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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10391739 B1

PDFFull Text
Date of Patent:
Aug. 27, 2019

Filed:

Oct. 04, 2012

Bi-component fiber and fabrics made therefrom

Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Barbara Bonavoglia, Zurich, CH;

Gert J. Claasen, Richterswil, CH;

Jacquelyn A. Degroot, Sugar Land, TX (US);

Selim Bensason, Rueschlikon, CH;

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:
Primary Examiner:

Shawn Mckinnon

Int. Cl.
CPC ...
D01F 8/06 (2006.01); D04H 13/00 (2006.01); B32B 5/26 (2006.01); B32B 5/24 (2006.01); D01F 6/04 (2006.01); B32B 5/02 (2006.01); D04H 1/4291 (2012.01); D04H 3/007 (2012.01); D04H 3/16 (2006.01);
U.S. Cl.
CPC ...
B32B 5/26 (2013.01); B32B 5/022 (2013.01); B32B 5/24 (2013.01); D01F 6/04 (2013.01); D01F 8/06 (2013.01); D04H 1/4291 (2013.01); D04H 3/007 (2013.01); D04H 3/16 (2013.01); D04H 13/00 (2013.01); Y10T 428/2929 (2015.01); Y10T 442/291 (2015.04); Y10T 442/637 (2015.04); Y10T 442/66 (2015.04); Y10T 442/681 (2015.04);
Abstract

The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more α-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.920 to 0.970 g/cm, a melt index (I) in the range of from 10 to 40 g/10 minutes, a molecular weight distribution (M/M) in the range of from 1.8 to 3.0, and a molecular weight distribution (M/M) in the range of from less than 2; and wherein said bi-component fiber has a denier per filament in the range of from 0.5 to 10 g/9000 m.

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