CN100465232C - Nylon 66 nano composite material and preparation method thereof - Google Patents
Nylon 66 nano composite material and preparation method thereof Download PDFInfo
- Publication number
- CN100465232C CN100465232C CNB2006100257637A CN200610025763A CN100465232C CN 100465232 C CN100465232 C CN 100465232C CN B2006100257637 A CNB2006100257637 A CN B2006100257637A CN 200610025763 A CN200610025763 A CN 200610025763A CN 100465232 C CN100465232 C CN 100465232C
- Authority
- CN
- China
- Prior art keywords
- nano
- inorganic particle
- composite material
- preparation
- elastomerics
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a composite nanometer material and making method of polyhexamethylene adipamide (nylon 66), which comprises the following parts: 100wt% nylon 66, 5-20wt% elastic body and 5-30wt% inorganic nanometer particle, wherein these materials are blended to fuse and squeeze under 260-280 deg. c. The invention balances the rigidity, flexibility and fire resistance and size stability, which expands the applying domain of nylon 66.
Description
Technical field
The present invention relates to a kind of polyhexamethylene adipamide (nylon 66) nano composite material and preparation method thereof.
Background technology
Nylon 66, owing to there is that resistance to impact shock is low under poor heat resistance, dry state and the low temperature, water-intake rate is high, product size is stable and defective such as poor electrical performance, the restriction that its range of application has been subjected to.For widening the range of application of nylon 66, the method for various modification of nylon 66 arises.As adopt thermoplastic elastic body to come toughened Nylon 66 (S.V.Nair etal. as toughner, Journal of Materials Scienc, 1998,33:3455-3464), though this method improves the impelling strength of nylon 66, the thermotolerance and the dimensional stability of material all descend; Adopt inorganic rigid filler (as glass fibre, kaolin and/or wollastonite etc.) to improve dimensional stability and its rigidity of raising (K.Nodo et al. of nylon 66, Polymer, 2001,42:5803-5811), though this method is improved the dimensional stability of nylon 66 and improved its rigidity, the impelling strength of material descends; And adopt inorganic nano material to improve the rigidity and the thermotolerance (Chinese patent 00129849.6 and 03106526.0) of nylon 66, though this method can fine its intended purposes that reaches, the impelling strength of material not at all improvement.
Take a broad view of the method for modifying of existing nylon 66, it is attended to one thing and lose sight of another often.That is, a certain performance of nylon 66 is improved, and other performance does not improve or poor all the better.Therefore, the nylon 66 that how to obtain high comprehensive performance is technical issues that need to address of the present invention.
Summary of the invention
One of the object of the invention is, the polyhexamethylene adipamide nano composite material of a kind of high comprehensive performance (rigidity, toughness, thermotolerance and the dimensional stability that are material all obtain to improve) is provided;
Two of the object of the invention is, a kind of method for preparing above-mentioned materials is provided.
The said polyhexamethylene adipamide nano composite material of the present invention, it melt extrudes and gets by the following main materials blend and in 260～280 ℃,
Polyhexamethylene adipamide 100 mass fractions
Elastomerics 5～20 mass fractions
Nano inorganic particle 5～30 mass fractions
Wherein: the relative viscosity of said polyhexamethylene adipamide is 2.7～2.9;
Said elastomerics is the ethylene/propylene multipolymer (EPR-g-MAH of maleic anhydride graft, 416D, Du Pont), the ethylene/octene (EOC-g-MAH of maleic anhydride graft, 493D, Du Pont), the styrene/butadiene/styrene copolymers (SBS-g-MAH of maleic anhydride graft, FG1901, section rises) or ethene/acrylic ester/glycidyl methacrylate (AX8900, AtoFina);
Said nano inorganic particle is nano-calcium carbonate or nano silicon.
