CN102942789B - High abrasion polyetherimide composite material and method for preparing same - Google Patents
High abrasion polyetherimide composite material and method for preparing same Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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Abstract
The invention discloses a high abrasion polyetherimide composite material. The high abrasion polyetherimide composite material consists of the following materials in percentage by weight: 80-99% of polyetherimide, 0.5-20% of polytetrafluoroethylene and 0.5-2.5% of lubricating agent. The invention further discloses a method for preparing the high abrasion polyetherimide composite material. According to the high abrasion polyetherimide composite material, polytetrafluoroethylene is adopted to improve the friction performance of polyetherimide, on one hand, the friction factor of the composite material can be greatly reduced, the abrasion loss is reduced, and moreover, the other physical and mechanical performances of the composite material cannot be influenced; and on the other hand, compared with the friction materials of graphite, molybdenum disulfide and the like, polytetrafluoroethylene is white, so that the high abrasion polyetherimide composite material can be conveniently dyed into other colors.
Description
Technical field
The present invention relates to engineering plastics technical field, be specifically related to a kind of high abrasion polyetherimide composite material and preparation method thereof.
Background technology
Polyetherimide (being called for short PEI) is a kind of thermoplastic special engineering plastics, its Heat stability is good, and second-order transition temperature is 215 DEG C, and continuous use temperature can reach 170 DEG C; And (oxygen index is greater than 47 to have excellent flame retardant properties, the amount of being fuming is low), toughness, radiation resistance and chemical proofing are strong, also have good dielectric properties in addition, have stable specific inductivity and dielectric loss value and high dielectric strength in the frequency and temperature range of broadness.PEI goods are widely used in the fields such as Aeronautics and Astronautics, electrical equipment, machinery, chemical industry, microelectronics.Due to the performance that it is special, be often selected to structural timber, frictional wear material and temperature-resistant material.The wearing and tearing of this intensity to material, rub resistance and high temperature dimensional stability propose high request.But pure PEI frictional coefficient and wear rate bigger than normal, should not lubricant be used as.
The people such as the Wang Liqin of Harbin Institute of Technology have delivered " graphite-filled polyetherimide tribological property is analyzed " (" lubrication and sealing " the 32nd volume the 10th phase), the document have studied the friction and wear behavior of the graphite-filled PEI based composites of different content, the wear-resisting polyetherimide composite material color adopting the method to prepare is black, be unfavorable for the selection needs of goods, limit the range of application of product, and the physical and mechanical properties of the matrix material adopting the method to prepare also significantly reduces than PEI.In addition, Research Literature and the patent report of other wear-resisting polyetherimide is had no both at home and abroad.
Summary of the invention
First goal of the invention of the present invention is the deficiency and the defect that overcome current techniques existence, and solution polyetherimide frictional coefficient is large, high shortcoming of wearing and tearing, and provides the high abrasion polyetherimide composite material that a kind of frictional coefficient is low, wear and tear little
Second goal of the invention of the present invention is to provide the preparation method that a kind of frictional coefficient is low, wear and tear high abrasion polyetherimide composite material little.
For realizing the present invention first goal of the invention, the present invention adopts following technical scheme: a kind of high abrasion polyetherimide composite material, is made up of by mass percentage following material:
Polyetherimide: 80 ~ 99%;
Tetrafluoroethylene: 0.5 ~ 20%;
Lubricant 0.5 ~ 2.5%.
The present invention is preferred, and described polyetherimide is obtained in 200-300 DEG C of polycondensation in dimethylacetamide solvent by bisphenol A-type dianhydride, mphenylenediamine and telogen, and its density is 1.27 ± 0.02g/cm
3, second-order transition temperature is 210-220 DEG C; This polyetherimide preferred can provide the resistance toheat and physical and mechanical properties that matrix material is higher.
The present invention is preferred, and described telogen is phthalic anhydride or aniline, and described conditioning agent effectively can control the molecular weight and molecualr weight distribution of polyetherimide.
The present invention is preferred, and described tetrafluoroethylene is Powdered, and relative molecular mass is 500-800 ten thousand, degree of crystallinity 92-95%, melt temperature 320-340 DEG C, and preferred tetrafluoroethylene can provide the wear resisting property and processing characteristics that polyetherimide composite material is higher.
The present invention is preferred, and described lubricant is one or both in pentaerythritol stearate, silicone powder.
The present invention is preferred, and described lubricant is the silicone powder that decomposition temperature is greater than 375 DEG C.
