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:
Jul. 27, 2010
Filed:
Apr. 19, 2006
Stacie Ellen Hecht, West Chester, OH (US);
Raymond Louis Niehoff, Hamilton, OH (US);
Karunakaran Narasimhan, West Chester, OH (US);
Charles William Neal, Fairfield, OH (US);
Paul Arlen Forshey, Cincinnati, OH (US);
Dean Van Phan, West Chester, OH (US);
Anju Deepali Massey Brooker, Gosforth, GB;
Katherine Helen Combs, Cincinnati, OH (US);
Stacie Ellen Hecht, West Chester, OH (US);
Raymond Louis Niehoff, Hamilton, OH (US);
Karunakaran Narasimhan, West Chester, OH (US);
Charles William Neal, Fairfield, OH (US);
Paul Arlen Forshey, Cincinnati, OH (US);
Dean Van Phan, West Chester, OH (US);
Anju Deepali Massey Brooker, Gosforth, GB;
Katherine Helen Combs, Cincinnati, OH (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
Methods for using ionic liquids to extract and separate a biopolymer from a biomass containing the biopolymer are disclosed. Methods for dissolving a biopolymer in an ionic liquid are also disclosed. A recovery solvent is used to reduce the solubility of the biopolymer in the ionic liquid and conventional separation techniques are used to recover the biopolymer. Biopolymers encompassed by this invention include chitin, chitosan, elastin, collagen, keratin and polyhydroxyalkanoate.