Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Reexamination Certificate
2007-01-30
2007-01-30
Zara, Jane (Department: 1635)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
C435S006120, C435S252310, C435S252330, C424S001370
Reexamination Certificate
active
10213203
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.
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Burch Robert R.
Dorsch Robert R.
Laffend Lisa Anne
Nagarajan Vasantha
Nakamura Charles
E. I. du Pont de Nemours and Company
Genencor International Inc.
Zara Jane
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