Robert L Usher

US Patent:

60677856, May 30, 2000

Filed:

Apr 24, 1998

Appl. No.:

9/066162

Inventors:

David Michael Russell - Charlotte NC
Winston Patrick Moore - Charlotte NC
Robert Alton Usher - Charlotte NC

Assignee:

Wellman, Inc. - Shrewsbury NJ

International Classification:

D01H 400

US Classification:

57400

Abstract:

A method is disclosed for spinning polyester staple to produce dark dyeing yarns as compared to yarns having an otherwise similar composition. The method includes spinning polyester staple into yarn, in which the polyester includes between about 0. 5 and 4 percent by weight of polyethylene glycol, into yarn in a rotor spinning machine at a rotor speed of between about 110,000 and 120,000 rpm and at a tension of between about 2. 5 and 3. 2 grams/tex. A resulting polyester fiber is also disclosed of between about 1. 2 and 2. 25 denier per filament, and that contains between about 0. 5 and 4 percent by weight of polyethylene glycol, and with a fiber tenacity of 4. 7 grams per denier or less.

US Patent:

20220177630, Jun 9, 2022

Filed:

Feb 28, 2020

Appl. No.:

16/804973

Inventors:

- Gastonia NC, US
Robert Alton Usher - Charlotte NC, US

International Classification:

C08F 283/06
C08L 99/00
C08L 67/02

Abstract:

A copolymer composition is disclosed with advantages for textile fibers, yarns, blended yarns, fabrics, and garments. The composition includes polyester copolymer, between about 9.5 and 10.5 percent adipic acid based on the amount of copolymer, between about 630 and 770 parts per million (ppm) of pentaerythritol based on the amount of copolymer, and between about 3.4 and 4.2 percent polyethylene glycol based on the amount of copolymer.

US Patent:

20210371582, Dec 2, 2021

Filed:

Mar 30, 2021

Appl. No.:

17/216752

Inventors:

- Gastonia NC, US
Robert A. Usher - Charlotte NC, US

Assignee:

Parkdale Incorporated - Gastonia NC

International Classification:

C08G 63/672
D06P 3/52
D06P 3/54
D06P 3/82
D01F 6/84
D02G 3/04

Abstract:

A composition with advantages for textile fibers is disclosed. The composition is a melt of polyester precursors selected from the group consisting of terephthalic acid, dimethyl terephthalate, ethylene glycol, sebacic acid in an amount sufficient to give filaments and fibers made from the melt a dye receptivity similar to cotton at atmospheric pressure; pentaerythritol in an amount sufficient to give pill resistance to yarns blended of cotton with fibers made from the melt, and polyethylene glycol in an amount sufficient to give the melt the elasticity necessary to produce extruded filament from the melt. In an exemplary embodiment, the copolymer melt includes between about 4 and 6 percent sebacic acid, between about 500 and 800 ppm pentaerythritol, and between about 3.5 and 3.9 percent polyethylene glycol, with less than 2 percent DEG, at an intrinsic viscosity of between about 0.640 and 0.690 dl/g, and at a temperature of between about 268 C. and 271 C., with the proportional amounts being based on the amount of polymerized copolymer.

US Patent:

20210269636, Sep 2, 2021

Filed:

Feb 28, 2020

Appl. No.:

16/804944

Inventors:

- Gastonia NC, US
Robert Alton Usher - Charlotte NC, US

International Classification:

C08L 67/02
C08K 3/22
C08K 5/092
C08K 5/053
C08K 5/11
D04H 3/011
D01F 9/26
D06M 15/507
D04H 3/015

Abstract:

A copolymer composition is disclosed with advantages for textile fibers, yarns, blended yarns, fabrics, and garments. The composition includes polyester copolymer, between about 9.5 and 10.5 percent adipic acid based on the amount of copolymer, between about 630 and 770 parts per million (ppm) of pentaerythritol based on the amount of copolymer, and between about 3.4 and 4.2 percent polyethylene glycol based on the amount of copolymer.

US Patent:

20210269967, Sep 2, 2021

Filed:

Feb 28, 2020

Appl. No.:

16/804927

Inventors:

- Gastonia NC, US
Robert Alton Usher - Charlotte NC, US

International Classification:

D06P 3/82
C08G 63/672
D03D 15/00
D04B 1/16
D04B 21/16

Abstract:

A copolymer composition is disclosed with advantages for textile fibers, yarns, blended yarns, fabrics, and garments. The composition includes polyester copolymer, between about 9.5 and 10.5 percent adipic acid based on the amount of copolymer, between about 630 and 770 parts per million (ppm) of pentaerythritol based on the amount of copolymer, and between about 3.4 and 4.2 percent polyethylene glycol based on the amount of copolymer.