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. 02, 2015
Filed:
Aug. 19, 2010
Shinichiro Ochiai, Nagoya, JP;
Tatsuya Takamoto, Nagoya, JP;
Sadayuki Kobayashi, Nagoya, JP;
Toray Industries, Inc., , JP;
Abstract
A polylactic acid stereocomplex has a crystal melting peak temperature of 215° C. or more, wherein the crystal melting peak is a single peak and has a peak half width of 12° C. or less, and a crystal melting enthalpy of 60 J/g or more as measured by differential scanning calorimetry. The polylactic acid stereocomplex has a high melting point, good heat resistance, and a high level of mechanical properties and chemical resistance. The method for producing a polylactic acid stereocomplex includes chaotic mixing of 30 to 70 parts by weight of (A) poly-L-lactic acid and 30 to 70 parts by weight of (B) poly-D-lactic acid based on 100 parts by weight of the total of (A) poly-L-lactic acid and (B) poly-D-lactic acid.