Process for preparing polyester fine filaments

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5250245
SERIAL NO

08015733

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
INVISTA NORTH AMERICA S.A.R.L.WILMINGTON, DE736

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Collins, Robert J Wilmington, NC 54 1395
Frankfort, Hans R E Kinston, NC 9 123
Johnson, Stephen B Wilmington, NC 47 1132
Knox, Benjamin H Wilmington, DE 26 235
Most, Jr Elmer E Kinston, NC 8 90

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2004/0134,182 Partially oriented poly(trimethylene terephthalate) yarn 0 2003
 
INVISTA NORTH AMERICA S.A.R.L. (17)
* 5356582 Continuous hollow filament, yarns, and tows 13 1992
* 5288553 Polyester fine filaments 9 1993
* 5417902 Process of making polyester mixed yarns with fine filaments 13 1993
* 5487859 Process of making fine polyester hollow filaments 2 1994
* 5532060 Continuous hollow filaments, yarns, and tows 3 1994
* 5585182 Process for polyester fine hollow filaments 11 1995
* 5827464 Making high filament count fine filament polyester yarns 2 1995
* 5741587 High filament count fine filament polyester yarns 4 1995
* 5607765 Sulfonate-containing polyesters dyeable with basic dyes 41 1996
* 5824248 Spinning polymeric filaments 10 1996
* 6013368 Comfort by mixing deniers 3 1998
* 6090485 Continuous filament yarns 1 1998
* 6444151 Apparatus and process for spinning polymeric filaments 5 2000
* 6475412 Process for making polyurethaneurea powder 1 2000
6673442 Multilobal polymer filaments and articles produced therefrom 5 2001
6855420 Multilobal polymer filaments and articles produced therefrom 9 2003
* 2004/0140,582 Method of producing polymeric filaments 2 2004
 
E. I. DU PONT DE NEMOURS AND COMPANY (8)
6287688 Partially oriented poly(trimethylene terephthalate) yarn 23 2000
6672047 Processes of preparing partially oriented and draw textured poly(trimethylene terephthalate) yarns 6 2001
6663806 Processes for making poly (trimethylene terephthalate) yarns 3 2001
6383632 Fine denier yarn from poly (trimethylene terephthalate) 5 2001
6685859 Processes for making poly(trimethylene terephthalate) yarn 3 2001
6333106 Draw textured poly(trimethylene terephthalate) yarn 14 2001
* 2002/0037,411 Method of producing polymeric filaments 1 2001
6998079 Process of making partially oriented poly(trimethylene terephthalate) yarn 0 2003
 
HYOSUNG CORPORATION (1)
* 6919131 Latent-elasticity interlaced-textured yarn and suede-like elastic woven fabric produced using the same 1 2004
 
NAN YA PLASTICS CORPORATION (2)
6926854 Process of making polyester fine denier multifilament 1 2003
* 2005/0006,812 Manufacturing method of fine denier polyester multifilaments and fine denier polyester multifilaments made from the same 0 2003
 
Bozzetto, Inc. (1)
* 7967873 Dyed textile article and dye bath assistant 0 2006
* Cited By Examiner