Gregory P Weeks

US Patent:

6548166, Apr 15, 2003

Filed:

Sep 28, 2001

Appl. No.:

09/966037

Inventors:

Garret D. Figuly - Wilmington DE
Anthony J. Soroka - Hixson TN
Marc B. Goldfinger - West Chester PA
Rakesh H. Mehta - Hockessin DE
H. Vaughn Samuelson - Chadds Ford PA
Gregory P. Weeks - Hockessin DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

D01F 800

US Classification:

428370, 428373, 428374, 428397, 264172

Abstract:

A stretchable synthetic polymer fiber comprising an axial core formed from an elastomeric polymer, and two or more wings attached to the core and formed from a non-elastomeric polymer, wherein preferably at least one of the wings is mechanically locked with the axial core. The fibers can be used to form garments, such as hosiery. A spinneret pack for producing such fibers is also provided.

US Patent:

6783853, Aug 31, 2004

Filed:

Sep 27, 2002

Appl. No.:

10/256346

Inventors:

Garret D. Figuly - Wilmington DE
Marc B. Goldfinger - West Chester PA
Rakesh H. Mehta - Hockessin DE
H. Vaughn Samuelson - Chadds Ford PA
Anthony J. Soroka - Hixson TN
Gregory P. Weeks - Hockessin DE

Assignee:

Invista North America S.a.r.l. - Wilmington DE

International Classification:

D01F 800

US Classification:

428370, 428373, 428374, 428397

Abstract:

A hetero-composite yarn useful in making garments comprises a combined biconstituent yarn and a companion yarn, wherein the biconstituent yarn comprises an axial core comprising a thermoplastic elastomeric polymer, and a plurality of wings attached to the core and comprising a thermoplastic, non-elastomeric polymer.

US Patent:

20050129905, Jun 16, 2005

Filed:

Sep 25, 2003

Appl. No.:

10/670831

Inventors:

Peter Veenema - Wilmington DE, US
Gregory Weeks - Hockessin DE, US

International Classification:

B32B033/00
B32B003/02

US Classification:

428095000, 428094000, 428093000, 428089000

Abstract:

A pile article having a support strand for attachment to multifilament yarn to form a velour-like pile having loosely entangled filaments in spaced apart monolithic pile rows, a helically wound package of oriented pile articles for shipping and storage, and a pile surface structure comprising pile articles arranged in spaced apart rows on a substrate to form a pile surface that may be flat or moldable, and a method for making a pile surface structure by embedding the pile articles into the backing substrate. The pile surface structures may be usefully employed in automobile mats, carpets and panels.

US Patent:

20060043328, Mar 2, 2006

Filed:

Sep 2, 2004

Appl. No.:

10/932525

Inventors:

Michael Hunt - Wilmington DE, US
Gregory Weeks - Hockessin DE, US
Louise Arrowsmith - Gloucester, GB
Mary Wahlstrom - Waynesboro DE, US

Assignee:

INVISTA S.a.r.l. - Wilmington DE

International Classification:

D06M 23/12
C08L 83/00
B05D 1/00

US Classification:

252008910, 525540000, 525474000, 525453000

Abstract:

A binder system for applying microcapsules to textile materials includes microcapsules in a binder composition. The binder composition includes: (i) a component selected from the group consisting of: an alkoxylated fatty acid amide, alkyl sulfonate salt, an amino-silicone softener, and mixtures thereof; an (ii) a component selected from the group consisted of: a global type wrinkle resistant resin, an imidazole type wrinkle resistant resin, a cationic polyamide, a curable silicone resin, a polyurethane resin, and mixtures thereof. Methods for making the binder system as well as methods for applying the binder system to textile materials are also provided.

