CN102153277B - Drain plate for preparing electronic grade spun yarns and electronic grade spun yarn preparation method - Google Patents
Drain plate for preparing electronic grade spun yarns and electronic grade spun yarn preparation method Download PDFInfo
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- CN102153277B CN102153277B CN201010605683A CN201010605683A CN102153277B CN 102153277 B CN102153277 B CN 102153277B CN 201010605683 A CN201010605683 A CN 201010605683A CN 201010605683 A CN201010605683 A CN 201010605683A CN 102153277 B CN102153277 B CN 102153277B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a drain plate for preparing electronic grade spun yarns. Novel drain nozzle distribution is adopted on bottom plates, so that the production efficiency is greatly improved at the same time of ensuring that the quality of products does not decline. The bottom plates of the drain plate are divided into five areas in totally same size, shape and arrangement mode, the drain nozzles of each area are arranged in a mode of fillet parallelogram array consisting of 12 columns and 17 rows, and the fillet parallelogram array is formed by respectively removing one drain nozzle on four corners from the parallelogram array consisting of the drain nozzles and provided with 200 drain nozzles. The drain nozzle fillet matrix of the novel drain plate is more symmetrical compared with the drain nozzle fillet matrix of 13 columns and 16 rows of an 800-pore drain plate, so that the glass silk distribution is more uniform in the subsequent process and the product yield is increased at the same time of ensuring the product quality. Meanwhile, the subsequent process of drain plate production is correspondingly improved.
Description
Technical field
The present invention relates to glass fiber wire-drawing with bushing and use the preparation method of this bushing, particularly prepare the bushing of electronic-grade spun yarn and use the electronic-grade spun yarn preparation method of this bushing.
Background technology
The electronic-grade spun yarn is the continuous glass fibre of being processed by " E " glass.Be mainly used in and weave electronics cloth, also can be used for producing industry type purposes such as voluminous yarn and twist yarn.Its characteristics comprise: added the starch-type treating compound; The precursor linear density is stable; The fiber coherent is good, soft appropriateness, and wear resistance is good, and wool yarn is little; Monofilament is powerful high.
The common method of manufacture of spun glass is to discharge the multi beam melten glass from the heating bushing, coats treating compound with sending into baster behind this glass strands drawing fiber to fiber, then on buncher with the integrated precursor of fiber and at head coiled glass fiber packages.
Bushing at glass industry production electronics spun yarn adopts the high-temperature refractory integral cast to install more at present, is mostly that 800 hole bushings drew in four minutes.This type of bushing is the grooved bushing of platinum rhodium, and general platinum accounts for 95%, and rhodium accounts for 5%, to improve its high temperature creep-resisting performance.Arranging of 800 hole bushings is divided into 4 groups usually; Every group is 13 row, 16 row matrixs and removes four angles totally 8 fillet matrixes of leting slip a remark and forming; 4 in the once full tube of spinning cake number, the drawing wire machine speed control is at 3000～4000rpm/min, and single month finished product production capacity of a bushing is controlled at about 10 tons.
Because 800 hole bushing production efficiencys are low, the economic benefit that the electronics spun yarn should possess does not display, and its production efficiency remains further to be improved.Practice is found; The simple quantity that increases the bushing hole; Can in subsequent technique, cause such as the problem of reduction spun yarn quality qualities such as wire-drawing operation is difficult, single fiber diameter is inhomogeneous, devitrification of glass, wool yarn, broken yarn, not only can't enhance productivity, reduce quality product on the contrary.
Summary of the invention
The present invention is directed to the lower present situation of traditional 800 hole bushing electronic-grade spun yarn production efficiencys; Develop new bushing and be used for electronic-grade spun yarn production technique; And the arrangement mode of leting slip a remark on bushing designed, when guaranteeing that quality product does not descend, production efficiency increases considerably.The present invention has also carried out corresponding improvement to the subsequent technique of bushing production simultaneously.