In a preferred version of the present invention, as elastomeric grafts, its percentage of grafting is 0.6～1.2% (said percentage of grafting is meant the parts by weight of grafted maleic anhydride on the unit weight elastomerics);
In another preferred version of the present invention, said elastomerics is the ethylene/octene (EOC-g-GMA) of the ethylene/propylene multipolymer (EPR-g-MAH) or the glycidyl methacrylate graft of maleic anhydride graft;
In another preferred version of the present invention, said nano inorganic particle is that median size is that silicon-dioxide or the median size of 5nm～30nm is the lime carbonate of 15nm～90nm;
Preferred plan of the present invention is: said polyhexamethylene adipamide nano composite material, and it melt extrudes and gets by the following main materials blend and in 260～280 ℃,
Polyhexamethylene adipamide 100 mass fractions
Elastomerics 5～20 mass fractions
Nano inorganic particle 5～30 mass fractions
Lubricant 0.3～0.5 mass fraction
Oxidation inhibitor 0.2～0.5 mass fraction
Wherein: said polyhexamethylene adipamide, elastomerics and nano inorganic particulate implication are described identical with preamble;
Said lubricant is calcium stearate, polyethylene wax or ethylene bis stearamide, or the mixture of being made up of them;
Said oxidation inhibitor is four [β-(3 ', 5 '-di-t-butyl-4 '-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), N, [3-(3 for N '-two, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine (oxidation inhibitor 1098) or three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester (oxidation inhibitor 168), or the mixture of forming by them.
Raw material and reagent related among the present invention are commercially available product.
The method for preparing the said polyhexamethylene adipamide nano composite material of the present invention, its key step is:
Nano inorganic particle, elastomerics and polyhexamethylene adipamide added in the mixing tank in previously described ratio mix, then the gained mixture is added screw extrusion press, melt extrude in 260～280 ℃ and promptly get target compound;
In the present invention, recommend to use twin screw extruder, and the rotating speed of screw rod should be controlled at 120～480rpm.
For the performance that makes prepared polyhexamethylene adipamide nano composite material is more excellent, processing can organise earlier to used nano inorganic particle.Therefore, the preferred method of the said polyhexamethylene adipamide nano composite material of preparation the present invention, it comprises the steps:
(1) place the sand mill medium sand to wear into the nano inorganic particle slurry nano inorganic particle and dispersion agent, under 70～80 ℃ of conditions, add properties-correcting agent, the add-on of properties-correcting agent is 2～5% of a nano inorganic particle weight, 70～80 ℃ of insulations 2～4 hours, filter, dry, pulverize the nano inorganic particle that obtains organising;
(2) the nano inorganic particle, elastomerics and the polyhexamethylene adipamide that organise that will be made by step (1) adds in the mixing tank in previously described ratio and mixes, then the gained mixture is added twin screw extruder, melt extrude in 260～280 ℃ and promptly get target compound;
Wherein: said properties-correcting agent is silane coupling agent [as being γ-aminopropyl triethoxysilane (KH550), γ-glycidyl ether oxygen propyl trimethoxy silicane (KH560) or γ-methyl allyl acyloxypropyl trimethoxysilane (KH570)], titanate coupling agent (as sec.-propyl three (dioctyl pyrophosphoryl base) titanic acid ester, two (dioctylphyrophosphoric acid ester) oxyacetate titanic acid ester quaternary amine) or stearate (as calcium stearate, sodium stearate).
The dispersion agent of recommending to use is ethanol, tetrahydrofuran (THF), hexanaphthene or water.
The invention provides a kind of polyhexamethylene adipamide (nylon 66) nano composite material with good rigidity, toughness, thermotolerance and dimensional stability.With existing nylon 66 material modified comparing, the present invention well balance rigidity, toughness, thermotolerance and the dimensional stability of nylon 66, thereby provide the good nylon of a kind of over-all properties 66 nano composite materials, widened the Application Areas of nylon 66.
