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.

Date of Patent:
Nov. 22, 2011

Filed:

Sep. 12, 2008
Applicants:

Akira Takenaka, Wakayama, JP;

Hiroaki Kishimoto, Wakayama, JP;

Hirofumi Moriwaka, Wakayama, JP;

Haruomi Enomoto, Wakayama, JP;

Inventors:

Akira Takenaka, Wakayama, JP;

Hiroaki Kishimoto, Wakayama, JP;

Hirofumi Moriwaka, Wakayama, JP;

Haruomi Enomoto, Wakayama, JP;

Assignee:

KAO Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of manufacturing a polylactic acid resin injection molded article, having the step (1): a step of melt-kneading a polylactic acid resin composition containing a polylactic acid resin and a specified organic crystal nucleus agent, while contacting the composition with a supercritical fluid; and step (2): a step of filling the melted product obtained in step (1) in a die to mold with injection-molding. The manufacturing method of the present invention is used as an advantageous technique as compared with the technique of achieving satisfactory moldability by the addition of plasticizer in the field, for example, which requires a polylactic acid resin molded article having high rigidity.


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