Polyester Resins for High-Strength Articles

a polyester resin and high-strength technology, applied in the field of high-strength polyester resins, can solve the problems of insufficient dimensional stability of most high-clarity polyester bottles, inability to efficiently form preforms and bottles, and inability to meet the requirements of dimensional stability, etc., and achieve the effect of efficient formation of low-haze, high-clarity articles
US20070059465A1Inactive Publication Date: 2007-03-15WELLMAN INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
WELLMAN INC
Publication Date
2007-03-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to slow-crystallizing, titanium-catalyzed polyethylene terephthalate resins that are useful for making high-strength, high-clarity bottles that possess improved resistance to stress cracking and thermal creep. The polyethylene terephthalate resins possess improved reheating profiles and are especially useful for making polyester articles that have exceptional clarity, dimensional stability, and thermal stability.
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Description

CROSS-REFERENCE TO COMMONLY ASSIGNED APPLICATIONS

[0001] This application is a continuation-in-part of commonly assigned U.S. patent application Ser. No. 10 / 996,789, for Polyester Preforms Useful for Enhanced Heat-Set Bottles, filed Nov. 24, 2004, (and published Jul. 14, 2005, as Publication No. 2005 / 0153086 A1), now U.S. Pat. No. 7,094,863, which itself is a continuation-in-part of commonly assigned U.S. patent application Ser. No. 10 / 850,918, for Slow-Crystallizing Polyester Resins, filed May 21, 2004, (and published Nov. 25, 2004, as Publication No. 2004 / 0236066 A1).

[0002] This application is also a continuation-in-part of commonly assigned International Patent Application No. PCT / US04 / 39726 for Methods of Making Titanium-Catalyzed Polyethylene Terephthalate Resins, filed Nov. 24, 2004, (and published Nov. 3, 2005, as Publication No. WO 2005 / 103110), which itself is a continuation-in-part of U.S. patent application Ser. No. 10 / 850,269, for Methods of Making Titanium-Catalyzed Po...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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