CN104018243A - 一种阻燃纤维及其制备方法 - Google Patents
一种阻燃纤维及其制备方法 Download PDFInfo
- Publication number
- CN104018243A CN104018243A CN201410186603.5A CN201410186603A CN104018243A CN 104018243 A CN104018243 A CN 104018243A CN 201410186603 A CN201410186603 A CN 201410186603A CN 104018243 A CN104018243 A CN 104018243A
- Authority
- CN
- China
- Prior art keywords
- fire resistance
- polyacrylonitrile
- resistance fibre
- fiber
- poly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 118
- 239000003063 flame retardant Substances 0.000 title claims abstract description 42
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000009987 spinning Methods 0.000 claims abstract description 58
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 36
- 229920002678 cellulose Polymers 0.000 claims abstract description 24
- 239000001913 cellulose Substances 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 52
- 230000001112 coagulating effect Effects 0.000 claims description 42
- 239000000178 monomer Substances 0.000 claims description 34
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- 239000001301 oxygen Substances 0.000 claims description 23
- 229920001577 copolymer Polymers 0.000 claims description 17
- 229920002480 polybenzimidazole Polymers 0.000 claims description 16
- 239000002904 solvent Substances 0.000 claims description 16
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 16
- -1 poly(isophthaloyl metaphenylene diamine Chemical compound 0.000 claims description 15
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 12
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 9
- 229920001519 homopolymer Polymers 0.000 claims description 8
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 claims description 8
- 229940124530 sulfonamide Drugs 0.000 claims description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 6
- 239000001110 calcium chloride Substances 0.000 claims description 6
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 6
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 5
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 5
- NAYYNDKKHOIIOD-UHFFFAOYSA-N phthalamide Chemical compound NC(=O)C1=CC=CC=C1C(N)=O NAYYNDKKHOIIOD-UHFFFAOYSA-N 0.000 claims description 5
- PBIDWHVVZCGMAR-UHFFFAOYSA-N 1-methyl-3-prop-2-enyl-2h-imidazole Chemical compound CN1CN(CC=C)C=C1 PBIDWHVVZCGMAR-UHFFFAOYSA-N 0.000 claims description 4
- LVHMJHXXLZIOOJ-UHFFFAOYSA-N C(CCC)N1CN(C=C1)C.[Br] Chemical compound C(CCC)N1CN(C=C1)C.[Br] LVHMJHXXLZIOOJ-UHFFFAOYSA-N 0.000 claims description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 4
- KAIPKTYOBMEXRR-UHFFFAOYSA-N 1-butyl-3-methyl-2h-imidazole Chemical compound CCCCN1CN(C)C=C1 KAIPKTYOBMEXRR-UHFFFAOYSA-N 0.000 claims description 3
- RCAIAWXCDYJARE-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;formate Chemical class [O-]C=O.CC[NH+]1CN(C)C=C1 RCAIAWXCDYJARE-UHFFFAOYSA-N 0.000 claims description 3
- JHUFGBSGINLPOW-UHFFFAOYSA-N 3-chloro-4-(trifluoromethoxy)benzoyl cyanide Chemical compound FC(F)(F)OC1=CC=C(C(=O)C#N)C=C1Cl JHUFGBSGINLPOW-UHFFFAOYSA-N 0.000 claims description 3
- JPAOMENBKRZQDR-UHFFFAOYSA-N CC=CC.[Na] Chemical compound CC=CC.[Na] JPAOMENBKRZQDR-UHFFFAOYSA-N 0.000 claims description 3
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical group CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 229920005604 random copolymer Polymers 0.000 claims description 3
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 claims description 3
- 150000003456 sulfonamides Chemical class 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 21
- 238000002156 mixing Methods 0.000 abstract description 15
