The Dow Chemical Company

Dow Global Technolgoies LLC

George W. Knight

Rexford A. Maugans

Edward N. Knickerbocker

Edward N Knickerbocker

Rexford Allison Maugans

George W Knight

Randy E Pepper

John O Bieser

Stephen P Krupp

Jozef J I Van Dun

Rajen M Patel

Antonios K Doufas

Andy Cheng Chang

Kenneth B Stewart

Hong Peng

Varunesh Sharma

Joy Francine Jordan

Christian Lee Sanders

Renette E Richard

Stephen M Englebert

Mridula Babli Kapur

William James Michie, Jr

Mark Bradley Davis

Bryon Paul Day

Nathan J Wiker

Gert Johannes Claasen

Thoi H Ho

John E Flood

Thomas Allgeuer

Miguel A Prieto Goubert

Lizhi Liu

Karin Katzer

Thomas G Pressly

Byron P Day

Daniel R Bosak

Thomas T Allgeuer

Bryon P Day

William J Michie

Josef J I Van Dun

Josef JI Van Dun

Jozef Van Dun

Jozef JI Van Dun

Fibers made a polyethylene composition, and method of making the same. The polyethylene composition comprises less than or equal to 100 percent by weight of the units derived from ethylene and less than 20 percent by weight of units derived from one or more &#x3b1;-olefin comonomers; wherein said polyethylene composition has a density in the range of 0.930 to 0.960 g/cm, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I) in the range of 1 to 300 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, a shear viscosity in the range of 20 to 250 Pascal-s at 3000 sshear rate measured at 190&#xb0; C., vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition; and wherein the fiber is a monocomponent meltspun fiber.

Fibers made from polyethylene compositions, and method of making the same

The instant invention discloses fibers. The fibers according to the instant invention comprise a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more &#x3b1;-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm, a molecular weight distribution (M/M) in the range of 1.70 to 3.5, a melt index (I) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (M/M) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition.

Polyethylene compositions, method of producing the same, fibers made therefrom, and method of making the same

The present invention relates to soft touch fibers and nonwoven fabrics made from such fibers. The fibers comprise an incompatible polymer system which leads to the soft touch quality. The fibers comprise a mixture of at least two thermoplastic polymers each having different viscosities and wherein the mixture has an interfacial tension from about 0.5 to about 20 mN/m, and wherein the mixture comprises a portion of the fiber surface. The fibers may include from 40-98 percent of a polyolefin continuous phase and from 2 to 60 weight percent of an amorphous thermoplast dispersed phase, such as polystyrene or polyamide.

Fibers formed from immiscible polymer blends

Extensible bicomponent fibers and webs particularly adapted for disposable personal care product component applications. Sheath/core configurations providing desirable feel properties for elastic embodiments when compared with conventional elastic fibers and webs are obtained with specific olefin polymer combinations and sheath configurations.

Extensible and elastic conjugate fibers and webs having a nontacky feel

Fibers that exhibit good elasticity or extensibility and tenacity, and low modulus are prepared from propylene-based copolymers. The propylene-based copolymers comprise at least about 50 weight percent (wt %) of units derived from propylene and at least about 8 wt % of units derived from one or more comonomers other than propylene, e.g., ethylene. Particularly preferred propylene copolymers are characterized as havingC NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity. In one aspect of the invention, fibers are subjected to stress-induced crystallization by subjecting the fiber to tensile elongation during draw.

Propylene-based copolymers, a method of making the fibers and articles made from the fibers

The present invention relates to a method of making improved polyolefinic elastic articles from cured, irradiated or crosslinked amorphous ethylene interpolymers. In particular, the invention relates to a method of making a shaped article (e.g. film or fiber) characterized by improved elevated temperature elasticity as well as washability and dryability. The inventive elastic article comprises a substantially cured, irradiated, or crosslinked (or curable, irradiated or crosslinkable) homogeneously branched ethylene interpolymer characterized as having a density less than 0.90 g/cm and containing at least one nitrogen-containing stabilizer. The improved elastic article of the present invention is particularly suitable for use in applications where good elasticity must be maintained at elevated temperatures and after laundering such as, for example, elastic waist bands of undergarments and other clothing.

Method of making washable, dryable elastic articles

The subject invention is directed to fibers and polymer blend compositions having improved bonding performance. In particular, the subject invention pertains to a multiconstituent fiber comprising a blend of a polypropylene polymer and a high molecular weight (i.e. low melt index or melt flow) ethylene polymer. The subject invention further pertains to the use of the fiber and polymer blend composition which has improved bonding performance in various end-use applications, especially woven and nonwoven fabrics such as, for example, disposable incontinence garments and diapers. The fibers have good spinnability and provide fabrics having improved bond strength and elongation.

Polypropylene/ethylene polymer fiber having improved bond performance and composition for making the same

Polypropylene/ethylene polymer fiber having improved bond performance and composition for marking the same

Elastic fibers and fabrics made from homogeneously branched substantially linear ethylene polymers are disclosed which can be produced on conventional polypropylene or polyethylene fiber or fabric processes. They can be used to produce highly elastic structures that can have recycle compatibility between elastic and non-elastic components. The novel fibers have at least about 50% recovery at 100% strain. The fibers and fabrics are especially useful in making fabricated articles and components thereof (e.g., disposable diapers).

Elastic fibers, fabrics and articles fabricated therefrom

Elastic fibers and fabrics made from homogeneously branched linear ethylene polymers are disclosed. The elastic fibers and fabrics can be used to produce structures that can have recycle compatibility between elastic and non elastic components. The novel fibers have at least about 50% recovery at 100% strain. The fibers and fabrics are especially useful in making fabricated articles and components thereof (e.g., disposable diapers).

Fabrics fabricated from elastic fibers

Elastic fibers

Growing community of inventors

Lake Jackson, TX, United States of America

Edward N Knickerbocker