A kind of bushing that is used to prepare the electronic-grade spun yarn; Be bathtub construction; Said flute profile is made up of two blocks of horizontal side plates, two vertical side plates, base plates; Said base plate is provided with that some sizes are identical, equally distributed lets slip a remark; Saidly let slip a remark that to pass said base plate protruding, it is characterized in that, on said base plate, be divided into size, shape, the identical N of an arrangement mode zone; Each zone fillet rhomboid array of 12 row, 17 row formed of leting slip a remark of all serving as reasons, said fillet rhomboid array are meant that the rhomboid array of said 12 row, 17 row formed of leting slip a remark removes each 1 formed 200 fillet rhomboid array of leting slip a remark that have of leting slip a remark on four angles respectively; There is a hole at said each center of leting slip a remark.
Said fillet rhomboid can be round rectangle.Said length of leting slip a remark is 3～7mm, and said base plate thickness is 1～2mm, and said leting slip a remark is the equal diameter circular tube structure of internal diameter 1～1.5mm.A said N zone is 5 zones, and said bushing has 1000 and lets slip a remark, and is called 1000 hole bushings.
A kind of preparation method of electronic-grade spun yarn comprises the steps:
1) high temp glass liquid is through above-mentioned bushing;
2) will force cooling at water cooler through the high temp glass liquid of above-mentioned bushing, and make the temperature of glass metal reach second-order transition temperature, viscosity reaches vitrifying viscosity;
3) glass metal reaches vitrifying viscosity through water cooler becomes glass yarn, and said glass yarn carries out treating compound through the baster group and applies, and makes it apply treated starch type treating compound;
4) above-mentioned glass yarn is passed through buncher; Said buncher is divided into buncher and following buncher, and said glass yarn is carried out boundling;
5) above-mentioned glass yarn is carried out the spinning cake moulding process, process the spinning cake yarn;
6) above-mentioned spinning cake yarn is carried out twisting technique.
Said water cooler is made up of 13 cooling fins, and the glass yarn through said bushing is passed through between said cooling fin, and the length of the cooling fin of cooling fin quantity and bushing and said bushing width are complementary, and cooling body length and said bushing length are complementary.
Said baster group is that left side, centre, three basters in right side are carried out treating compound to said glass yarn and applied; Said left side baster applies two synnema bundles; I.e. two spinning cake yarns, said in the middle of baster apply a branch of tow, i.e. spinning cake yarn; Said right side baster applies two synnema bundles, i.e. two spinning cake yarns; Said baster all uses the rubber ring transmission to carry out treating compound and applies.
The said buncher of going up comprises three the gathering roll devices in left side, centre, right side of working simultaneously, and said left side gathering roll device is boundling two synnema bundles simultaneously, a branch of tow of middle gathering roll device boundling, and right side gathering roll device is boundling two synnema bundles simultaneously.
Said buncher down is 5 independent gathering roll devices, can be respectively to said 5 synnema Shu Jinhang boundlings during production.
Technique effect of the present invention:
Through change, reduced because the quantity of leting slip a remark rolls up the problem such as reduction spun yarn quality qualities such as wire-drawing operation is difficult, single fiber diameter is inhomogeneous, devitrification of glass, wool yarn, broken yarns that in subsequent technique, causes to the arrangement mode of leting slip a remark on the bushing.Bushing arrangement mode of the present invention has adopted 200 the fillet rhomboid array arrangement modes of leting slip a remark that have of 12 row 17 row formed by leting slip a remark; Remove 8 200 fillet matrixes of leting slip a remark that are all of leting slip a remark at four angles with 13 row, the 16 capable matrixes of leting slip a remark of 800 hole bushings and compare symmetry more; So that in subsequent process, make the glass yarn more even distribution; Avoided effectively that single fiber diameter in the follow-up boundling process is inhomogeneous, the problem of devitrification of glass, wool yarn, broken yarn; When guaranteeing quality product, increased product yield.
Further scheme of the present invention is defined as the fillet matrix with fillet rhomboid array, makes its symmetry more that distributes can better guarantee product quality.
On the above-mentioned arrangement mode basis of leting slip a remark, further scheme of the present invention expands to 1000 holes, 5 zones with bushing by traditional 800 holes, 4 zones, can improve productive rate greatly.The research proof, with respect to 800 hole bushings, 1000 hole bushing technology of the present invention are 1.25 times of 800 hole bushings guaranteeing significantly to have improved production efficiency on the basis that quality product does not descend.