Embodiment
The present invention is further elaborated below by embodiment, its objective is to be better understanding content of the present invention.Therefore, the cited case does not limit protection scope of the present invention:
Embodiment 1
The nanometer titanium dioxide silico-organic is handled:
With particle diameter is the silicon-dioxide (SiO of 20nm
2) particle and ethanol presses mass ratio and added in the high speed sand mill sand milling at 1: 12 1 hour, elimination pick pearl gets nanometer SiO
2The particle slurry is heated to 70 ℃ with water bath with thermostatic control, puts condensation reflux unit, and (add-on is SiO to drip the good silane coupling agent KH570 of hydrolysis in advance
2Weight 5%), regulate pH value to 9.0,70 ℃ of constant temperature 4 hours filters and the oven dry nanometer SiO that obtains organising
2Particle;
The preparation of target compound:
With nylon 66 (101L of Du Pont) 100 mass fractions (hereinafter to be referred as " part "), ethene/acrylic ester/glycidyl methacrylate (AX8900, AtoFina) 20 parts, the nanometer that organises SiO
25 parts on particle, 0.2 part in 1010 oxidation inhibitor, 0.2 part in 168 oxidation inhibitor, ethylene bis stearamide (EBS ACRAWAX C, LONZA) 0.3 part, in super mixer, mixed 10～15 minutes, (screw speed is 120～480rpm to add twin screw extruder then, extrusion temperature is 260～280 ℃), fully plasticizing, fusion, extrude, tie rod, pelletizing obtain target compound.Target compound performance detected result sees Table 1.
Comparative Examples 1
With 100 parts of nylon 66 (101L of Du Pont), ethene/acrylic ester/glycidyl methacrylate (AX8900, AtoFina) 20 parts, 0.2 part in 1010 oxidation inhibitor, 0.2 part in 168 oxidation inhibitor, ethylene bis stearamide (EBS ACRAWAX C, LONZA) 0.3 part, adopt the working method identical, obtain elastomer toughened nylon 66 matrix materials with embodiment 1.Performance test results sees Table 1.
Embodiment 2
The nano-calcium carbonate processing that organises:
With particle diameter is the lime carbonate (CaCO of 80nm
3) particle and water presses mass ratio and add in homogenizer at 1: 12.5, is heated to 80 ℃ with water bath with thermostatic control, puts condensation reflux unit, (add-on of sodium stearate is CaCO to drip sodium stearate
3Weight 2%), stirred 2 hours at 80 ℃ of constant temperature, filter and the oven dry nanometer CaCO that obtains organising
3
The preparation of target compound:
With 100 parts of nylon 66 (101L of Du Pont), 8 parts of the ethylene/propene copolymers of maleic anhydride graft (EPR-g-MAH), the nanometer that organises CaCO
320 parts, 0.3 part in 1098 oxidation inhibitor, 0.2 part in 168 oxidation inhibitor, 0.4 part of polyethylene wax (HL02, BASF) adopts the working method identical with embodiment 1, obtains target compound.Target compound performance detected result sees Table 1.
Comparative Examples 2
With 100 parts of nylon 66 (101L of Du Pont), 8 parts of the ethylene/propene copolymers of maleic anhydride graft (EPR-g-MAH), 0.3 part in 1098 oxidation inhibitor, 0.2 part in 168 oxidation inhibitor, polyethylene wax (HL02, BASF) 0.4 part, adopt the working method identical with embodiment 1, obtain elastomer toughened nylon 66 matrix materials.Performance test results sees Table 1.
Table 1 embodiment 2 and Comparative Examples 1 The performance test results
| Testing standard | Embodiment 1 | Comparative Examples 1 | Embodiment 2 | Comparative Examples 2 | |
| Tensile strength (MPa) | ASTM D638 | 48 | 45 | 59 | 58 |
| Elongation at break (%) | ASTM D638 | 82 | 80 | 35 | 30 |
| Flexural strength (MPa) | ASTM D790 | 71 | 62 | 82 | 70 |
| Modulus in flexure (MPa) | ASTM D790 | 1920 | 1700 | 2400 | 2210 |
| Socle girder notch shock (J/m, 23 ℃) | ASTM D256 | 740 | 720 | 140 | 98 |
| Heat-drawn wire (℃, 18.2MPa) | ASTM D648 | 55 | 50 | 70 | 62 |
| Shrinking percentage (%) | ASTM D955 | 0.8～1.0 | 0.9～1.1 | 0.7～1.0 | 1.1～1.4 |
Each test data in the comparison sheet 1 as seen, tensile strength, flexural strength and modulus, elongation at break, notched Izod impact strength, heat-drawn wire and the dimensional stabilitys etc. that contain the nylon 66 composite material (embodiment 1 and embodiment 2) of nano particle all obtain raising in various degree, the excellent combination property of material.
