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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 10661497 B1

PDFFull Text
Date of Patent:
May. 26, 2020

Filed:

Jun. 15, 2016

Heat shrink tube and method for producing the same

Applicants:

Nissei Electric Co., Ltd., Hamamatsu-shi, Shizuoka, JP;

Dupont-mitsui Fluorochemicals Co., Ltd., Minato-ku, Tokyo, JP;

Inventors:

Hideki Kikuchi, Hamamatsu, JP;

Tetsuto Nakajima, Hamamatsu, JP;

Daisuke Tanaka, Hamamatsu, JP;

Takao Nishio, Shizuoka, JP;

Etsuya Taki, Tokyo, JP;

Hoai-Nam Pham, Shizuoka, JP;

Assignees:

NISSEI ELECTRIC CO., LTD., Hamamatsu-Shi, Shizuoka, JP;

DUPONT-MITSUI FLUORCHEMICALS CO., LTD., Minato-Ku, Tokyo, JP;

Attorney:

Buchanan Ingersoll & Rooney PC

Primary Examiner:

Ellen S Hock

Int. Cl.
CPC ...
C08J 7/04 (2020.01); B29C 61/08 (2006.01); B29C 48/10 (2019.01); B29C 48/30 (2019.01); B29C 48/32 (2019.01); A61L 29/14 (2006.01); A61L 29/04 (2006.01); C08L 27/18 (2006.01); C08L 27/16 (2006.01); B29L 23/00 (2006.01); B29K 105/16 (2006.01); B29K 427/18 (2006.01); B29K 27/12 (2006.01); B29C 61/06 (2006.01); B29K 105/02 (2006.01);
U.S. Cl.
CPC ...
B29C 61/08 (2013.01); A61L 29/041 (2013.01); A61L 29/049 (2013.01); A61L 29/14 (2013.01); B29C 48/10 (2019.02); B29C 48/30 (2019.02); B29C 48/32 (2019.02); C08L 27/16 (2013.01); C08L 27/18 (2013.01); B29C 61/06 (2013.01); B29K 2027/12 (2013.01); B29K 2105/02 (2013.01); B29K 2105/16 (2013.01); B29K 2427/18 (2013.01); B29K 2995/0049 (2013.01); B29L 2023/00 (2013.01); C08L 2205/02 (2013.01); C08L 2205/025 (2013.01);
Abstract

An object of the present invention is to provide a heat shrink tube excellent in peelability and transparency, and a method for producing the heat shrink tube. The present invention provides a peelable heat shrink tube comprising a composition containing a melt-processable fluororesin and PTFE, the PTFE lacking a heat history of its melting point or higher after polymerization and having a specific gravity, as measured according to ASTM D4894, of 2.20 or less. The content of the PTFE is 0.05 to 3.0 wt % based on the total weight of the melt-processable fluororesin and the PTFE. The present invention also provides a method for producing the tube which comprises melt-extruding the composition at a temperature lower than the melting point of the PTFE.

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