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:
Oct. 15, 2013
Filed:
Jun. 16, 2005
High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
Applicant:
Mary Therese Jernigan, Kingsport, TN (US);
Inventor:
Mary Therese Jernigan, Kingsport, TN (US);
Assignee:
Grupo Petrotemex, S.A. de C.V., San Pedro Garza Garcia, MX;
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for the production of solid polyester polymer particles comprising: In a further embodiment, after solidification of the polyester from the melt phase polycondensation process: Such particles having an AA (acetaldehyde) generation rate of 20 ppm or less upon being melted after solidification following the melt phase production and a free AA level reduced after melt phase production to 10 ppm or less are introduced into a melt processing zone to make articles such as bottle preforms having acceptable levels of residual AA.