- 229910052736 halogen Inorganic materials 0.000 abstract description 4
- 150000002367 halogens Chemical class 0.000 abstract description 4
- 231100000053 low toxicity Toxicity 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 60
- 230000015572 biosynthetic process Effects 0.000 description 20
- 238000009835 boiling Methods 0.000 description 20
- 238000009998 heat setting Methods 0.000 description 20
- 239000007787 solid Substances 0.000 description 20
- 238000003756 stirring Methods 0.000 description 20
- 238000007334 copolymerization reaction Methods 0.000 description 7
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 description 4
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 238000010036 direct spinning Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- IAZSXUOKBPGUMV-UHFFFAOYSA-N 1-butyl-3-methyl-1,2-dihydroimidazol-1-ium;chloride Chemical compound [Cl-].CCCC[NH+]1CN(C)C=C1 IAZSXUOKBPGUMV-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001617 Vinyon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410186603.5A CN104018243B (zh) | 2014-05-05 | 2014-05-05 | 一种阻燃纤维及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410186603.5A CN104018243B (zh) | 2014-05-05 | 2014-05-05 | 一种阻燃纤维及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104018243A true CN104018243A (zh) | 2014-09-03 |
CN104018243B CN104018243B (zh) | 2016-03-30 |
Family
ID=51435227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410186603.5A Active CN104018243B (zh) | 2014-05-05 | 2014-05-05 | 一种阻燃纤维及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104018243B (zh) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106498542A (zh) * | 2016-11-22 | 2017-03-15 | 浙江金霞新材料科技有限公司 | 一种无染环保阻燃纤维及其制备方法 |
CN106948023A (zh) * | 2017-04-01 | 2017-07-14 | 天津工业大学 | 一种含有金属离子螯合物的阻燃聚丙烯腈纳米纤维的制备方法 |
CN106948029A (zh) * | 2017-05-04 | 2017-07-14 | 冯志容 | 一种复合纤维 |
CN106987967A (zh) * | 2017-02-26 | 2017-07-28 | 浙江峰赫纺织有限公司 | 一种具有阻燃抗菌功能的纺织面料 |
CN107022808A (zh) * | 2017-04-14 | 2017-08-08 | 东华大学 | 一种舒适性阻燃纤维及其制备方法 |
CN108179495A (zh) * | 2017-09-25 | 2018-06-19 | 南通纺织丝绸产业技术研究院 | 一种共混阻燃腈纶纤维及其制备方法 |
CN108641102A (zh) * | 2018-06-20 | 2018-10-12 | 北京林业大学 | 一种高效纤维素溶剂体系及其用途 |
CN109208103A (zh) * | 2018-08-31 | 2019-01-15 | 龙丝(上海)新材料科技有限公司 | 一种阻燃纤维素纤维的制备方法 |
CN110541208A (zh) * | 2019-09-29 | 2019-12-06 | 东华大学 | 一种聚间苯二甲酰间苯二胺/聚丙烯腈共混纤维的制备方法 |
CN116065250A (zh) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | 聚丙烯腈纺丝原液及其制备方法和应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1455034A (zh) * | 2002-04-29 | 2003-11-12 | 中国石油化工股份有限公司 | 阻燃丙烯腈共聚物纤维及其制造方法 |
CN1566421A (zh) * | 2003-06-12 | 2005-01-19 | 中国石油化工股份有限公司 | 阻燃聚丙烯腈纤维及其制造方法 |
KR100854645B1 (ko) * | 2003-07-25 | 2008-08-27 | 가부시키가이샤 가네카 | 난연성 폴리에스테르계 인공 모발용 섬유 |
CN103242535A (zh) * | 2013-04-28 | 2013-08-14 | 四川大学 | 一种线型水溶性聚磷腈高分子粘胶共混改性阻燃剂 |
-
2014
- 2014-05-05 CN CN201410186603.5A patent/CN104018243B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1455034A (zh) * | 2002-04-29 | 2003-11-12 | 中国石油化工股份有限公司 | 阻燃丙烯腈共聚物纤维及其制造方法 |
CN1566421A (zh) * | 2003-06-12 | 2005-01-19 | 中国石油化工股份有限公司 | 阻燃聚丙烯腈纤维及其制造方法 |
KR100854645B1 (ko) * | 2003-07-25 | 2008-08-27 | 가부시키가이샤 가네카 | 난연성 폴리에스테르계 인공 모발용 섬유 |
CN103242535A (zh) * | 2013-04-28 | 2013-08-14 | 四川大学 | 一种线型水溶性聚磷腈高分子粘胶共混改性阻燃剂 |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106498542A (zh) * | 2016-11-22 | 2017-03-15 | 浙江金霞新材料科技有限公司 | 一种无染环保阻燃纤维及其制备方法 |
CN106987967A (zh) * | 2017-02-26 | 2017-07-28 | 浙江峰赫纺织有限公司 | 一种具有阻燃抗菌功能的纺织面料 |
CN106948023A (zh) * | 2017-04-01 | 2017-07-14 | 天津工业大学 | 一种含有金属离子螯合物的阻燃聚丙烯腈纳米纤维的制备方法 |
CN107022808B (zh) * | 2017-04-14 | 2019-06-11 | 东华大学 | 一种舒适性阻燃纤维及其制备方法 |
