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:
May. 22, 2012
Filed:
Oct. 18, 2007
Applicants:
Laura Mae Babcock, Plymouth, MN (US);
David E. Henton, Jackson, WY (US);
Fasil A. Tadesse, Burnsville, MN (US);
Inventors:
Laura Mae Babcock, Plymouth, MN (US);
David E. Henton, Jackson, WY (US);
Fasil A. Tadesse, Burnsville, MN (US);
Assignee:
NatureWorks LLC, Minnetonka, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 51/00 (2006.01); C08L 67/04 (2006.01); C08G 63/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polylactide resins are blended with core-shell rubber particles to improve impact strength. A good balance of impact strength and transparency is achieved when the rubber particles are distributed within the polymer matrix such that most of them exist as single particles or agglomerates having a diameter of 150 nanometers or more, and the number average size of the particles and agglomerates is not more than 210 nanometers.