Rexford A Maugans

6436534, Aug 20, 2002

Jul 16, 2001

09/906440

George W. Knight - Lake Jackson TX
Edward N. Knickerbocker - Lake Jackson TX
Rexford A. Maugans - Lake Jackson TX

The Dow Chemical Company - Midland MI

D02G 332

428365, 428364, 428373, 428374, 428500, 428516, 526348, 525240

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).

6448355, Sep 10, 2002

Jul 30, 1996

08/688416

George W. Knight - Lake Jackson TX
Rexford A. Maugans - Lake Jackson TX
Edward N. Knickerbocker - Lake Jackson TX

The Dow Chemical Company - Midland MI

C08F 1002

526348, 5263481, 5263482, 5263483, 5263484, 5263485, 5263486, 526352

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).

6482895, Nov 19, 2002

Jun 15, 2001

09/882673

Rexford A. Maugans - Lake Jackson TX
Kenneth B. Stewart - Lake Jackson TX
Edward N. Knickerbocker - Lake Jackson TX

Dow Global Technologies Inc. - Midland MI

C08F 800

525191, 525240, 1621574, 428373, 428375

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.

6482896, Nov 19, 2002

Aug 27, 2001

09/940125

Rexford A. Maugans - Lake Jackson TX
Edward N. Knickerbocker - Lake Jackson TX
Kenneth B. Stewart - Lake Jackson TX

Dow Global Technologies Inc. - Midland MI

C08L 2300

525191, 524240

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.

6559208, May 6, 2003

May 27, 1999

09/321370

Thoi H. Ho - Lake Jackson TX
Edward N. Knickerbocker - Lake Jackson TX
Rexford A. Maugans - Lake Jackson TX

Dow Global Technologies Inc. - Midland MI

C08K 555

524186, 524236, 524251, 428500, 428515

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.

6773810, Aug 10, 2004

Jul 15, 2002

10/195279

Ashish Sen - Midland MI
John Klier - Midland MI
Rexford A. Maugans - Lake Jackson TX
Kenneth Stewart, Jr. - Lake Jackson TX

Dow Global Technologies Inc. - Midland MI

D01F 800

428370, 428373, 428374

The elasticity of elastic, absorbent structures, e. g. , diapers, is improved without a significant compromise of the absorbency of the structure by the use of bicomponent and/or biconstituent elastic fibers. The absorbent structures typically comprise a staple fiber, e. g. , cellulose fibers, and a bicomponent and/or a biconstituent elastic. The bicomponent fiber typically has a core/sheath construction. The core comprises an elastic thermoplastic elastomer, preferably a TPU, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer. In various embodiments of the invention, the elasticity is improved by preparation techniques that enhance the ratio of elastic fiber:cellulose fiber bonding versus cellulose fiber:cellulose fiber bonding. These techniques include wet and dry high intensity agitation of the elastic fibers prior to mixing with the cellulose fibers, deactivation of the hydrogen bonding between cellulose fibers, and grafting the elastic fiber with a polar group containing compound, e. g. maleic anhydride.

6777082, Aug 17, 2004

Dec 6, 2001

10/006082

Rajen M. Patel - Lake Jackson TX
Pak-Wing S. Chum - Lake Jackson TX
Stephen F. Hahn - Midland MI
Leonie K. Walsh - Houston TX
Rexford A. Maugans - Lake Jackson TX
Selim Bensason - Houston TX
Thoi H. Ho - Lake Jackson TX
Calvin P. Esneault - Baton Rouge LA

The Dow Chemical Company - Midland MI

C08L 5300

428364, 428365, 428375, 525 88, 525 92 R, 525 92 C, 525 89, 525 93, 525 98, 525 99

The present invention relates to a fiber produced form a composition comprising at least one hydrogenated block copolymer and, optionally, at least one other polymer selected from the group consisting of a reactive tailored liquid polyurethane, an elastomeric or sulfonated ethylene/vinyl aromatic interpolymer, an elastomeric ethylene/C -C -olefin interpolymer, an C -C -olefin/conjugated diene interpolymer, an elastic polypropylene polymer, an enhanced polypropylene polymer, an elastomeric thermoplastic polyurethane, an elastic copolyester, a partially hydrogenated block copolymer, an elastic polyamide, a hydroxyl functionalized polyether (or polyetheramine), a styrene/conjugated diene interpolymer, and an elastomeric metallocene-catalyzed synthetic polymer or a blend or formulated system thereof.

6811871, Nov 2, 2004

Mar 12, 2004

10/799168

Ashish Sen - Midland MI
John Klier - Midland MI
Rexford A. Maugans - Lake Jackson TX
Kenneth Stewart, Jr. - Lake Jackson TX

Dow Global Technologies Inc. - Midland MI

D01F 600

428357, 428362, 428373

The elasticity of elastic, absorbent structures, e. g. , diapers, is improved without a significant compromise of the absorbency of the structure by the use of bicomponent and/or biconstituent elastic fiber. The absorbent structures typically comprise a staple fiber, e. g. , cellulose fibers, and a bicomponent and/or a biconstituent elastic. The bicomponent fiber typically has a core/sheath construction. The core comprises an elastic thermoplastic elastomer, preferably a TPU, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer. In various embodiments of the invention, the elasticity is improved by preparation techniques that enhance the ratio of elastic fiber:cellulose fiber versus cellulose fiber:cellulose fiber bonding. These techniques include wet and dry high intensity agitation of the elastic fibers prior to mixing with the cellulose fibers, deactivation of hydrogen bonding between cellulose fibers, and grafting the elastic fiber with a polar group containing compound, e. g. maleic anhydride.