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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 11013580 B1

PDFFull Text
Date of Patent:
May. 25, 2021

Filed:

Oct. 21, 2019

Method of manufacturing a dental cord

Applicant:

Amogreentech Co., Ltd., Gimpo-si, KR;

Inventors:

Chan Kim, Gwangju, KR;

Seung Hoon Lee, Paju-si, KR;

Song Hee Koo, Seoul, KR;

Ji Hyun Lee, Incheon, KR;

Assignee:

AMOGREENTECH CO., LTD., Gimpo-si, KR;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Leo B Tentoni

Int. Cl.
CPC ...
D01F 2/26 (2006.01); D01F 6/10 (2006.01); D01F 6/12 (2006.01); D01F 6/14 (2006.01); D01F 6/16 (2006.01); D01F 6/22 (2006.01); D01F 6/60 (2006.01); D01F 6/70 (2006.01); D02G 1/02 (2006.01); D02G 3/04 (2006.01); D02G 3/06 (2006.01); D02G 3/38 (2006.01); D02J 1/22 (2006.01); D04H 3/16 (2006.01); A61C 9/00 (2006.01); A61L 31/16 (2006.01); D02G 3/36 (2006.01); A61C 19/06 (2006.01); A61L 31/04 (2006.01); A61L 31/14 (2006.01); D01D 4/02 (2006.01); D01D 5/00 (2006.01); D01D 7/00 (2006.01); D01F 8/04 (2006.01); D02G 3/40 (2006.01); D02G 3/44 (2006.01); D01F 6/18 (2006.01); D01D 5/42 (2006.01); B32B 38/00 (2006.01); B32B 37/15 (2006.01);
U.S. Cl.
CPC ...
A61C 9/0033 (2013.01); A61C 19/063 (2013.01); A61L 31/048 (2013.01); A61L 31/146 (2013.01); A61L 31/16 (2013.01); D01D 4/02 (2013.01); D01D 5/0061 (2013.01); D01D 7/00 (2013.01); D01F 8/04 (2013.01); D02G 3/36 (2013.01); D02G 3/40 (2013.01); D02G 3/448 (2013.01); A61L 2300/418 (2013.01); A61L 2400/12 (2013.01); B29C 2793/0063 (2013.01); B32B 37/153 (2013.01); B32B 38/0004 (2013.01); D01D 5/0038 (2013.01); D01D 5/426 (2013.01); D01F 6/18 (2013.01); D10B 2201/26 (2013.01); D10B 2321/041 (2013.01); D10B 2321/042 (2013.01); D10B 2321/06 (2013.01); D10B 2321/08 (2013.01); D10B 2321/10 (2013.01); D10B 2321/121 (2013.01); D10B 2331/02 (2013.01); D10B 2331/10 (2013.01); D10B 2509/00 (2013.01);
Abstract

Provided is a method of manufacturing a dental cord. The method including: producing a spinning solution by dissolving a fiber-moldable hydrophobic polymer material in a solvent; spinning the spinning solution to obtain a polymer nanofiber web composed of nanofibers and including three-dimensional micropores; laminating the polymer nanofiber web to obtain a polymer membrane; slitting the polymer membrane to obtain a nanofiber tape yarn; hydrophilic-treating the nanofiber tape yarn to obtain a hydrophilic-treated nanofiber tape yarn; plying and twisting the hydrophilic-treated nanofiber tape yarn with a covered yarn to obtain a nanofiber multiple yarn; and impregnating the nanofiber multiple yarn with a hemostatic agent.

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