based on the total weight of the impact copolymer, Component B consisting essentially of propylene and from about 20% to about 80% by weight ethylene.
Spunbond fabric composed of fibers prepared from reactor produced propylene impact copolymer composition comprising:
- (a) from about 60% to about 90% by weight Component A based on the total weight of the impact copolymer, Component A comprising propylene homopolymer;
- and
- (b) from about 10% to about 40% by weight Component B based on the total weight of the impact copolymer, Component B comprising propylene/comonomer copolymer wherein the copolymer comprises from about 20% to about 70% by weight propylene and from about 30% to about 80% by weight comonomer.
Spunbond fabric composed of fibers prepared from reactor produced propylene impact copolymer composition comprising:
- (a) from about 60% to about 90% by weight Component A based on the total weight of the impact copolymer, Component A comprising propylene homopolymer;
- and
- (b) from about 10% to about 40% by weight Component B based on the total weight of the impact copolymer, Component B comprising propylene/comonomer copolymer wherein the copolymer comprises from about 30% to about 60% by weight propylene and from about 40% to about 70% by weight comonomer.
Meltblown fabric comprising fibers prepared from reactor produced propylene impact copolymer composition comprising:
- (a) from about 60% to about 90% by weight Component A based on the total weight of the impact copolymer, Component A comprising propylene homopolymer;
- and
- (b) from about 10% to about 40% by weight Component B based on the total weight of the impact copolymer, Component B consisting essentially of propylene and from about 20% to about 80% by weight ethylene.
Dependencies are inferred from the claim text.