US Patent No: 5,250,245

Number of patents in Portfolio can not be more than 2000

Process for preparing polyester fine filaments

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Importance

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Abstract

Polyester fine filaments having excellent mechanical quality and uniformity, and preferably with a balance of good dyeability and shrinkage, are prepared by a simplified direct spin-orientation process by selection of polymer viscosity and spinning conditions.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INVISTA NORTH AMERICA S.A.R.L.WILMINGTON, DE1136

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Collins, Robert J Vancouver, CA 59 515
Frankfort, Hans R E Kinston, NC 9 115
Johnson, Stephen B Colorado Springs, CO 53 615
Knox, Benjamin H Wilmington, DE 26 222
Most, Jr Elmer E Kinston, NC 8 86

Cited Art

Patent Info (Count) # Cites Year
 
E. I. DU PONT DE NEMOURS AND COMPANY (1)
4,195,051 Process for preparing new polyester filaments 51 1978

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
INVISTA NORTH AMERICA S.A.R.L. (16)
5,356,582 Continuous hollow filament, yarns, and tows 13 1992
5,288,553 Polyester fine filaments 9 1993
5,417,902 Process of making polyester mixed yarns with fine filaments 9 1993
5,487,859 Process of making fine polyester hollow filaments 2 1994
5,532,060 Continuous hollow filaments, yarns, and tows 2 1994
5,585,182 Process for polyester fine hollow filaments 11 1995
5,827,464 Making high filament count fine filament polyester yarns 2 1995
5,741,587 High filament count fine filament polyester yarns 4 1995
5,607,765 Sulfonate-containing polyesters dyeable with basic dyes 25 1996
5,824,248 Spinning polymeric filaments 10 1996
6,013,368 Comfort by mixing deniers 1 1998
6,090,485 Continuous filament yarns 1 1998
6,444,151 Apparatus and process for spinning polymeric filaments 5 2000
6,475,412 Process for making polyurethaneurea powder 1 2000
6,673,442 Multilobal polymer filaments and articles produced therefrom 4 2001
6,855,420 Multilobal polymer filaments and articles produced therefrom 8 2003
 
E. I. DU PONT DE NEMOURS AND COMPANY (7)
6,287,688 Partially oriented poly(trimethylene terephthalate) yarn 18 2000
6,672,047 Processes of preparing partially oriented and draw textured poly(trimethylene terephthalate) yarns 5 2001
6,663,806 Processes for making poly (trimethylene terephthalate) yarns 3 2001
6,383,632 Fine denier yarn from poly (trimethylene terephthalate) 5 2001
6,685,859 Processes for making poly(trimethylene terephthalate) yarn 3 2001
6,333,106 Draw textured poly(trimethylene terephthalate) yarn 14 2001
6,998,079 Process of making partially oriented poly(trimethylene terephthalate) yarn 0 2003
 
BOZZETTO, INC. (1)
7,967,873 Dyed textile article and dye bath assistant 0 2006
 
HYOSUNG CORPORATION (1)
6,919,131 Latent-elasticity interlaced-textured yarn and suede-like elastic woven fabric produced using the same 1 2004
 
NAN YA PLASTICS CORPORATION (1)
6,926,854 Process of making polyester fine denier multifilament 1 2003