The further scheme of the present invention has been carried out adaptation to water cooler.The quantity of cooling fin is that the columns of bushing adds one, so that pass through between said cooling fin through the glass yarn of said bushing, makes glass yarn cool off synchronously, avoids the deterioration in quality that causes because of non-uniform temperature; Cooling fin and cooling body length will cooperate the width and the length of bushing respectively, both can guarantee different zones glass yarn refrigerative homogeneity, can prevent undercooling again, avoid the detrimentally affect to subsequent technique.
The further scheme of the present invention has been carried out adaptation to baster; Using three basters in left, center, right that glass yarn is carried out treating compound applies; Can make glass yarn have identical treating compound coating concentration corresponding to 5 different bushings zones; With receive identical coating power, avoid applying wool yarn, the broken yarn phenomenon of the different follow-up drawing process that cause of quality discrepancy that the concentration difference causes with coating power.
The further scheme of the present invention has been carried out adaptation to last buncher; Last buncher adopts three the gathering roll devices in left, center, right simultaneously; Respectively to the two synnema Shu Jinhang boundlings on the two synnema bundles in left side, a branch of tow of intermediary, right side; Make the parallel descending glass yarn of five bundles stressed even when boundling, avoided the tow of different zones to descend because of the different qualities that cause of tow plying that tension degree difference causes with pulling force.
The further scheme of the present invention has been carried out adaptation to following buncher; Following buncher with 5 independent gathering roll devices to above-mentioned 5 synnema Shu Jinhang boundlings; Also be in order to make the tow stressing conditions identical, to have identical quality to guarantee each 5 spinning cake yarns producing.
The preparation technology of electronic-grade spun yarn is one needs the collaborative technological process of multistep, and any step that changes wherein all can exert an influence to whole technological process, and then influences the quality of product.Therefore how to guarantee that other step does not reduce product quality and standard a part of step wherein being carried out the improved while, be in the spun glass production the major issue that will consider.The present invention is through improving the arrangement mode of leting slip a remark of bushing, and when having solved the problem that the electronic-grade spun yarn yields poorly, process steps such as aid in improved water cooler, baster, buncher have guaranteed the quality of product.
Description of drawings
Fig. 1 a is the layout n. of bushing of the present invention.
Fig. 1 b is the M zone among Fig. 1 a.
Fig. 1 c is the structure of leting slip a remark of bushing of the present invention.
Fig. 2 is a drawing process schema of the present invention.
Fig. 3 is the vertical view of bushing water cooler of the present invention.
Reference numeral is following:
The 2a-bushing is discharged glass yarn, 2b-cooling body and spray cooling, 2c-oiling, the last boundling of 2d-, boundling under the 2e-, 2f-tow winding displacement, moulding of 2g-spinning cake and technology such as twist thread; 3a-cooling fin group, the 3b-cooling body, the 3c-cooling enters the mouth with soft water; Soft water outlet is used in the 3d cooling.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further.
Fig. 1 a is the layout n. of bushing of the present invention.Bushing is the individual layer bushing of thickness 1.7mm, can stop because the distortion that bushing upper and lower surfaces temperature difference causes.Visible by figure; Bushing is equally divided into size, shape, identical 5 districts of distribution; Leting slip a remark of each district all is arranged in the fillet matrix of 12 row, 17 row; Be that each district is that the let slip a remark matrixes formed of 12 row 17 row remove 200 the fillet matrixes of leting slip a remark that have that each 1 at four angles let slip a remark, therefore 5 districts have 1000 and let slip a remark.It may occur to persons skilled in the art that said the arranging on said bushing of leting slip a remark can be the arrangement mode of the fillet rhomboid array of certain form; Such as interior angle is respectively the fillet rhomboid of 45 ° and 135 °, so the arrangement mode of fillet rhomboid also should be within protection scope of the present invention.
Fig. 1 b is the M zone among Fig. 1 a, has shown the arrangement mode of leting slip a remark.Visible by figure, identical the leting slip a remark of size becomes matrix in local arrangements.Line space is 3.8mm in this example, and column pitch is 5.6mm.The size of spacing that Certainly and column pitch can be rearranged according to the needs of arranging of bushing.
