Acrylic fiber strand suitable for use in carbon fiber production and process for producing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 15, 1994
Grant Date -
N/A
app pub date -
Dec 20, 1991
filing date -
Dec 22, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to acrylic fiber strands suitable for use in production of carbon fibers and to a process for the production of the acrylic fiber used, in which an aminopolysiloxane and a dialkyl sulfosuccinate are coated on acrylic polymer filaments which permits the avoidance of problems such as the generation of static electricity and the deposition of an oil scum on rollers and guides. Because of such effects, excellent bundlability of fiber strands and stable operation of the carbonization process can be attained. The acrylic fiber strands thus obtained can be used for the production of high quality carbon fiber strands.
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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TOHO RAYON CO LTD | CHUO-KU TOKYO |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Takahashi, Hayashi | Shizuoka, JP | 6 | 19 |
# of filed Patents : 6 Total Citations : 19 | |||
Yamamoto, Kazuhiro | Shizuoka, JP | 235 | 2532 |
# of filed Patents : 235 Total Citations : 2532 |
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Patent Citation Ranking
- 3 Citation Count
- B05D Class
- 4.30 % this patent is cited more than
- 31 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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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