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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 10306919 B1

PDFFull Text
Date of Patent:
Jun. 04, 2019

Filed:

Sep. 26, 2014

Lyocell material for cigarette filter and method for preparing same

Applicants:

Kolon Industries, Inc., Gwacheon-si, Gyeonggi-do, KR;

Kt&g Corporation, Daejeon, KR;

Inventors:

Jong Cheol Jeong, Yongin-si, KR;

Sang Woo Jin, Yongin-si, KR;

Sang Mok Lee, Yongin-si, KR;

Woo Chul Kim, Yongin-si, KR;

Sang Yoel Lee, Yongin-si, KR;

Jong Yeol Kim, Daejeon, KR;

Soo Ho Kim, Daejeon, KR;

Bong Su Cheong, Daejeon, KR;

Hyun Suk Cho, Daejeon, KR;

Sung Jong Ki, Daejeon, KR;

Assignees:

KOLON INDUSTRIES, INC., Seoul, KR;

KT&G CORPORATION, Daejeon, KR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Christopher T Schatz

Assistant Examiner:

Cynthia L Schaller

Int. Cl.
CPC ...
A24D 3/02 (2006.01); B29C 48/00 (2019.01); A24D 3/10 (2006.01); D01D 1/02 (2006.01); D01F 2/00 (2006.01); A24D 3/06 (2006.01); D01D 5/06 (2006.01); D01D 10/06 (2006.01); D02G 1/00 (2006.01); B29K 1/00 (2006.01); B29L 31/14 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A24D 3/0204 (2013.01); A24D 3/067 (2013.01); A24D 3/068 (2013.01); A24D 3/10 (2013.01); B29C 48/0019 (2019.02); B29C 48/022 (2019.02); D01D 1/02 (2013.01); D01D 5/06 (2013.01); D01D 10/06 (2013.01); D01F 2/00 (2013.01); D02G 1/00 (2013.01); B29K 2001/12 (2013.01); B29L 2031/14 (2013.01); B29L 2031/7416 (2013.01); D10B 2201/28 (2013.01); D10B 2503/00 (2013.01);
Abstract

Disclosed are a lyocell material for a cigarette filter and a method of preparing the same, wherein a crimped tow is manufactured using a lyocell multifilament including low-strength lyocell monofilaments, and thus the ultimately prepared lyocell material for a cigarette filter can exhibit low strength, thereby increasing processing efficiency during the manufacture of the cigarette filter.

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