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:
Sep. 18, 2012
Filed:
Aug. 14, 2009
Linshu Liu, Wyncote, PA (US);
David R. Coffin, Glenside, PA (US);
Kevin B. Hicks, Malvern, PA (US);
Zhonglin T. Jin, North Wales, PA (US);
LinShu Liu, Wyncote, PA (US);
David R. Coffin, Glenside, PA (US);
Kevin B. Hicks, Malvern, PA (US);
Zhonglin T. Jin, North Wales, PA (US);
The United States of America, as represented by the Secretary of Agriculture, Washington, DC (US);
Abstract
A composition containing poly(lactic acid), at least one bacteriocin (e.g., nisin, generally in the form of Nisaplin®), and at least one plasticizer (e.g., lactic acid, lactide, triacetin, glycerol triacetate), and optionally at least one pore forming agent. A method of making the composition, involving mixing about 100% of the total of the poly(lactic acid), about 50% to about 90% of the total of the at least one plasticizer, and optionally at least one pore forming agent at a first temperature of about 150° to about 170° C. to form a mixture, cooling the mixture to a second temperature of about 115° to about 125° C., adding at least one bacteriocin and about 10% to about 50% of the total of the at least one plasticizer and the remainder of the total of the poly(lactic acid) to the mixture and mixing to form the composition.