CN103351536A - Flame-retardant type ethylene propylene rubber cable material - Google Patents
Flame-retardant type ethylene propylene rubber cable material Download PDFInfo
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- CN103351536A CN103351536A CN2013102561472A CN201310256147A CN103351536A CN 103351536 A CN103351536 A CN 103351536A CN 2013102561472 A CN2013102561472 A CN 2013102561472A CN 201310256147 A CN201310256147 A CN 201310256147A CN 103351536 A CN103351536 A CN 103351536A
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- 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 16
- 239000003063 flame retardant Substances 0.000 title claims abstract description 16
- 229920000181 Ethylene propylene rubber Polymers 0.000 title abstract description 11
- 239000000463 material Substances 0.000 title abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 7
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 4
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 12
- 230000000996 additive effect Effects 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000005060 rubber Substances 0.000 claims description 8
- 229920001897 terpolymer Polymers 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 229910017083 AlN Inorganic materials 0.000 claims description 6
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 6
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 6
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 6
- XTDAIYZKROTZLD-UHFFFAOYSA-N boranylidynetantalum Chemical compound [Ta]#B XTDAIYZKROTZLD-UHFFFAOYSA-N 0.000 claims description 6
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 6
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 6
- OKISUZLXOYGIFP-UHFFFAOYSA-N 4,4'-dichlorobenzophenone Chemical compound C1=CC(Cl)=CC=C1C(=O)C1=CC=C(Cl)C=C1 OKISUZLXOYGIFP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 229940045641 monobasic sodium phosphate Drugs 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- -1 β-methoxy ethoxy Chemical group 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 240000005373 Panax quinquefolius Species 0.000 claims description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 230000003712 anti-aging effect Effects 0.000 abstract description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 abstract description 2
- 230000035882 stress Effects 0.000 abstract description 2
- BOOBDAVNHSOIDB-UHFFFAOYSA-N (2,3-dichlorobenzoyl) 2,3-dichlorobenzenecarboperoxoate Chemical compound ClC1=CC=CC(C(=O)OOC(=O)C=2C(=C(Cl)C=CC=2)Cl)=C1Cl BOOBDAVNHSOIDB-UHFFFAOYSA-N 0.000 abstract 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 abstract 1
- 229920002943 EPDM rubber Polymers 0.000 abstract 1
- 239000004677 Nylon Substances 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- QANIADJLTJYOFI-UHFFFAOYSA-K aluminum;magnesium;carbonate;hydroxide;hydrate Chemical compound O.[OH-].[Mg+2].[Al+3].[O-]C([O-])=O QANIADJLTJYOFI-UHFFFAOYSA-K 0.000 abstract 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 abstract 1
- 235000019799 monosodium phosphate Nutrition 0.000 abstract 1
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- 230000036314 physical performance Effects 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a flame-retardant type ethylene propylene rubber cable material. The flame-retardant type ethylene propylene rubber cable material comprises the following materials in parts by weight: 100-110 parts of LANXESS 3950 ethylene-propylene-diene rubber, 3-5 parts of triethylene glycol diisooctoate, 18-20 parts of barium sulfate powder, 10-15 parts of hydrotalcite powder, 3-4 parts of antimonous oxide, 3-4 parts of sodium dihydrogen phosphate, 4-6 parts of chlorinated paraffin, 6-10 parts of nylon acid di-n-butyl ester, 1-2 parts of anti-ageing agent DFC (Dense Fiber Component)-34, 1-2 parts of 2-thiol-based benzimidazole, 3-4 parts of aluminum hydroxide, 1-2 parts of vinyl tri(beta-methoxyl ethyoxyl) silicane, 0.8-1 part of vulcanizing agent DCBP (Dichloro Benzoyl Peroxide), 1-2 parts of dodecyl dimethyl betaine, 2-3 parts of accelerant PZ and 25-30 parts of performance additives. The cable material provided by the invention has the advantages of excellent physical performances, stable dimension, low shrinkage rate, strong stress at definite elongation, strong hardness and strong abrasion resistance, good high and low temperature resistance, good oil resistance, good heat resistance, good ozone resistance and good ageing resistance. Moreover, the cable material disclosed by the invention is very strong in flame resistance, is particularly applicable to various high-temperature environments, and is safe and reliable.
Description
Technical field
The present invention relates generally to a kind of CABLE MATERIALS, relates in particular to a kind of flame retardant type epr cable compound.
