Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2008-09-12
2011-11-22
Heitbrink, Jill (Department: 1743)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
Reexamination Certificate
active
08062574
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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Office Action issued on Mar. 17, 2010 in Japanese application No. 2008-235257.
Office Action issued on Mar. 17, 2010 in Japanese application No. 2008-235259.
English Computer translation of JP-2003-236944-A dated Aug. 26, 2003.
English Computer translation of JP-2007-191549-A dated Aug. 2, 2007.
English Computer translation of JP-2007-269019-A dated Oct. 18, 2007.
Enomoto Haruomi
Kishimoto Hiroaki
Moriwaka Hirofumi
Takenaka Akira
Birch & Stewart Kolasch & Birch, LLP
Heitbrink Jill
KAO Corporation
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