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:
Nov. 20, 2018
Filed:
Apr. 08, 2014
Bio-tec Biologische Naturverpackungen Gmbh & Co. KG, Emmerich, DE;
Harald Schmidt, Emmerich, DE;
Christoph Hess, Rees, DE;
Christophe Bréso, Dieppe, FR;
Ralf Hackfort, Emmerich, DE;
Frank Rörthmans, Issum-Sevelen, DE;
Wolfgang Friedek, Bedburg-Hau, DE;
BIO-TEC BIOLOGISCHE NATURVERPACKUNGEN GMBH & CO. KG, Emmerich, DE;
Abstract
The invention relates to a polymer compound which, based on the total weight of the polymer compound, comprises at least the following components: (a) 5 to 50 wgt.-% destructed starch and/or starch derivative, (b) 20 to 70 wgt.-% aliphatic-aromatic copolymer, (c) 10 to 50 wgt.-% polyhydroxyalkanoate and (d) 3 to 25 wgt.-% polyactic acid. Such polymer compounds are characterized by a high ratio of bio-based carbon and exhibit no significant embrittlement or worsening of the mechanical properties profile, despite the presence of increased volumes of polyhydroxyalkanoate, even after storage. The invention further relates to production methods for the polymer compound according to the invention, and use thereof in the production of films, molded parts or fibers.