US Patent:

59068779, May 25, 1999

Filed:

Mar 5, 1996

Appl. No.:

8/611115

Inventors:

Peter Popper - Wilmington DE
Rashi Akki - New Castle DE
Lap-Tak Andrew Cheng - Newark DE
Carmen Anoish Covelli - Hockessin DE
Sassan Hojabr - Kingston, CA
George Kevork Kodokian - Wilmington DE
Vijayendra Kumar - New Castle DE
James K. Odle - Newark DE
Kalika Ranjan Samant - Hockessin DE
Caroline Tjhen Shibata - Newark DE
Wae-Hai Tung - Greenville DE
Gregory Paul Weeks - Hockessin DE
Paul Wesley Yngve - Chapin SC

Assignee:

E. I. du Pont de Nemours & Co. - Wilmington DE

International Classification:

B32B 302
D02G 300
D02G 336

US Classification:

428 92

Abstract:

This invention provides moisture stable tuftstring carpet assemblies. The pile surface structure comprises a moisture stable backing substrate, a plurality of elongated pile articles each comprising an elongated, moisture stable support strand having bonded thereto a plurality of "U" shaped bundles of multifilament yarn. The pile articles are bonded to the backing substrate. Different backing substrates and support strands may be used.

US Patent:

51340160, Jul 28, 1992

Filed:

Oct 31, 1990

Appl. No.:

7/606651

Inventors:

James E. Geary - Boothwyn PA
Gregory P. Weeks - Hockessin DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B32B 2714

US Classification:

428198

Abstract:

A method of preparing porous fiber reinforced polymer composite sheets has been developed to allow a more efficient preheating of the sheet prior to molding and includes the steps of blending reinforcing fibers with resin matrix forming fibers to form a web. This web is then heated to a temperature wherein the resin matrix forming fibers melt and envelope the reinforcing fibers, taking them together at crossover points. The resultant web can then be directly heated very efficiently for molding. This web is highly porous allowing rapid heating at moderate pressure differentials during subsequent preheat steps. The microstructure created when the resin matrix forming fibers are initially melted further enhances heating capability because the structure retains porosity during the subsequent heating step required for molding. Because the resin matrix forming fibers initially were uniformly blended, a highly uniform distribution of polymeric material within the reinforcing fiber matrix yields molded parts with very uniform properties.

US Patent:

54704090, Nov 28, 1995

Filed:

Jul 25, 1994

Appl. No.:

8/279384

Inventors:

Clifford K. Deakyne - Wilmington DE
Gregory P. Weeks - Hockessin DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

D21F 1102
D21J 106
B29C 5902

US Classification:

156 624

Abstract:

A process for the production of structural and semi-structural composites formed by compressing planar layers of nonwoven preform materials formed from aqueous blends of reinforcing fibers and thin thermoplastic fluoropolymer flake. The flakes have an irregular periphery with microfibrils extending therefrom, having a Canadian Standard Freeness of from 800 to 883. The planar layers which are unconstrained in the in-plane direction are preconsolidated by heating the layer to above the melting point of the fluoropolymer, the applying pressure normal to the plane of the layer causing the fluoropolymer to flow thus orienting the fibers in the plane of the layer. The composites are useful in applications which require higher strength and/or modulus, and where chemical and/or heat resistance is needed, as in chemical processing.

US Patent:

51941066, Mar 16, 1993

Filed:

Feb 10, 1992

Appl. No.:

7/833040

Inventors:

James E. Geary - Boothwyn PA
Gregory P. Weeks - Hockessin DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B32B 516

US Classification:

156 626

Abstract:

A method of preparing porous fiber reinforced polymer composite sheets has been developed to allow a more efficient preheating of the sheel prior to molding and includes the steps of blending reinforcing fibers with resin matrix forming fibers to form a web. This web is then heated to a temperature wherein the resin matrix forming fibers melt and envelope the reinforcing fibers, tacking them together at crossover points. The resultant web can then be directly heated very efficiently for molding. This web is highly porous allowing rapid heating at moderate pressure differentials during subsequent preheat steps. The microstructure created when the resin matrix forming fibers are initially melted further enhances heating capability because the structure retains porosity during the subsequent heating step required for molding. Because the resin matrix forming fibers initially were uniformly blended, a highly uniform distribution of polymeric material within the reinforcing fiber matrix yields molded parts with very uniform properties.