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. 18, 2005
Filed:
Dec. 18, 2002
Luhua Zhong, Woburn, MA (US);
Edward M. Muller, Westport, CT (US);
James J. Barber, Winchester, MA (US);
Joseph Pugach, Monroeville, PA (US);
Luhua Zhong, Woburn, MA (US);
Edward M. Muller, Westport, CT (US);
James J. Barber, Winchester, MA (US);
Joseph Pugach, Monroeville, PA (US);
Metabolix Inc., Cambridge, MA (US);
Abstract
Methods of forming intermediates from PHAs are disclosed. In general, the methods include forming a pyrrolidone from a PHA, such as poly 4-hydroxybutyrate or a 4-hydroxybutyrate containing polymer. The methods can include, for example, treating (e.g., heating) the PHA to form a pyrrolidone. The methods can include, for example, treating a biomass containing the PHA to form a pyrrolidone. The methods can include, for example, heating the PHA to a temperature of at most about 90° C. to form a pyrrolidone, wherein the percent yield of the pyrrolidone is at least about 50%.