For realizing the present invention second goal of the invention, the following technical scheme of the bright employing of way: a kind of preparation method of high abrasion polyetherimide composite material, comprises the following steps:
(1) polyetherimide is positioned over dry 4-6 hour in the vacuum drying oven of 150-180 DEG C, then precise polyetherimide, tetrafluoroethylene, lubricant according to a certain ratio, joins in homogenizer and stir 5 ~ 20 minutes;
(2) the above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each section temperature of setting forcing machine from hopper to die head is respectively: 260 ~ 290 DEG C, 310 ~ 320 DEG C, 330 ~ 350 DEG C, 330 ~ 350 DEG C, 330 ~ 350 DEG C, 340 ~ 360 DEG C, the screw speed of main frame is 250 ~ 330r/min, and the rotating speed of hopper feed screw rod is 24 ~ 35r/min, and then material blended melting is extruded a bar;
(3) carried above-mentioned by steel transport tape through extruding dies grain bar out, be provided with 3-6 fan and cool grain bar above transport tape, the grain bar after air-dry enters dicing machine and carries out pelletizing.
Beneficial effect of the present invention:
(1) tetrafluoroethylene is a kind of plastics that in plastics, frictional coefficient is minimum, and there is high temperature resistant, corrosion-resistant and excellent electric property, tetrafluoroethylene is adopted to improve the frictional behaviour of polyetherimide, greatly can reduce the frictional coefficient of matrix material on the one hand, the amount of reducing wear, and other physical and mechanical properties that can not affect matrix material; On the other hand, compare the friction materials such as graphite, molybdenumdisulphide, tetrafluoroethylene, originally as white, can dye other color easily;
(2) polyetherimide composite material of the present invention adopts conveying belt to carry when extruding pelletization, with traditional first by grain bar through tank water-cooled, and then air-dry tractive manner is compared, the method effectively can reduce the water ratio of matrix material, thus reduce the oven dry cost of material before injection molding, improve over-all properties and the job efficiency of material;
(3) composite material preparation process of the present invention is simple, cost is lower, can process on the twin screw extruder of routine, prepared high abrasion polyetherimide composite material has the characteristic of high lubrication, low wearing and tearing, comprehensive physical excellent in mechanical performance, can be applied to the fields such as Aeronautics and Astronautics, machinery, chemical industry as a kind of solid self-lubricant material.
Embodiment
A kind of high abrasion polyetherimide composite material disclosed by the invention and preparation method thereof, cubage by mass percentage comprises: polyetherimide 80 ~ 99%, tetrafluoroethylene 0.5 ~ 20%, lubricant 0.5 ~ 2.5%.Wherein, tetrafluoroethylene effectively can reduce the frictional coefficient of polyetherimide as lubricant, improves its polishing machine, on the other hand, tetrafluoroethylene, as a kind of white powder, can not cause too large impact to the color of matrix material, can dye other color easily; Lubricant add by effectively improve material in the course of processing with the friction of machinery equipment, reduce energy consumption, and improve the mobility of matrix material and release property.
In the examples below, polyetherimide used is the Ultem 1000-1000 of radical innovations company of Saudi Arabia, and tetrafluoroethylene used is the M-33 of Daikin company, and lubricant is the silicone powder ST-LS100 that star shellfish reaches (Beijing) chemical materials company limited.
Embodiment 1
Proportioning is carried out: polyetherimide 98.5%, tetrafluoroethylene 1%, lubricant 0.5% by following mass percent composition.
First polyetherimide to be positioned in the vacuum drying oven of 150 DEG C dry 4 hours, then by the polyetherimide of precise, tetrafluoroethylene, lubricant, to join in homogenizer and stir 5 minutes.
The above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each section temperature of setting forcing machine from hopper to die head is respectively in (six district) totally: 260 DEG C, 310 DEG C, 330 DEG C, 350 DEG C, 350 DEG C, 340 DEG C, the screw speed of main frame is 280r/min, and the rotating speed of hopper feed screw rod is 26r/min, and then is extruded by material blended melting;
Above-mentionedly be transported to dicing machine through extruding dies grain bar out by steel transport tape and carry out pelletizing, the high abrasion polyetherimide composite material that length is 3 ~ 5mm can be obtained.
Embodiment 2
Proportioning is carried out: polyetherimide 96.5%, tetrafluoroethylene 3%, lubricant 0.5% by following mass percent composition.
