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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 9868231 B1

PDFFull Text
Date of Patent:
Jan. 16, 2018

Filed:

Mar. 24, 2016

Polyglycolic acid molded article, component for downhole tool, and method of producing polyglycolic acid molded article

Applicant:

Kureha Corporation, Tokyo, JP;

Inventors:

Mizuki Saito, Tokyo, JP;

Fuminori Kobayashi, Tokyo, JP;

Assignee:

KUREHA CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

David Sample

Assistant Examiner:

Donald M Flores, Jr

Int. Cl.
CPC ...
C08G 63/08 (2006.01); B29C 35/08 (2006.01); B29C 45/00 (2006.01); B29C 71/00 (2006.01); B29C 71/02 (2006.01); C08G 63/06 (2006.01); B29K 67/00 (2006.01);
U.S. Cl.
CPC ...
B29C 35/0866 (2013.01); B29C 35/0805 (2013.01); B29C 71/0009 (2013.01); B29C 71/02 (2013.01); C08G 63/06 (2013.01); B29C 45/0001 (2013.01); B29C 2035/085 (2013.01); B29C 2035/0877 (2013.01); B29K 2067/043 (2013.01);
Abstract

The polyglycolic acid having a content of low molecular weight substance of less than 1% by weight; and a molded article thereof having a thickness of 2 mm or greater, the time at which immersion of the molded article in water at 66° C. is started to the time at which the polyglycolic acid decomposed by the water starts to elute being 1 hour or longer by 30 hours or shorter, and a rate of embrittlement, at which embrittlement proceeds due to the elution of the polyglycolic acid, being 0.025 mm/h or greater.

Find Patent Forward Citations

Saito, Mizuki. (2018). Polyglycolic acid molded article, component for downhole tool, and method of producing polyglycolic acid molded article (U.S. Patent No. 9868231). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9868231

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

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