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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 12030978 B1

PDFFull Text
Date of Patent:
Jul. 09, 2024

Filed:

Sep. 25, 2020

Polyurethane urea elastic yarn dyeable with reactive dye and manufacturing method therefor

Applicant:

Hyosung Tnc Corporation, Seoul, KR;

Inventors:

Ji Young Kang, Seoul, KR;

Yeon Soo Kang, Gyeonggi-do, KR;

Tae Heon Kim, Gyeonggi-do, KR;

Seong Bin Cho, Daegu, KR;

Assignee:

Hyosung TNC Corporation, Seoul, KR;

Attorney:

HSML P.C.

Primary Examiner:

Eisa B Elhilo

Int. Cl.
CPC ...
D01F 1/00 (2006.01); C08G 18/12 (2006.01); C08G 18/28 (2006.01); C08G 18/32 (2006.01); C08G 18/76 (2006.01); D01F 1/10 (2006.01); D01F 6/78 (2006.01); D02G 3/02 (2006.01); D02G 3/32 (2006.01); D06P 3/02 (2006.01);
U.S. Cl.
CPC ...
C08G 18/12 (2013.01); C08G 18/2865 (2013.01); C08G 18/3228 (2013.01); C08G 18/7671 (2013.01); D01F 1/10 (2013.01); D01F 6/78 (2013.01); D02G 3/02 (2013.01); D02G 3/328 (2013.01); D06P 3/028 (2013.01); D10B 2331/30 (2013.01); D10B 2401/061 (2013.01); D10B 2401/14 (2013.01);
Abstract

The present invention is directed to a reactive dye-dyeable polyurethane-urea elastic yarn including a reaction product of at least two polyols, a diisocyanate compound, a diamine chain extender, an amine chain terminator, and a diethylenetriamine compound, wherein one of the polyols is polyethylene glycol, which is included in an amount of 20 to 30.0 mol % based on the total amount of the polyols, a polyurethane-urea polymer includes 10 meq/kg to 45 meq/kg of primary amine ends, and the capping ratio (CR) of the diisocyanate to the polyols is 1.8 to 2.0.

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