First polyetherimide to be positioned in the vacuum drying oven of 170 DEG C dry 4 hours, then by the polyetherimide of precise, tetrafluoroethylene, lubricant, to join in homogenizer and stir 8 minutes;
The above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each section temperature of setting forcing machine from hopper to die head is respectively in (six district) totally: 270 DEG C, 310 DEG C, 330 DEG C, 340 DEG C, 340 DEG C, 360 DEG C, the screw speed of main frame is 280r/min, and the rotating speed of hopper feed screw rod is 29r/min, and then is extruded by material blended melting;
Above-mentionedly be transported to dicing machine through extruding dies grain bar out by steel transport tape and carry out pelletizing, the high abrasion polyetherimide composite material that length is 3 ~ 5mm can be obtained.
Embodiment 3
Proportioning is carried out: polyetherimide 94.2%, tetrafluoroethylene 5%, lubricant 0.8% by following mass percent composition.
First polyetherimide to be positioned in the vacuum drying oven of 180 DEG C dry 4 hours, then by the polyetherimide of precise, tetrafluoroethylene, lubricant, to join in homogenizer and stir 5 minutes;
The above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each section temperature of setting forcing machine from hopper to die head is respectively in (six district) totally: 290 DEG C, 320 DEG C, 350 DEG C, 350 DEG C, 350 DEG C, 360 DEG C, the screw speed of main frame is 330r/min, and the rotating speed of hopper feed screw rod is 35r/min, and then is extruded by material blended melting;
Above-mentionedly be transported to dicing machine through extruding dies grain bar out by steel transport tape and carry out pelletizing, the high abrasion polyetherimide composite material that length is 3 ~ 5mm can be obtained.
Embodiment 4
Proportioning is carried out: polyetherimide 98.2%, tetrafluoroethylene 1%, lubricant 0.8% by following mass percent composition.
First polyetherimide to be positioned in the vacuum drying oven of 160 DEG C dry 6 hours, then by the polyetherimide of precise, tetrafluoroethylene, lubricant, to join in homogenizer and stir 10 minutes;
The above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each section temperature of setting forcing machine from hopper to die head is respectively in (six district) totally: 280 DEG C, 320 DEG C, 340 DEG C, 350 DEG C, 350 DEG C, 360 DEG C, the screw speed of main frame is 310r/min, and the rotating speed of hopper feed screw rod is 30r/min, and then is extruded by material blended melting;
Above-mentionedly be transported to dicing machine through extruding dies grain bar out by steel transport tape and carry out pelletizing, the high abrasion polyetherimide composite material that length is 3 ~ 5mm can be obtained.
Embodiment 5
Proportioning is carried out: polyetherimide 79%, tetrafluoroethylene 20%, lubricant 1% by following mass percent composition.
First polyetherimide to be positioned in the vacuum drying oven of 180 DEG C dry 4 hours, then by the polyetherimide of precise, tetrafluoroethylene, lubricant, to join in homogenizer and stir 15 minutes;
The above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each section temperature of setting forcing machine from hopper to die head is respectively in (six district) totally: 260 DEG C, 310 DEG C, 330 DEG C, 350 DEG C, 350 DEG C, 360 DEG C, the screw speed of main frame is 300r/min, and the rotating speed of hopper feed screw rod is 29r/min, and then is extruded by material blended melting;
Above-mentionedly be transported to dicing machine through extruding dies grain bar out by steel transport tape and carry out pelletizing, the high abrasion polyetherimide composite material that length is 3 ~ 5mm can be obtained.
Comparative example 1
Proportioning is carried out: polyetherimide 99.5%, lubricant 0.5% by following mass percent composition.
First polyetherimide to be positioned in the vacuum drying oven of 150 DEG C dry 4 hours, then by the polyetherimide of precise, lubricant, to join in homogenizer and stir 5 minutes.
The above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each section temperature of setting forcing machine from hopper to die head is respectively in (six district) totally: 260 DEG C, 310 DEG C, 330 DEG C, 350 DEG C, 350 DEG C, 340 DEG C, the screw speed of main frame is 280r/min, and the rotating speed of hopper feed screw rod is 26r/min, and then is extruded by material blended melting;
Above-mentionedly be transported to dicing machine through extruding dies grain bar out by steel transport tape and carry out pelletizing, the polyetherimide composite material that length is 3 ~ 5mm can be obtained.
