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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 10865002 B1

PDFFull Text
Date of Patent:
Dec. 15, 2020

Filed:

Mar. 30, 2018

Method for producing polymer tube containing liquid and being sealed at constant intervals and apparatus for producing polymer tube

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Ryuichi Saguchi, Joetsu, JP;

Tomoaki Kaji, Joetsu, JP;

Masahiko Naruse, Joetsu, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Philip C Tucker

Assistant Examiner:

Vicki Wu

Int. Cl.
CPC ...
B65B 3/02 (2006.01); B29C 65/06 (2006.01); B65B 3/30 (2006.01); B65B 51/22 (2006.01); B65B 61/02 (2006.01); B29C 48/09 (2019.01); B29C 48/00 (2019.01); B65B 65/00 (2006.01); B65B 39/06 (2006.01); B65B 37/00 (2006.01); B65B 39/00 (2006.01); B65B 63/08 (2006.01); B65B 9/24 (2006.01); B65B 51/32 (2006.01); B29C 48/11 (2019.01); B65B 51/16 (2006.01); B29K 23/00 (2006.01); B29C 48/30 (2019.01); B29C 48/29 (2019.01); B29C 48/13 (2019.01); B29C 48/88 (2019.01); B29C 48/345 (2019.01);
U.S. Cl.
CPC ...
B65B 3/022 (2013.01); B29C 48/00 (2019.02); B29C 48/0019 (2019.02); B29C 48/0021 (2019.02); B29C 48/09 (2019.02); B29C 48/11 (2019.02); B29C 65/0672 (2013.01); B65B 3/30 (2013.01); B65B 9/24 (2013.01); B65B 37/00 (2013.01); B65B 39/001 (2013.01); B65B 39/06 (2013.01); B65B 51/16 (2013.01); B65B 51/225 (2013.01); B65B 51/32 (2013.01); B65B 61/02 (2013.01); B65B 63/08 (2013.01); B65B 65/006 (2013.01); B29C 48/13 (2019.02); B29C 48/29 (2019.02); B29C 48/30 (2019.02); B29C 48/345 (2019.02); B29C 48/9115 (2019.02); B29K 2023/065 (2013.01); B65B 2220/24 (2013.01);
Abstract

Provided are a method and an apparatus for extruding into a tube and filling the tube at a high speed and simultaneously sealing the tube. Specifically provided is a method for producing a polymer tube, containing a liquid therein and being sealed at constant intervals, the method including an extrusion step of continuously melt-extruding a polymer material through a die into at least one tube, while feeding a liquid into the tube to obtain at least one liquid-containing tube; and sealing step of discontinuously pressing the at least one liquid-containing tube between a pair of pressurizing members at constant intervals to cause pressure-bonding before the tube solidifies, while continuously taking up the extruded tube.

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