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:
Feb. 07, 2012
Filed:
May. 06, 2009
Applicant:
Julius Uradnisheck, Glen Mills, PA (US);
Inventor:
Julius Uradnisheck, Glen Mills, PA (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 51/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a process comprising extruding a poly(hydroxyalkanoic acid) (PHA) to produce a first article; thermoforming the first article in a heated mold having a temperature ≧ about 90° C. to produce a second article; and heat treating the second article by holding the second article in the heated mold for less than about 40 seconds to produce a thermoformed article wherein the PHA composition comprises or consists essentially of PHA and 0 to about 4%, based on the weight of the composition, of a nucleator; and the first article is a film or sheet and is partially crystallized.