Background technology
Ethylene-propylene rubber(EPR) has excellent anti-weather, anti-ozone, heat-resisting, acid and alkali-resistance, water-fast steam, colour stability, electrical property, oil-filled property and normal temperature mobile.But the ethylene-propylene rubber(EPR) goods can of short duration or intermittently use under 150-200 ℃ at 120 ℃ of lower life-time service.Add suitable anti-aging agent and can improve its use temperature.Terpolymer EP rubber with peroxide crosslinking can more use under the exacting terms.Terpolymer EP rubber can reach more than the 150h and not chap under the condition of ozone concn 50pphm, stretching 30%.
Because ethylene-propylene rubber(EPR) lacks polarity, degree of unsaturation is low, thereby various polarity chemical are all had preferably anti-patience such as alcohol, acid, alkali, oxygenant, refrigeration agent, washing composition, vegetable and animals oils, ketone and fat etc.; But belong to less stable in solvent (such as gasoline, benzene etc.) and the mineral oil at fat genus and virtue.Therefore improve the over-all properties of traditional ethylene-propylene rubber(EPR) by adding New-type adjuvant, further improve the quality of CABLE MATERIALS highly significant.
Summary of the invention
The object of the invention just provides a kind of flame retardant type epr cable compound.
The present invention is achieved by the following technical solutions:
A kind of flame retardant type epr cable compound, it is comprised of the raw material of following weight parts:
The bright Sheng 9650 terpolymer EP rubber 100-110 of Germany, triglycol two 2-ethylhexoate 3-5, blaue fixe 18-20, neatly stone flour 10-15, antimonous oxide 3-4, SODIUM PHOSPHATE, MONOBASIC 3-4, clorafin 4-6, di-butyl nylonic acid ester 6-10, antioxidant D FC-34 1-2,2-thiol group benzimidazolyl 1-2, aluminium hydroxide 3-4, vinyl three (β-methoxy ethoxy) silane 1-2, vulcanizing agent DCBP0.8-1, Varion CDG-K 1-2, promotor PZ2-3, modified additive 25-30;
Described modified additive is comprised of the raw material of following weight parts:
Chlorinatedpolyethylene 90-100, turps 4-5, flower bulb alkali 2-3, sodium polyacrylate 1-3, mistake tantalum boride 2-3, aluminium nitride 3-5, Dodecyl trimethyl ammonium chloride 1-2;
The above-mentioned tantalum boride of crossing is mixed with aluminium nitride, add chlorinatedpolyethylene, 70-90 ℃ of lower the stirring 20-30 minute, be cooled to normal temperature, add sodium polyacrylate, turps, flower bulb alkali, fully stir, Dodecyl trimethyl ammonium chloride is heated to 90-100 ℃, adds, 80-100 rev/min dispersed with stirring 3-5 minute, oven dry namely gets described modified additive.
A kind of flame retardant type epr cable compound preparation method may further comprise the steps:
Above-mentioned blaue fixe is mixed with triglycol two 2-ethylhexoates, at 80-90 ℃ of lower heated and stirred 3-5 minute, be cooled to normal temperature, add Varion CDG-K, aluminium hydroxide, 200-300 rev/min was stirred 3-4 minute; Bright Sheng 9650 terpolymer EP rubbers of above-mentioned Germany are put into mill, and 75-80 ℃ was descended mixing 4-6 minute; Raw material after the above-mentioned processing is mixed, adding each raw material except vulcanizing agent DCBP, promotor PZ mixes, mixing 4-6 minute, add again each raw material of residue, after thin-pass 6-7 time, extruder plastication granulation, the extrusion temperature of extruding machine are 155-175 ℃, namely get described flame retardant type epr cable compound.
Advantage of the present invention is:
The CABLE MATERIALS physicals that the present invention produces is excellent, dimensional stabilizing, and shrinking percentage is low, product stress at definite elongation, hardness, wear resisting property are strong, have good high-low temperature resistant, oil resistant, heat-resisting, anti-ozone, ageing-resistant performance, strengthened the consistency of each storeroom by adding modified additive, further improved the tearing toughness, screen resilience performance of finished product etc., CABLE MATERIALS of the present invention has very strong flame retardant properties, be specially adapted to various hot environments and use, safe and reliable.