Claims (9)
1, a kind of polyhexamethylene adipamide nano composite material, it melt extrudes and gets by the following main materials blend and in 260 ℃～280 ℃,
Polyhexamethylene adipamide 100 mass fractions
Elastomerics 5～20 mass fractions
Nano inorganic particle 5～30 mass fractions
Wherein: the relative viscosity of said polyhexamethylene adipamide is 2.7～2.9;
Said elastomerics is the ethylene/propene copolymer of maleic anhydride graft, the ethylene/octene of maleic anhydride graft, the styrene/butadiene/styrene copolymers of maleic anhydride graft or the ethylene/octene of glycidyl methacrylate graft; Said nano inorganic particle is nano-calcium carbonate or nano silicon.
2, nano composite material as claimed in claim 1 is characterized in that, wherein said elastomerics is the ethylene/octene of the ethylene/propene copolymer or the glycidyl methacrylate graft of maleic anhydride graft.
3, nano composite material as claimed in claim 1 is characterized in that, wherein the median size of said nano silicon is 5nm～30nm; The averageparticle of said nano-calcium carbonate is 15nm～90nm.
4, nano composite material as claimed in claim 1 is characterized in that, said nano composite material, and it melt extrudes and gets by the following main materials blend and in 260 ℃～280 ℃,
Polyhexamethylene adipamide 100 mass fractions
Elastomerics 5～20 mass fractions
Nano inorganic particle 5～30 mass fractions
Lubricant 0.3～0.5 mass fraction
Oxidation inhibitor 0.2～0.5 mass fraction
Wherein: said polyhexamethylene adipamide, elastomerics and nano inorganic particulate implication are with identical described in the claim 1;
Said lubricant is that calcium stearate, polyethylene wax are or/and ethylene bis stearamide;
Said oxidation inhibitor is four [β-(3 ', 5 '-di-t-butyl-4 '-hydroxy phenyl) propionic acid] pentaerythritol ester, N, and N '-two [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine is or/and three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester.
5, preparation is as the method for any described nano composite material in the claim 1～3, it is characterized in that, said preparation method's key step is: nano inorganic particle, elastomerics and polyhexamethylene adipamide are added in the mixing tank in the ratio described in the claim 1 mix, then the gained mixture is added screw extrusion press, melt extrude in 260 ℃～280 ℃ and promptly get target compound.
6, preparation method as claimed in claim 5, it is characterized in that, wherein to the processing that organises of said nano inorganic particle, that is: place the sand mill medium sand to wear into the nano inorganic particle slurry nano inorganic particle and dispersion agent, under 70 ℃～80 ℃ conditions, add properties-correcting agent, the add-on of properties-correcting agent is 2%～5% of a nano inorganic particle weight, 70 ℃～80 ℃ insulations 2 hours～4 hours, filter, dry, pulverize the nano inorganic particle that obtains organising;
Wherein said properties-correcting agent is silane coupling agent, titanate coupling agent or stearate.
7, preparation method as claimed in claim 6 is characterized in that, wherein said silane coupling agent is γ-aminopropyl triethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane or γ-methyl allyl acyloxypropyl trimethoxysilane.
8, preparation method as claimed in claim 6 is characterized in that, wherein said dispersion agent is ethanol, tetrahydrofuran (THF), hexanaphthene or water.