In above-described embodiment the physical and mechanical property of resulting materials and wear resisting property as shown in the table:
Claims (2)
1. a high abrasion polyetherimide composite material, is made up of by mass percentage following material:
Polyetherimide: 98.2%;
Tetrafluoroethylene: 1%;
Lubricant 0.8%;
Described polyetherimide is obtained in 200-300 DEG C of polycondensation in dimethylacetamide solvent by bisphenol A-type dianhydride, mphenylenediamine and telogen, and its density is 1.27 ± 0.02g/cm3, and second-order transition temperature is 210-220 DEG C; Described telogen is phthalic anhydride or aniline;
Described tetrafluoroethylene is Powdered, and relative molecular mass is 500-800 ten thousand, degree of crystallinity 92-95%, melt temperature 320-340 DEG C;
Described polyetherimide is the Ultem 1000-1000 of radical innovations company of Saudi Arabia, and described tetrafluoroethylene is the M-33 of Daikin company, and lubricant is the silicone powder ST-LS100 that star shellfish reaches (Beijing) chemical materials company limited.
2. the preparation method of high abrasion polyetherimide composite material as claimed in claim 1, is characterized in that comprising the following steps:
(1) polyetherimide is positioned over dry 4-6 hour in the vacuum drying oven of 150-180 DEG C, then precise polyetherimide, tetrafluoroethylene, lubricant according to a certain ratio, joins in homogenizer and stir 5 ~ 20 minutes;
(2) the above-mentioned material stirred is joined in the hopper of parallel double-screw extruder, the each heating zone temperature of setting forcing machine from hopper to die head is respectively: 260 ~ 290 DEG C, 310 ~ 320 DEG C, 330 ~ 350 DEG C, 330 ~ 350 DEG C, 330 ~ 350 DEG C, 340 ~ 360 DEG C, the screw speed of main frame is 250 ~ 330r/min, and the rotating speed of hopper feed screw rod is 24 ~ 35r/min, and then material blended melting is extruded a bar;
(3) carried above-mentioned by steel transport tape through extruding dies grain bar out, be provided with 3-6 fan and cool grain bar above transport tape, the grain bar after air-dry enters dicing machine and carries out pelletizing.
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| CN104530694A (en) * | 2014-12-26 | 2015-04-22 | 广州市聚赛龙工程塑料有限公司 | Regenerated PA6 (polyamide 6)-base flame-retardant electric-insulating heat-conducting composite material, and preparation method and application thereof |
| CN105062069B (en) * | 2015-07-17 | 2017-09-01 | 中国科学院宁波材料技术与工程研究所 | Wear-resisting modified polyimide composite and preparation method thereof |
| CN110767404B (en) * | 2018-07-25 | 2021-02-26 | 南京滕达机械设备有限公司 | Ferrite magnetic material production line |
| CN111234527A (en) * | 2018-11-28 | 2020-06-05 | 合肥杰事杰新材料股份有限公司 | Wear-resistant polyetherimide composite material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177256B1 (en) * | 1999-04-28 | 2005-06-22 | General Electric Company | Compositions and methods for reduced food adhesion |
| CN102606627A (en) * | 2012-02-28 | 2012-07-25 | 上海斐赛轴承科技有限公司 | Rolling bearing and manufacturing method for solid lubricated rolling bearing |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177256B1 (en) * | 1999-04-28 | 2005-06-22 | General Electric Company | Compositions and methods for reduced food adhesion |
| CN102606627A (en) * | 2012-02-28 | 2012-07-25 | 上海斐赛轴承科技有限公司 | Rolling bearing and manufacturing method for solid lubricated rolling bearing |
Non-Patent Citations (1)
| Title |
|---|
| 汉斯•茨魏费尔.塑料添加剂手册.《塑料添加剂手册》.化学工业出版社,2005,(第5版), * |
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Effective date of registration: 20151118 Address after: Conghua Ao town Guangzhou city Guangdong province 510940 Longtan Jubao industrial district (Village) Patentee after: Guangzhou Super-Dragon Engineering plastic Co., Ltd. Address before: Conghua Ao town Guangzhou city Guangdong province 510945 Longtan Jubao Industrial Zone Patentee before: Super-Dragon New Material Technology Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Conghua Ao town Guangzhou city Guangdong province 510940 Longtan Jubao industrial district (Village) Patentee after: GUANGZHOU SUPER-DRAGON ENGINEERING PLASTICS CO., LTD. Address before: Conghua Ao town Guangzhou city Guangdong province 510940 Longtan Jubao industrial district (Village) Patentee before: Guangzhou Super-Dragon Engineering plastic Co., Ltd. |