Embodiment
Embodiment 1
A kind of flame retardant type epr cable compound, it is comprised of the raw material of following weight parts (kilogram):
Bright Sheng 9650 terpolymer EP rubbers 110 of Germany, triglycol two 2-ethylhexoates 5, blaue fixe 20, neatly stone flour 15, antimonous oxide 3, SODIUM PHOSPHATE, MONOBASIC 3-4, clorafin 6, di-butyl nylonic acid ester 10, antioxidant D FC-34 1,2-thiol group benzimidazolyl 2, aluminium hydroxide 4, vinyl three (β-methoxy ethoxy) silane 2, vulcanizing agent DCBP0.8, Varion CDG-K 1, promotor PZ3, modified additive 30;
Described modified additive is comprised of the raw material of following weight parts:
Chlorinatedpolyethylene 100, turps 5, flower bulb alkali 3, sodium polyacrylate 3, mistake tantalum boride 2, aluminium nitride 5, Dodecyl trimethyl ammonium chloride 2;
The above-mentioned tantalum boride of crossing is mixed with aluminium nitride, add chlorinatedpolyethylene, 90 ℃ of lower stirrings 30 minutes, be cooled to normal temperature, add sodium polyacrylate, turps, flower bulb alkali, fully stir, Dodecyl trimethyl ammonium chloride is heated to 100 ℃, adds, 100 rev/mins of dispersed with stirring 5 minutes, oven dry namely gets described modified additive.
A kind of flame retardant type epr cable compound preparation method may further comprise the steps:
Above-mentioned blaue fixe is mixed with triglycol two 2-ethylhexoates, 90 ℃ of lower heated and stirred 5 minutes, be cooled to normal temperature, add Varion CDG-K, aluminium hydroxide, 300 rev/mins were stirred 4 minutes; Bright Sheng 9650 terpolymer EP rubbers of above-mentioned Germany are put into mill, and 80 ℃ were descended mixing 4 minutes; Raw material after the above-mentioned processing is mixed, and each raw material that adds except vulcanizing agent DCBP, promotor PZ mixes mixing 4 minutes, add again each raw material of residue, after the thin-pass 6 times, the extruder plastication granulation, the extrusion temperature of extruding machine is 175 ℃, namely gets described flame retardant type epr cable compound.
Performance test:
Hardness (Shao Shi A): 65;
Tensile strength (MPa): 16.2;
Elongation at break (%): 485;
Oil-proofness: 100 ℃ * 50h of 20# machine oil, elongation at break conservation rate 82.5%, tensile strength conservation rate 84.1%;
Anti-ozone: 26 ℃, 24h, ozone concn 0.026%, without cracking;
Ageing-resistant: 120 ℃, 100h, tensile strength conservation rate 92.1%, elongation at break conservation rate 94.2%.
Claims (2)
1. flame retardant type epr cable compound is characterized in that what it was comprised of the raw material of following weight parts:
The bright Sheng 9650 terpolymer EP rubber 100-110 of Germany, triglycol two 2-ethylhexoate 3-5, blaue fixe 18-20, neatly stone flour 10-15, antimonous oxide 3-4, SODIUM PHOSPHATE, MONOBASIC 3-4, clorafin 4-6, di-butyl nylonic acid ester 6-10, antioxidant D FC-34 1-2,2-thiol group benzimidazolyl 1-2, aluminium hydroxide 3-4, vinyl three (β-methoxy ethoxy) silane 1-2, vulcanizing agent DCBP0.8-1, Varion CDG-K 1-2, promotor PZ2-3, modified additive 25-30;
Described modified additive is comprised of the raw material of following weight parts:
Chlorinatedpolyethylene 90-100, turps 4-5, flower bulb alkali 2-3, sodium polyacrylate 1-3, mistake tantalum boride 2-3, aluminium nitride 3-5, Dodecyl trimethyl ammonium chloride 1-2;
The above-mentioned tantalum boride of crossing is mixed with aluminium nitride, add chlorinatedpolyethylene, 70-90 ℃ of lower the stirring 20-30 minute, be cooled to normal temperature, add sodium polyacrylate, turps, flower bulb alkali, fully stir, Dodecyl trimethyl ammonium chloride is heated to 90-100 ℃, adds, 80-100 rev/min dispersed with stirring 3-5 minute, oven dry namely gets described modified additive.
