Dow Global Technolgoies LLC

Dow Global Technology Inc.

Hong Peng

Andy Cheng Chang

Antonios K Doufas

Yunwa Wilson Cheung

Rajen M Patel

Hongyu Chen

Shih-Yaw Lai

Yuen-Yuen D Chiu

Charles F Diehl

Jodi M Mecca

Benjamin C Poon

Ashish Sen

Edward N Knickerbocker

Ronald J Weeks

Varunesh Sharma

Joy Francine Jordan

Renette E Richard

Christian Lee Sanders

Stephen M Englebert

Jozef J I Van Dun

Randy E Pepper

Eddy I Garcia-Meitin

Bryon Paul Day

Seema V Karande

Calvin P Esneault

Lizhi Liu

Byron P Day

Bryon P Day

Josef J I Van Dun

Josef JI Van Dun

Eddy Garcia-Meitin

Nathan A Malowinski

Timothy J Pope

Hoang Pham

Jozef JI Van Dun

Yeun-Yuen D Chiu

A fiber is obtainable from or comprises a blend of a propylene based polymer and an ethylene/&#x3b1;-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re&#x3e;1481&#x2212;1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven, knitted or non-woven fabrics can be made from such fibers.

Fibers made from copolymers of ethylene/&#x3b1;-olefins

A fiber is obtainable from or comprises an ethylene/&#x3b1;-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re&#x3e;1481&#x2212;1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.

A fiber is obtainable from or comprises an ethylene/&#x3b1;-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and () cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re&#x3e;1481&#x2212;1629(). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.

This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type resin.

Compositions of ethylene/alpha-olefin multi-block interpolymer for elastic films and laminates

A fiber is obtainable from or comprises a propylene/&#x3b1;-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re&#x3e;1481-1629 (d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.

Fibers made from copolymers of propylene/&#x3b1;-olefins

The invention is an article comprising at least two layers, a low crystallinity layer and a high crystallinity layer. One or both layers is capable of being elongated so that a pre-stretched article is capable of being formed.

Multi-layer, elastic articles

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

Compositions of ethylene/&#x3b1;-olefin multi-block interpolymer for elastic films and laminates

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

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Lake Jackson, TX, United States of America

Hong Peng