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:
Jun. 05, 2007
Filed:
Jun. 29, 2005
Karunakaran Narasimhan, West Chester, OH (US);
Kenneth Yee, Cincinnati, OH (US);
Angella Christine Cearley, Hamilton, OH (US);
Donald Levengood, Mason, OH (US);
Guo-qiang Chen, Beijing, CN;
Karunakaran Narasimhan, West Chester, OH (US);
Kenneth Yee, Cincinnati, OH (US);
Angella Christine Cearley, Hamilton, OH (US);
Donald Levengood, Mason, OH (US);
Guo-Qiang Chen, Beijing, CN;
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
Processes for the extraction of PHAs from biomass, said processes comprising: combining the biomass containing the PHAs with a single main solvent to form a biomass liquor; heating the biomass liquor to at least partially solubilize the PHAs from the biomass to form a PHA liquor; separating the biomass from the PHA liquor to form a PHA-enriched liquor; evaporating from 0% to about 50% of the single main solvent from the PHA-enriched liquor to form a solvent vapor and a concentrated PHA-enriched liquor; and cooling the concentrated PHA-enriched liquor to form precipitated PHAs and an impure solvent liquor. Optionally, further recovering the precipitated PHAs from the impure solvent liquor by filtration under pressure. A PHA-enriched liquor and a concentrated PHA-enriched liquor.