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:
Jun. 03, 2008
Filed:
Mar. 31, 2006
Edmund Arthur Flexman, Wilmington, DE (US);
Julius Uradnisheck, Glen Mills, PA (US);
Edmund Arthur Flexman, Wilmington, DE (US);
Julius Uradnisheck, Glen Mills, PA (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Toughened poly(lactic acid) resin compositions comprising poly(lactic acid) and an impact modifier comprising an ethylene copolymer made from monomers (a) ethylene; (b) one or more olefins of the formula CH═C(R)COR, where Ris hydrogen or an alkyl group with 2-8 carbon atoms and Ris an alkyl group with 1-8 carbon atoms, such as methyl, ethyl, or butyl; and (c) one or more olefins of the formula CH═C(R)COR, where Ris hydrogen or an alkyl group with 1-6 carbon atoms, such as methyl, and Ris glycidyl. The ethylene copolymer may further be made from carbon monoxide monomers. The compositions may further comprise one or more ethylene/acrylate and/or ethylene/vinyl ester polymers, ionomers, and cationic grafting agents.