9, preparation method as claimed in claim 6 is characterized in that, wherein said properties-correcting agent is sec.-propyl three (dioctyl pyrophosphoryl base) titanic acid ester, two (dioctylphyrophosphoric acid ester) oxyacetate titanic acid ester quaternary amine, calcium stearate or sodium stearate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100257637A CN100465232C (en) | 2006-04-17 | 2006-04-17 | Nylon 66 nano composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100257637A CN100465232C (en) | 2006-04-17 | 2006-04-17 | Nylon 66 nano composite material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101058671A CN101058671A (en) | 2007-10-24 |
| CN100465232C true CN100465232C (en) | 2009-03-04 |
Family
ID=38864985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100257637A Expired - Fee Related CN100465232C (en) | 2006-04-17 | 2006-04-17 | Nylon 66 nano composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100465232C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376744B (en) * | 2008-09-04 | 2011-04-27 | 中国蓝星（集团）股份有限公司 | Nylon 6 complex and preparation thereof |
| CN101367992B (en) * | 2008-09-25 | 2011-01-05 | 上海交通大学 | Method of manufacturing polycarbonate/polyester alloy |
| CN101367991B (en) * | 2008-09-25 | 2011-01-05 | 上海交通大学 | Method of manufacturing polycarbonate/vinyl cyanide-butadiene-styrol copolymer alloy |
| CN101531835B (en) * | 2009-04-24 | 2012-05-23 | 吉林大学 | Wollastonite powder surface wet modification method assisted by microwave |
| CN102850784A (en) * | 2012-09-06 | 2013-01-02 | 江苏兆鋆新材料科技有限公司 | Nylon 6 modified material and preparation method thereof |
| CN104109377B (en) * | 2013-04-17 | 2018-01-12 | 上海杰事杰新材料(集团)股份有限公司 | A kind of nano silicon/NYLON610 T composites and preparation method thereof |
| CN103450666B (en) * | 2013-09-03 | 2016-08-17 | 金发科技股份有限公司 | A kind of polyamide compoiste material and its preparation method and application |
| CN103965622A (en) * | 2014-05-09 | 2014-08-06 | 安徽嘉木橡塑工业有限公司 | Release type high temperature resistant thin film |
| CN103992474B (en) * | 2014-06-11 | 2016-03-30 | 南方医科大学 | A kind of preparation method of ultrabranching polyamide modified organic silicone resin and the standby coating of this resin-made |
| CN104387760A (en) * | 2014-11-07 | 2015-03-04 | 佛山佛塑科技集团股份有限公司 | Anti-blocking nylon masterbatch and preparation method thereof |
| CN104592450B (en) * | 2015-01-04 | 2018-04-27 | 佳易容相容剂江苏有限公司 | The polyolefin elastomer of the compound grafting of nano-particle, maleic anhydride and its preparation |
| CN105778495B (en) * | 2016-04-06 | 2017-08-25 | 广东泰昊新材料科技有限公司 | For water pump vane can high-frequency welding enhancing nylon plastic(s) and preparation method thereof |
| CN108211799B (en) * | 2017-12-27 | 2021-03-05 | 浙江海洋大学 | Preparation method of high-strength PA66 ultrafiltration membrane |
| CN112920593A (en) * | 2019-12-05 | 2021-06-08 | 苏州荣昌复合材料有限公司 | High-strength low-shrinkage reinforced nylon and preparation method thereof |
| CN115651396B (en) * | 2022-10-13 | 2023-09-26 | 金发科技股份有限公司 | Polyamide resin composite material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445278A (en) * | 2003-04-10 | 2003-10-01 | 上海交通大学 | Super malleable nylon and its preparing method |
| EP1359196A1 (en) * | 2002-05-03 | 2003-11-05 | REHAU AG + Co | Polyamide composition reinforced with layered silicate |
| CN1530399A (en) * | 2003-03-17 | 2004-09-22 | ���з��ɹ�˾ | Polyamide and polyolefine blend containing nanometer filler and with polyamide as matrix |
| CN1571818A (en) * | 2001-10-19 | 2005-01-26 | 陶氏康宁公司 | Thermoplastic silicone elastomers from compatibilized polyamide resins |
-
2006
- 2006-04-17 CN CNB2006100257637A patent/CN100465232C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571818A (en) * | 2001-10-19 | 2005-01-26 | 陶氏康宁公司 | Thermoplastic silicone elastomers from compatibilized polyamide resins |
| EP1359196A1 (en) * | 2002-05-03 | 2003-11-05 | REHAU AG + Co | Polyamide composition reinforced with layered silicate |
| CN1530399A (en) * | 2003-03-17 | 2004-09-22 | ���з��ɹ�˾ | Polyamide and polyolefine blend containing nanometer filler and with polyamide as matrix |
