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:
Dec. 15, 1998
Filed:
May. 03, 1996
Ali Zakareya El-Afandi, Woodbury, MN (US);
Patrick Richard Gruber, Blaine, MN (US);
Jeffrey John Kolstad, Wayzata, MN (US);
James Lunt, Minnetonka, MN (US);
Christopher M Ryan, Dayton, MN (US);
James Zakareya Nangeroni, Doylestown, PA (US);
Nancy Uzelac Buehler, Minneapolis, MN (US);
Mark Hartmann, Minnetonka, MN (US);
Jed Richard Randall, Minneapolis, MN (US);
Andrea Lee Brosch, Eden Prairie, MN (US);
Cargill, Incorporated, Minneapolis, MN (US);
Abstract
A compostable multilayer film includes a core layer having a first surface and a second surface, a first blocking reducing layer covering the first surface of the core layer, and a second blocking reducing core layer comprises a lactic acid residue-containing polymer having a glass transition temperature (Tg) below 20.degree. C. The first and second blocking reducing layers comprise a semicrystalline aliphatic polyester. The hydrolyzable polymer and have a T.sub.g above about 50.degree. C. The multilayer structure can be used for preparing bags and wrappers.