CN107022808A (zh) * | 2017-04-14 | 2017-08-08 | 东华大学 | 一种舒适性阻燃纤维及其制备方法 |
CN106948029A (zh) * | 2017-05-04 | 2017-07-14 | 冯志容 | 一种复合纤维 |
CN108179495A (zh) * | 2017-09-25 | 2018-06-19 | 南通纺织丝绸产业技术研究院 | 一种共混阻燃腈纶纤维及其制备方法 |
CN108641102A (zh) * | 2018-06-20 | 2018-10-12 | 北京林业大学 | 一种高效纤维素溶剂体系及其用途 |
CN108641102B (zh) * | 2018-06-20 | 2020-12-08 | 北京林业大学 | 一种高效纤维素溶剂体系及其用途 |
CN109208103A (zh) * | 2018-08-31 | 2019-01-15 | 龙丝(上海)新材料科技有限公司 | 一种阻燃纤维素纤维的制备方法 |
CN109208103B (zh) * | 2018-08-31 | 2020-12-08 | 龙丝(上海)新材料科技有限公司 | 一种阻燃纤维素纤维的制备方法 |
CN110541208A (zh) * | 2019-09-29 | 2019-12-06 | 东华大学 | 一种聚间苯二甲酰间苯二胺/聚丙烯腈共混纤维的制备方法 |
CN110541208B (zh) * | 2019-09-29 | 2022-01-18 | 东华大学 | 一种聚间苯二甲酰间苯二胺/聚丙烯腈共混纤维的制备方法 |
CN116065250A (zh) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | 聚丙烯腈纺丝原液及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN104018243B (zh) | 2016-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104018243B (zh) | 一种阻燃纤维及其制备方法 | |
Park et al. | Precursors and manufacturing of carbon fibers | |
Kaur et al. | Producing high‐quality precursor polymer and fibers to achieve theoretical strength in carbon fibers: A review | |
Ingildeev et al. | Novel cellulose/polymer blend fibers obtained using ionic liquids | |
CN100549254C (zh) | 一种聚丙烯腈基碳纤维原丝的制备方法 | |
JP2013532238A (ja) | リグニン/ポリアクリロニトリルを含有するドープおよび繊維、ならびにこれらの製造方法 | |
CN105002592B (zh) | 一种醋腈纤维及其制备方法 | |
CN104630923A (zh) | 一种溶液原位聚合技术制备碳纳米管改性聚丙烯腈纤维的方法 | |
CN103266381A (zh) | 一种吸湿发热聚丙烯腈纱线的制备方法 | |
KR102586137B1 (ko) | 섬유 강화를 위한 첨가제 | |
CN101435119B (zh) | 一种改性聚丙烯腈纤维的制备方法 | |
CN113321803B (zh) | 一种杂环芳纶纺丝原液的改性方法、改性杂环芳纶纺丝原液及应用 | |
CN103952797A (zh) | 一种湿法高强型聚丙烯腈基碳纤维的制备方法 | |
CN109468688A (zh) | 纤维素纤维的纺丝方法 | |
CN107022808B (zh) | 一种舒适性阻燃纤维及其制备方法 | |
CN1566421A (zh) | 阻燃聚丙烯腈纤维及其制造方法 | |
CN100362149C (zh) | 一种聚丙烯腈纤维的湿法纺丝方法 | |
CN107541808B (zh) | 一种采用湿法纺丝工艺制备醋腈长丝的方法 | |
US10633770B2 (en) | Coagulation map for fiber spinning | |
CN110938990B (zh) | 一种阻燃腈纶及其制备方法 | |
CN100362151C (zh) | 聚丙烯腈纤维的湿法纺丝方法 | |
JP7315378B2 (ja) | メタ型全芳香族ポリアミド繊維及びその製造方法 | |
KR20110130186A (ko) | 보풀발생이 억제되는 탄소섬유의 제조방법 | |
JP6523026B2 (ja) | 黒色メタ型全芳香族ポリアミド繊維 | |
US3737507A (en) | Process for acrylic fibers of improved properties |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20171116 Address after: 315336 No. 339 Binhai four road, Hangzhou Bay New District, Zhejiang, Ningbo Co-patentee after: Donghua University Patentee after: Hi Tech bio based materials engineering technology (Ningbo) Co., Ltd. Address before: 201620 Songjiang District City, new town, North Road, No. 2999 people Patentee before: Donghua University |
|
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Wu Kaijian Inventor after: Zhang Yumei Inventor after: Wang Huaping Inventor after: Wang Lejun Inventor after: Yao Yongbo Inventor after: Liu Yining Inventor after: Yu Jinchao Inventor after: Liu Hongcai Inventor after: Cheng Haiming Inventor after: Wang Jianning Inventor after: Yang Xi Inventor before: Wu Kaijian Inventor before: Yao Yongbo Inventor before: Yu Jinchao Inventor before: Liu Hongcai Inventor before: Cheng Haiming Inventor before: Wang Jianning Inventor before: Yang Xi Inventor before: Zhang Yumei Inventor before: Wang Huaping |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210526 Address after: Room 1115, Zhongfu building, 99 Jianguo Road, Chaoyang District, Beijing 100020 Patentee after: HI-TECH FIBER Group Corp. Patentee after: DONGHUA University Address before: 315336 No.339 Binhai 4th Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Patentee before: HENGTIAN BIO-BASED MATERIALS ENGINEERING TECHNOLOGY (NINGBO) Co.,Ltd. Patentee before: DONGHUA University |