The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2006
Filed:
Feb. 19, 2003
Kailash Dangayach, Houston, TX (US);
Kathleen Suzanne Kiibler, Katy, TX (US);
Michele Buscemi, Grand Leez, BE;
Dieter Wiemer, Wermelskirchen, DE;
Hansjorg Meise, Köln, DE;
Hoe Hin Chuah, Houston, TX (US);
Adriano Birosel Pangelinan, Houston, TX (US);
Houston Slade Brown, Houston, TX (US);
Kailash Dangayach, Houston, TX (US);
Kathleen Suzanne Kiibler, Katy, TX (US);
Michele Buscemi, Grand Leez, BE;
Dieter Wiemer, Wermelskirchen, DE;
Hansjorg Meise, Köln, DE;
Hoe Hin Chuah, Houston, TX (US);
Adriano Birosel Pangelinan, Houston, TX (US);
Houston Slade Brown, Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A process for the production and for the winding of one polyester yarn, preferably multi-filament yarn, which comprises at least about 85 weight %, in relation to the total weight of the polyester yarn, of polytrimethylene terephthalate (PTT) wherein said process is characterized in that filaments of said polyester yarn is heat-treated, before it is wound on a bobbin, at a temperature in the range of about 70° C. to about 180° C. The method of accomplishing this is by heating the godets that are used in the spinning part of the process, preferably the last pair of godets, to relax the yarns so that the yarn package will not shrink significantly during storage and/or transportation. It is thus possible to obtain at least one PTT yarn package with long-term stability during storage and which is insensitive against elevated temperatures during storage and transport.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile