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:
Nov. 18, 1997
Filed:
Dec. 22, 1995
Applicant:
Inventor:
Douglas Claire Hoffman, Kingsport, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525444 ; 528481 ; 528503 ;
Abstract
The present invention relates to a process comprising solid state polymerizing an immiscible polyester blend which has not been substantially melt esterified under conditions sufficient to produce a polyester blend which when remelted becomes clear. Polyester blends having improved I.V., color and low acetaldehyde are also disclosed.
Hoffman, Douglas. (1997). Process for preparing blends of poly(ethylene terephthalate) and (U.S. Patent No. 5688874). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5688874
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile