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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.:

US 8936454 B1

PDFFull Text
Date of Patent:
Jan. 20, 2015

Filed:

Nov. 22, 2011

Resin extrusion die and extrusion method using the same

Applicant:

Toshiyuki Tajiri, Hiratsuka, JP;

Inventor:

Toshiyuki Tajiri, Hiratsuka, JP;

Assignee:

Mitsubishi Engineering-Plastics Corporation, Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Yogendra Gupta

Assistant Examiner:

Joseph Leyson

Int. Cl.
CPC ...
D01D 5/14 (2006.01); D01D 5/16 (2006.01); B29C 47/12 (2006.01); B29B 9/06 (2006.01); B29C 47/00 (2006.01); B29C 47/08 (2006.01); B29C 47/30 (2006.01); B29C 47/34 (2006.01); B29C 47/92 (2006.01); B29C 47/14 (2006.01);
U.S. Cl.
CPC ...
B29C 47/12 (2013.01); B29B 9/06 (2013.01); B29C 47/0014 (2013.01); B29C 47/0057 (2013.01); B29C 47/0085 (2013.01); B29C 47/085 (2013.01); B29C 47/0883 (2013.01); B29C 47/30 (2013.01); B29C 47/34 (2013.01); B29C 47/92 (2013.01); B29C 47/0009 (2013.01); B29C 47/14 (2013.01); B29C 2947/926 (2013.01);
Abstract

This invention provides a resin extrusion die capable of suppressing die drool generation and contamination of a resin molded form with generated die drool serving as foreign substances. The resin extrusion die includes a cap through which a molten resin is extruded, and a cover that includes a gas outlet for forming a gap around the tip of a discharge nozzle and covers at least part of the cap so as to form a space between the cap and the gas outlet. The gas outlet forms, around the tip of the discharge nozzle, the gap whose maximum width/minimum width ranges from 1.05 to 2.0, thereby changing a gas supplied into the cover and flowing out of the gap to a turbulent flow.

Find Patent Forward Citations

Tajiri, Toshiyuki. (2015). Resin extrusion die and extrusion method using the same (U.S. Patent No. 8936454). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8936454

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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