| CN1445278A (en) * | 2003-04-10 | 2003-10-01 | 上海交通大学 | Super malleable nylon and its preparing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101058671A (en) | 2007-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100465232C (en) | Nylon 66 nano composite material and preparation method thereof | |
| CN107973976B (en) | High-impact-resistance high-gloss spray-free PP/PETG alloy material and preparation method thereof | |
| CN103421309B (en) | A kind of automobile cold-resistance super tough reinforced nylon 6 material and preparation method thereof | |
| CN101092496B (en) | High glazed, shock proof filled and modified polypropylene, preparation and application | |
| KR100563005B1 (en) | Asphalt composition containing asphalt modifier enhancing viscosity and drainage | |
| US20080290330A1 (en) | Composition of high impact glass firber reinforced flame-retardant engineering plastic and preparation method thereof | |
| CN108250586B (en) | PP/PMMA alloy material and preparation method and application thereof | |
| CN102766299A (en) | Anti-impacting anti-ageing modified polypropylene material and preparation method thereof | |
| CN109721941A (en) | Substrate and its preparation process used in a kind of high rigidity air-conditioning panel | |
| CN101709125B (en) | Polystyrene/polyolefin nano composite material based on interface compatibilization and preparation method thereof | |
| CN101759920A (en) | Polypropylene composite material with improved scraping and wiping resistance performance and preparation method thereof | |
| CN105440628B (en) | One kind enhancing fire retardation PC/PPO composite material and preparation method thereof | |
| CN109265967B (en) | Matte TPU material and preparation method thereof | |
| CN104592641A (en) | Low-glossiness scratch-resistant polypropylene composite material and preparation method thereof | |
| CN104403258A (en) | Antiflaming reinforcing ABS composite material and preparation method thereof | |
| CN105086452B (en) | A kind of halogen-free flameproof polyphenyl thioether composite material and preparation method thereof | |
| CN101787182B (en) | Method for preparing polybutylene terephthalate composite and mineral filler thereof | |
| CN103304911A (en) | Flame-retardant reinforced ABS (Acrylonitrile Butadiene Styrene) material and preparation method thereof | |
| CN108059770A (en) | Inorganic filler modifying agent and modified inorganic filler and its preparation method and application and PP composite material and preparation method thereof | |
| CN104086845A (en) | Color master batch special for PE-RT (Polyethylene of Raised Temperature Resistance) pipe and preparation method thereof | |
| CN101081929A (en) | Composite material easy for coating thermoplastic elastomer and preparation method thereof | |
| CN102002233A (en) | Mixture for preparing nylon nano composite material and preparation method of composite material | |
| CN108084623B (en) | Low-floating-fiber glass fiber reinforced AS composition and preparation method and application thereof | |
| CA2489511C (en) | Glass fiber filled thermoplastic compositions with good surface appearance | |
| CN106751353A (en) | A kind of low-density that can be used for thin-walled property moulding, high-performance polypropylene compound material and preparation method thereof |
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 | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200237 No. 130, Meilong Road, Shanghai, Xuhui District Patentee after: EAST CHINA University OF SCIENCE AND TECHNOLOGY Patentee after: Shanghai Juwei New Material Co.,Ltd. Address before: 200237 No. 130, Meilong Road, Shanghai, Xuhui District Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY Patentee before: POLYSTAR ENGINEERING PLASTICS (SHANGHAI) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210823 Address after: 200237 No. 130, Meilong Road, Shanghai, Xuhui District Patentee after: EAST CHINA University OF SCIENCE AND TECHNOLOGY Address before: 200237 No. 130, Meilong Road, Shanghai, Xuhui District Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY Patentee before: Shanghai Juwei New Material Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20210417 |