Fig. 1 c is each structure of leting slip a remark.Visible by figure, leting slip a remark is that traditional equal diameter circular tube structure, its processing mode are to adopt tube drawing bench to draw internal diameter less than the tubule that requires, be divided into the length of requirement after, be welded in respectively on the base plate that has had openning hole, proofread and correct the back with the unit-type drill head reaming to the needs size.The design of internal diameter has directly determined the Fibre diameter of finished product electronic-grade spun yarn owing to let slip a remark, and therefore wants strict with the Fibre diameter decision of being produced.With E225 product single fiber is example, and its diameter is 7.5 microns, and the internal diameter of preferably leting slip a remark thus is 1.4mm.Let slip a remark among the figure and pass the long 5mm of being of the protruding part of said base plate.
Through change, reduced because the quantity of leting slip a remark rolls up the problem such as reduction spun yarn quality qualities such as wire-drawing operation is difficult, single fiber diameter is inhomogeneous, devitrification of glass, wool yarn, broken yarns that in subsequent technique, causes to the arrangement mode of leting slip a remark on the bushing.The arrange matrixes of 12 row, 17 row that adopting lets slip a remark forms of bushing of the present invention remove 200 the fillet matrix arrangement modes of leting slip a remark that have that each 1 at four angles let slip a remark; Than the matrixes of leting slip a remark of 13 row 16 row of 800 hole bushings remove four angles totally 8 let slip a remark be all 200 fillet matrixes of leting slip a remark symmetry more; Flow through in the wire drawing refrigerative process of leting slip a remark at glass metal; Make the glass yarn more even distribution, effectively avoided tow plying, tow wear problems.Can certainly be six districts, let slip a remark corresponding to 1200.
Fig. 2 is that bushing of the present invention is produced electronic-grade spinning process schema.Visible by figure, the preparation of electronic-grade spun yarn will be passed through following steps: bushing is discharged glass yarn 2a, cooling body and spray cooling 2b, oiling 2c, last boundling 2d, following boundling 2e, tow winding displacement 2f, spinning cake moulding 2g and technology such as twist thread.Owing to adopted 1000 new hole bushings also to cause the complementary and adaptive change of its subsequent technique.
Shown in Figure 3 is the bushing water cooler.After the high-temperature fusion glass precursor solution comes out from the bushing hole, in order to make root curing molding faster, need to adopt soft water to accomplish fast, so that obtain needed curing molding fiber and stablize job state with the mode of heat exchange.Water cooler comprises cooling fin group 3a, cooling body 3b, and cooling is used soft water outlet 3d with soft water inlet 3c with cooling.In the water cooler, the quantity of cooling fin is that the columns of bushing adds one, so that pass through between said cooling fin through the glass yarn of said bushing, makes glass yarn cool off synchronously, avoids the deterioration in quality that causes because of non-uniform temperature.Bushing is 12 row among the present invention, therefore needs 13 cooling fins to cool off.Cooling fin and cooling body length will cooperate the width and the length of bushing respectively, both can guarantee different zones glass yarn refrigerative homogeneity, can prevent undercooling again, avoid the detrimentally affect to subsequent technique.
Glass yarn has passed through after the cooling, pass through the coating of baster.Electronic-grade spun yarn product has the powerful height of single fiber, wear resistance is good, soft yarns is moderate, the fiber coherent reaches excellent specific properties such as good insulation preformance well; Need to apply professional well behaved treating compound solution; This just needs baster is that it provides coating device, so that reach the due performance of product.When the silk root after coming out from bushing under drawing wire machine tractive force and the effect of liquid level static pressure, carry out treating compound through three basters in left, center, right and apply.The left side baster applies two synnema bundles, i.e. two spinning cake yarns; Middle baster applies a branch of tow, i.e. a spinning cake yarn; The right side baster applies two synnema bundles, i.e. two spinning cake yarns.
Coated glass yarn tow enters into the boundling step.Boundling is for diffusing and many single strand effectively is concentrated into a branch of process, so that reach desired yarn number number, thus the high performance characteristics of fortifying fibre tow.Buncher is divided into buncher and following buncher.Adopt the gathering roll device to replace traditional graphite rod form in the present embodiment.Last buncher adopts three gathering roll devices simultaneously, is respectively left side gathering roll device boundling two synnema bundles simultaneously, a branch of tow of boundling of middle gathering roll device, and right side gathering roll device is boundling two synnema bundles simultaneously.
