Walter H Freeman

US Patent:

6458726, Oct 1, 2002

Filed:

Jul 15, 1999

Appl. No.:

09/353651

Inventors:

James H. Harrington - Stone Mountain GA
Randall E. Kozulla - Social Circle GA
John F. L. Newport - Stone Mountain GA
Edward J. Engle - Conyers GA
Elizabeth L. Fahey - Conyers GA
Walter J. Freeman - Landenberg PA
Rakesh K. Gupta - Conyers GA
Carl J. Wust - Conyers GA

Assignee:

Fiberco, Inc. - Wilmington DE

International Classification:

D02G 100

US Classification:

442364, 428373, 428375, 428394, 442361, 442414, 604358

Abstract:

Process of producing skin-core fibers and the resulting fibers and nonwoven materials and articles wherein the fibers are composed of a polymer blend of a polyolefin and polymeric bond curve enhancing agents, such as ethylene vinyl acetate polymers.

US Patent:

57051194, Jan 6, 1998

Filed:

Feb 7, 1996

Appl. No.:

8/598168

Inventors:

Kunihiko Takeuchi - Conyers GA
Rakesh K. Gupta - Conyers GA
Shiv Sibal - Conyers GA
Richard J. Coffin - Conyers GA
Walter J. Freeman - Landenberg PA

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

D01F 110
D01F 604
D01F 806
D01F 1104

US Classification:

264464

Abstract:

Process and apparatus for spinning polymer filaments permits the obtaining of skin-core filament structure by feeding a polymer composition to a spinnerette at a flow rate sufficient to obtain a spinning speed of about 10 to 200 meters per minute through the spinnerette; heating the polymer composition at a location at or adjacent to the spinnerette so as to heat the polymer composition to a sufficient temperature to obtain a skin-core filament structure upon quenching in an oxidative atmosphere; extruding the heated polymer composition through the spinnerette at a spinning speed of about 10 to 200 meters per minute to form molten filaments; and quenching the molten filaments in an oxidative atmosphere so as to effect oxidative chain scission degradation of at least a surface of the molten filaments to obtain filaments having a skin-core structure.

US Patent:

59851937, Nov 16, 1999

Filed:

Oct 9, 1996

Appl. No.:

8/728491

Inventors:

James H. Harrington - Stone Mountain GA
Randall E. Kozulla - Social Circle GA
John F. L. Newport - Stone Mountain GA
Edward J. Engle - Conyers GA
Elizabeth L. Fahey - Conyers GA
Walter J. Freeman - Landenberg PA
Rakesh K. Gupta - Conyers GA
Carl J. Wust - Conyers GA

Assignee:

Fiberco., Inc. - Wilmington DE

International Classification:

D01D 1002
D01F 604
D01F 806

US Classification:

264 83

Abstract:

Process of producing skin-core fibers and the resulting fibers and nonwoven materials and articles wherein the fibers are composed of a polymer blend of a polyolefin and polymeric bond curve enhancing agents, such as ethylene vinyl acetate polymers.

US Patent:

61168831, Sep 12, 2000

Filed:

Feb 7, 1996

Appl. No.:

8/598240

Inventors:

Kunihiko Takeuchi - Conyers GA
Rakesh K. Gupta - Conyers GA
Shiv Sibal - Conyers GA
Richard J. Coffin - Conyers GA
Walter J. Freeman - Landenberg PA

Assignee:

Fiberco, Inc. - Wilmington DE

International Classification:

B29C 4786
D01D 400
D01D 5088

US Classification:

425 722

Abstract:

Process and apparatus for spinning polymer filaments permits the obtaining of skin-core filament structure by feeding a polymer composition to a spinnerette at a flow rate sufficient to obtain a spinning speed of about 10 to 200 meters per minute through the spinnerette; heating the polymer composition at a location at or adjacent to the spinnerette so as to heat the polymer composition to a sufficient temperature to obtain a skin-core filament structure upon quenching in an oxidative atmosphere; extruding the heated polymer composition through the spinnerette at a spinning speed of about 10 to 200 meters per minute to form molten filaments; and quenching the molten filaments in an oxidative atmosphere so as to effect oxidative chain scission degradation of at least a surface of the molten filaments to obtain filaments having a skin-core structure.

US Patent:

57560269, May 26, 1998

Filed:

Jan 5, 1996

Appl. No.:

8/583513

Inventors:

William L. Sanchez - Conyers GA
Walter J. Freeman - Landenberg PA

Assignee:

Fiberco, Inc. - Wilmington DE

International Classification:

B29C 7100
B29C 3500
B29C 3308

US Classification:

264138

Abstract:

A process for eliminating post-molding fabric curl and distortion in molded fabrics and fabrics produced thereby. The molded fabrics are laminates including a non-woven fabric face and a binder layer and/or sheet backing. Post-molding curling and distortion can be eliminated by maintaining heat on the face fabric until the backing has been cooled enough to be rigid.