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:
Jan. 30, 2007
Filed:
Aug. 05, 2002
Robert R. Burch, Exton, PA (US);
Robert R. Dorsch, Hockessin, DE (US);
Lisa Anne Laffend, Claymont, DE (US);
Vasantha Nagarajan, Wilmington, DE (US);
Charles Nakamura, Claymont, DE (US);
Robert R. Burch, Exton, PA (US);
Robert R. Dorsch, Hockessin, DE (US);
Lisa Anne Laffend, Claymont, DE (US);
Vasantha Nagarajan, Wilmington, DE (US);
Charles Nakamura, Claymont, DE (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Genencor International, Inc., Palo Alto, CA (US);
Abstract
A new polypropylene terephthalate composition is provided. The polypropylene terephthalate is comprised of 1,3-propanediol and terephthalate. The 1,3-propanediol is produced by the bioconversion of a fermentatble carbon source, preferable glucose. The resulting polypropylene terephthalate is distinguished from petrochemically produced polymer on the basis of dual carbon-isotopic fingerprinting which indicates both the source and the age of the carbon.