CIGARETTE FILTER INCLUDING LYOCELL TOW
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United States of America
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Issued Date -
Dec 12, 2024
app pub date -
Nov 3, 2022
filing date -
Nov 3, 2022
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
A cigarette filter which includes lyocell tow made of a plurality of lyocell fibers and a binder configured to bond the lyocell fibers to each other and has a hardness of 85% or higher is provided. According to one embodiment of the present disclosure, the cigarette filter has a hardness of 80% or higher even 5 minutes after 20 parts by weight to 25 parts by weight of water is added thereto based on 100 parts by weight of the lyocell tow. According to one embodiment of the present disclosure, the cigarette filter has a degree of collapse due to moisture of 7% or lower. According to one embodiment of the present disclosure, the cigarette filter overcomes existing, material-related problems of lyocell tow and has a high hardness and a low degree of collapse due to moisture.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KOLON INDUSTRIES INC | (MAGOK-DONG) 110 MAGOKDONG-RO GANGSEO-GU SEOUL 07793 | |
KT&G CORPORATION | 71 BEOTKKOT-GIL DAEDEOK-GU DAEJEON 34337 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
AHN, Ki Jin | Daejeon, KR | 26 | 4 |
CHEONG, Bong Su | Daejeon, KR | 32 | 17 |
HA, Sung Hoon | Daejeon, KR | 12 | 3 |
HWANG, Yeong Nam | Gumi-si, KR | 12 | 1 |
JEONG, Jong Cheol | Gumi-si, KR | 21 | 34 |
JIN, Sang Woo | Gumi-si, KR | 24 | 28 |
LEE, Jeong Hun | Gumi-si, KR | 41 | 105 |
MA, Kyeng Bae | Daejeon, KR | 6 | 1 |
SEO, Seung Dong | Gumi-si, KR | 8 | 0 |
YANG, Jin Chul | Daejeon, KR | 14 | 4 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 12, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 12, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 12, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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