Get into buncher down then.Following buncher is respectively 5 independent gathering roll devices, can be respectively to 5 synnema Shu Jinhang boundlings, to guarantee that producing 5 spinning cake yarns can normally move at every turn during production.
Get into the spinning cake moulding process after the tow boundling.This is last one production system of drawing process, is to twist thread for next process to carry out the stage that work in-process generate.In drawing wire machine and strand oscillator winding process, head rotates along CW, and strand oscillator is arranged than keeping carrying out the tow regularity under the constant condition in both speed then along rotation counterclockwise, produces the trapezoid spinning cake at last.This step and traditional technology are basic identical.
Claims (10)
1. bushing that is used to prepare the electronic-grade spun yarn; Be bathtub construction; Said flute profile is made up of two blocks of horizontal side plates, two vertical side plates, base plates; Said base plate is provided with that some sizes are identical, equally distributed lets slip a remark; Saidly let slip a remark that to pass said base plate protruding, it is characterized in that, on said base plate, be divided into size, shape, the identical N of an arrangement mode zone; Each zone fillet rhomboid array of 12 row, 17 row formed of leting slip a remark of all serving as reasons, said fillet rhomboid array are meant that the rhomboid array of said 12 row, 17 row formed of leting slip a remark removes each 1 formed 200 fillet rhomboid array of leting slip a remark that have of leting slip a remark on four angles respectively; There is a hole at each center of leting slip a remark.
2. the bushing that is used to prepare the electronic-grade spun yarn according to claim 1 is characterized in that, said fillet rhomboid array is the fillet matrix.
3. the bushing that is used to prepare the electronic-grade spun yarn according to claim 1 and 2 is characterized in that, said length of leting slip a remark is 3～7mm, and said base plate thickness is 1～2mm, and said leting slip a remark is the equal diameter circular tube structure of internal diameter 1～1.5mm.
4. the bushing that is used to prepare the electronic-grade spun yarn according to claim 1 and 2 is characterized in that, a said N zone is 5 zones, and said bushing has 1000 and lets slip a remark, and is called 1000 hole bushings.
5. the preparation method of an electronic-grade spun yarn comprises the steps:
1) high temp glass liquid is through one of claim 1～3 described bushing;
2) will force cooling at water cooler through the high temp glass liquid of above-mentioned bushing, and make the temperature of glass metal reach second-order transition temperature, viscosity reaches vitrifying viscosity;
3) glass metal reaches vitrifying viscosity through water cooler becomes glass yarn, and said glass yarn carries out treating compound through the baster group and applies, and makes it apply treated starch type treating compound;
4) above-mentioned glass yarn is passed through buncher; Said buncher is divided into buncher and following buncher, and said glass yarn is carried out boundling;
5) above-mentioned glass yarn is carried out the spinning cake moulding process, process the spinning cake yarn;
6) above-mentioned spinning cake yarn is carried out twisting technique.
6. the preparation method of an electronic-grade spun yarn comprises the steps:
1) high temp glass liquid is through the described bushing of claim 4;
2) will force cooling at water cooler through the high temp glass liquid of above-mentioned bushing, and make the temperature of glass metal reach second-order transition temperature, viscosity reaches vitrifying viscosity;
3) glass metal reaches vitrifying viscosity through water cooler becomes glass yarn, and said glass yarn carries out treating compound through the baster group and applies, and makes it apply treated starch type treating compound;
4) above-mentioned glass yarn is passed through buncher; Said buncher is divided into buncher and following buncher, and said glass yarn is carried out boundling;
5) above-mentioned glass yarn is carried out the spinning cake moulding process, process the spinning cake yarn;
6) above-mentioned spinning cake yarn is carried out twisting technique.
7. the preparation method of electronic-grade spun yarn according to claim 6; It is characterized in that; Said water cooler is made up of 13 cooling fins; Glass yarn through said bushing is passed through between said cooling fin, and the length of cooling fin and said bushing width are complementary, and cooling body length and said bushing length are complementary.