2. flame retardant type epr cable compound preparation method as claimed in claim 1 is characterized in that may further comprise the steps:
Above-mentioned blaue fixe is mixed with triglycol two 2-ethylhexoates, at 80-90 ℃ of lower heated and stirred 3-5 minute, be cooled to normal temperature, add Varion CDG-K, aluminium hydroxide, 200-300 rev/min was stirred 3-4 minute; Bright Sheng 9650 terpolymer EP rubbers of above-mentioned Germany are put into mill, and 75-80 ℃ was descended mixing 4-6 minute; Raw material after the above-mentioned processing is mixed, adding each raw material except vulcanizing agent DCBP, promotor PZ mixes, mixing 4-6 minute, add again each raw material of residue, after thin-pass 6-7 time, extruder plastication granulation, the extrusion temperature of extruding machine are 155-175 ℃, namely get described flame retardant type epr cable compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310256147.2A CN103351536B (en) | 2013-06-25 | 2013-06-25 | A kind of Flame-retardant type ethylene propylene rubber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310256147.2A CN103351536B (en) | 2013-06-25 | 2013-06-25 | A kind of Flame-retardant type ethylene propylene rubber cable |
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| Publication Number | Publication Date |
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| CN103351536A true CN103351536A (en) | 2013-10-16 |
| CN103351536B CN103351536B (en) | 2016-03-02 |
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| CN201310256147.2A Active CN103351536B (en) | 2013-06-25 | 2013-06-25 | A kind of Flame-retardant type ethylene propylene rubber cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372604A (en) * | 2014-11-04 | 2015-02-25 | 张桂华 | Fiber fabric fire retardant |
| CN106057325A (en) * | 2016-07-16 | 2016-10-26 | 沈阳艾克虎牌线缆有限公司 | Mineral insulated fireproof cable with heat resistance of 1300 DEG C |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219960A (en) * | 2011-05-20 | 2011-10-19 | 上海台安工程实业有限公司 | Inflaming-retarding aging-resisting type ethylene propylene diene monomer rubber waterproofing roll |
| CN102775689A (en) * | 2011-05-13 | 2012-11-14 | 远东电缆有限公司 | Torsion and cold resistant flame-retardant sheath rubber for wind power generation flexible cable |
| CN102964698A (en) * | 2012-11-13 | 2013-03-13 | 安徽春辉仪表线缆集团有限公司 | High cold-resistance ethylene propylene diene copolymer insulated cable material and preparation method thereof |
-
2013
- 2013-06-25 CN CN201310256147.2A patent/CN103351536B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775689A (en) * | 2011-05-13 | 2012-11-14 | 远东电缆有限公司 | Torsion and cold resistant flame-retardant sheath rubber for wind power generation flexible cable |
| CN102219960A (en) * | 2011-05-20 | 2011-10-19 | 上海台安工程实业有限公司 | Inflaming-retarding aging-resisting type ethylene propylene diene monomer rubber waterproofing roll |
| CN102964698A (en) * | 2012-11-13 | 2013-03-13 | 安徽春辉仪表线缆集团有限公司 | High cold-resistance ethylene propylene diene copolymer insulated cable material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372604A (en) * | 2014-11-04 | 2015-02-25 | 张桂华 | Fiber fabric fire retardant |
| CN106057325A (en) * | 2016-07-16 | 2016-10-26 | 沈阳艾克虎牌线缆有限公司 | Mineral insulated fireproof cable with heat resistance of 1300 DEG C |
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| Publication number | Publication date |
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| CN103351536B (en) | 2016-03-02 |
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Address after: 210000 Fangjiaying 800, Gulou District, Nanjing City, Jiangsu Province Patentee after: Zhang Lixia Address before: 163512 No. 575 Xinglongshan Tun, Xinglongshan Village, Xingshugang Town, Honggang District, Daqing City, Heilongjiang Province Patentee before: Zhang Lixia |
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Effective date of registration: 20191023 Address after: 314500 Tongxiang, Zhejiang City Industrial Park, the town of Stephen Patentee after: Tongxiang Guangsheng Plastic Industry Co., Ltd. Address before: 210000 800 fangjiaying, Gulou District, Nanjing, Jiangsu Province Patentee before: Zhang Lixia |
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Address after: 314500 economic and Industrial Park, Yongxing North Road, zhouquan Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Tongxiang Guangsheng Plastic Industry Co., Ltd Address before: 314500 Tongxiang, Zhejiang City Industrial Park, the town of Stephen Patentee before: TONGXIANG GUANGSHENG PLASTIC INDUSTRY Co.,Ltd. |