8. according to the preparation method of claim 6 or 7 described electronic-grade spun yarns, it is characterized in that said baster group is that left side, centre, three basters in right side are carried out treating compound to said glass yarn and applied; Said left side baster applies two synnema bundles; I.e. two spinning cake yarns, said in the middle of baster apply a branch of tow, i.e. spinning cake yarn; Said right side baster applies two synnema bundles, i.e. two spinning cake yarns; Said baster all uses the rubber ring transmission to carry out treating compound and applies.
9. according to the preparation method of claim 6 or 7 described electronic-grade spun yarns; It is characterized in that; The said buncher of going up comprises three the gathering roll devices in left side, centre, right side of working simultaneously; Said left side gathering roll device is boundling two synnema bundles simultaneously, a branch of tow of said middle gathering roll device boundling, and said right side gathering roll device is boundling two synnema bundles simultaneously.
10. according to the preparation method of claim 6 or 7 described electronic-grade spun yarns, it is characterized in that said buncher down is 5 independent gathering roll devices, can be respectively to 5 synnema Shu Jinhang boundlings during production.
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| CN201010605683A CN102153277B (en) | 2010-12-24 | 2010-12-24 | Drain plate for preparing electronic grade spun yarns and electronic grade spun yarn preparation method |
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| CN201010605683A CN102153277B (en) | 2010-12-24 | 2010-12-24 | Drain plate for preparing electronic grade spun yarns and electronic grade spun yarn preparation method |
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| CN102153277B true CN102153277B (en) | 2012-10-17 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503117A (en) * | 2011-11-11 | 2012-06-20 | 重庆国际复合材料有限公司 | Discharging plate and method for manufacturing electron-level spun yarn |
| CN102515504B (en) * | 2011-12-08 | 2015-02-04 | 重庆国际复合材料有限公司 | Multi-bushing plate merging wiredrawing technology and multi-bushing plate wiredrawing device employing it |
| CN105803597A (en) * | 2014-12-31 | 2016-07-27 | 林州光远新材料科技有限公司 | Method for improving strength of starch type glass fiber yarn |
| CN109574493A (en) * | 2019-01-16 | 2019-04-05 | 河南光远新材料股份有限公司 | One kind preparing improved method for electronic-grade glass yarn |
| CN109650714A (en) * | 2019-01-16 | 2019-04-19 | 河南光远新材料股份有限公司 | A kind of bushing of 7.5um electric yarn wire-drawing equipment |
| CN110467344B (en) * | 2019-09-03 | 2024-05-14 | 四川省玻纤集团股份有限公司 | Cooling device for basalt fiber wire drawing bushing |
| CN111925114A (en) * | 2020-07-15 | 2020-11-13 | 巨石集团有限公司 | Four-split-drawing production device and process for large-basis-weight yarn barrel |
| CN113913984B (en) * | 2021-11-25 | 2023-04-18 | 泰山玻璃纤维邹城有限公司 | Process method for producing two-part drawing plied yarn by 2400H bushing |
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| JP3526235B2 (en) * | 1999-04-21 | 2004-05-10 | 田中貴金属工業株式会社 | Method of manufacturing bushing for glass fiber production |
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| CN201254524Y (en) * | 2008-08-11 | 2009-06-10 | 四川威玻新材料集团有限公司 | Novel glass fiber forming drawing platinum-rhodium alloy bushing plate |
| CN101921060A (en) * | 2010-09-19 | 2010-12-22 | 江苏九鼎新材料股份有限公司 | 1600-hole quarter drawing process of alkali glass fiber |
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Address after: 400082 Dadukou District of Chongqing Bridge Industrial Park B District Patentee after: Chongqing international composite Limited by Share Ltd Address before: 400082 Dadukou District of Chongqing Bridge Industrial Park B District Patentee before: Chongqing Polycomp International Corp. |
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Effective date of registration: 20181212 Address after: 401221 Ten Suites, Negative 1-1, etc., No. 25 Yanjia Qixin Avenue, Changshou District, Chongqing Patentee after: Chongqing Tianze new materials Co. Ltd. Address before: 400082 District B of Jianqiao Industrial Park, Dadukou District, Chongqing Patentee before: Chongqing international composite Limited by Share Ltd |
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