CN108772245A - A kind of coating system that vertical bar type slit extrusion die is combined with multiple roll - Google Patents
A kind of coating system that vertical bar type slit extrusion die is combined with multiple roll Download PDFInfo
- Publication number
- CN108772245A CN108772245A CN201810776894.1A CN201810776894A CN108772245A CN 108772245 A CN108772245 A CN 108772245A CN 201810776894 A CN201810776894 A CN 201810776894A CN 108772245 A CN108772245 A CN 108772245A
- Authority
- CN
- China
- Prior art keywords
- vertical bar
- glue
- steel rider
- bar type
- extrusion die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 34
- 239000011248 coating agent Substances 0.000 title claims abstract description 31
- 238000000576 coating method Methods 0.000 title claims abstract description 31
- 239000003292 glue Substances 0.000 claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000012546 transfer Methods 0.000 claims abstract description 47
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000004831 Hot glue Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000007761 roller coating Methods 0.000 description 4
- 238000003892 spreading Methods 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
Landscapes
- Coating Apparatus (AREA)
Abstract
The invention discloses a kind of coating systems that vertical bar type slit extrusion die is combined with multiple roll, including transfer steel rider, transfer rubber roller, coating steel rider and gluing pressure roller, be provided with the vertical bar type slit extrusion die for squeezing out glue above the transfer steel rider, the vertical bar type slit extrusion die include by cope and drag pattern lobed at die main body.Bi-component hot melt adhesive is squeezed out by vertical bar type slit extrusion die after mixing, and glue is applied in piece web on transfer steel rider, then glue is carried out " thinning " by transferred rubber roller, coating steel rider by the speed ratio of setting, is finally applied on film.The advantage of this design is：(1) application rate being suitable for haves a wide reach, 5-450m/min；(2) problem of gluing unevenness in the vibration problem and width direction when overcoming high speed gluing.(3) it can be achieved to carry out accurate active control reliably to glue-spread, not influenced by operating personnel's experience, different batches glue viscosity fluctuation.
Description
Technical field
The present invention relates to package compound films to be bonded field, and especially a kind of vertical bar type slit extrusion die is combined with multiple roll
Coating system.
Background technology
Currently, five conventional roller coating adhesive dispensers are by metering steel rider and shift steel rider, in addition the baffle of both sides constitutes glue groove.
Be stored in this glue groove by the mixture glue that comes of glue feeder supply, when transfer steel rider rotation, glue from glue groove bottom also
Be that gap between two rollers is transferred steel rider and takes out of, there is certain thickness, then again by shifting rubber roller, gluing steel rider " is beaten
It is thin " after, it will be in glue application to film.The glue thickness taken out of is that the glue-spread that determines to be obtained on film is big on transfer steel rider
Small principal element.This glue spreading apparatus has the following disadvantages：(1) factor for influencing glue-spread is more, and glue-spread is caused to exist
Unstable situation (2) needs to be cleaned every 3-6 hours in use as the metering steel rider of a glue groove part, consumption
When laborious (3) be ensure production continuous, the curing rate of glue cannot be all designed too soon, this also results in compound film
Need the condition of cure of long period (16-48 hours) and higher temperature (30-50 DEG C).
Another patent (patent No. of invention patent mandate is obtained：201410803560.0) provide a kind of solution party
Case.Using the slit extrusion die of arc, metering steel rider is eliminated.Arcuate die is driven by servo motor in the upper of transfer steel rider
Square back and forth movement.By glue feeder directly for glue to arcuate die, glue is uniformly applied to transfer steel from after arc die lip extrusion
On roller.The program solves the above problem.But following problems are found in production practice：(1) it is difficult to adapt to high-speed coating.Compared with
When the high speed of service (>=120m/min), since arcuate die needs quickly continually carry out traverse motion, cause entire
The vibration of glue spreading apparatus is larger, is unfavorable for stable operation.(2) servo motor of relatively high power drives arc mould despite the use of
The traverse motion of tool, but the mould speed of conversion direction moment will necessarily be less than its normal speed, and which results in width
Gluing situation on the high side in both sides in wide direction.
It is proposed in the world by a kind of double end coating technique scheme of the Dow Chemical Company and Nuo De Mec AS joint development
Another solution.I.e. with five roller coating rubber head A gluings on the first base material film, B glue is existed A glue with five roller coating rubber head B gluings
On second base film, two components of glue are spaced apart from each other before two kinds of base films fit together, and are not present
Mutual reaction, therefore the glue of glue spreading apparatus is very stable.Two kinds of base films after gluing fit together
Afterwards, two components of glue, which are combined together, just starts mutual chemical curing reaction, due to added in advance in glue compared with
More catalyst, therefore curing reaction speed, it is only necessary to which solidification can be completed in 4-12 hours room temperature, and solidification is greatly saved
Time.But following problems are found in production practice：(1) it before fitting, is not drawn to mix between two components, it is required that
Glue-spread on gluing breadth everywhere wants highly uniform, and the glue proportioning for being otherwise bonded latter two component exceeds setting range,
Glue will be unable to normal cure.(2) the double gluing heads used are five roller coating rubber heads, and device is more complex, takes up a large area, can
It is relatively low by property, it is of high cost.(3) before formal production every time, the setting and confirmation of the glue-spread of each of which gluing head are cumbersome, need
More time is wanted to confirm.(4) it is suitable for adhesive for using for the liquid two-component glue of low molecular weight, without initial bonding strength,
When for PET (polyester film)/Al (aluminium foil), the rigidity/rigid structure film such as PET/VM-PET (vacuum aluminum-coated polyester film)
(foil) compound tense, it will generate mottled problem of appearance.
Invention content
The present invention is directed to solve one of above-mentioned technical problem in the related technology at least to a certain extent.For this purpose, this hair
It is bright to propose a kind of coating system that vertical bar type slit extrusion die is combined with multiple roll.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of coating system that vertical bar type slit extrusion die is combined with multiple roll, including shift steel rider, be located at the transfer
The transfer rubber roller at steel rider rear shifts the coating steel rider and gluing pressure roller that rubber roller rear is film gluing, feature positioned at described
It is：The vertical bar type slit extrusion die for squeezing out glue is provided with above the transfer steel rider, the vertical bar type slit squeezes
Go out mold include by cope and drag pattern lobed at die main body, there is interconnected tunnel inlets, pipe inside the die main body
Shape runner and slit conduit, wherein the stream tube road is horizontally disposed with slit conduit, the tunnel inlets are perpendicular to stream tube
Road is arranged.
As an improvement of the above technical solution, glue feeder, the glue feeder packet are provided on front side of the transfer steel rider
It includes storing container, measurement gear pump and pressure transducer, the glue feeder and vertical bar type is connected by heatable static mixing tube
The tunnel inlets of slit extrusion die.
As a further improvement of the above technical scheme, glue feeder, the transfer are provided on front side of the transfer steel rider
There are two vertical bar type slit extrusion die, the glue feeder includes storing container, measurement gear pump and pressure for setting above steel rider
Sensor, two melt adhesive buckets are correspondingly connected with two vertical bar type slit extrusion dies by utilidor respectively.
Further, the measurement gear pump is set to the storing container exit, and the pressure transducer is set to institute
State measurement gear pump lower section.
Further, the transfer steel rider, the transfer rubber roller, the coating steel rider and measurement gear pump are all made of and watch
Take motor driving.The PLC that the rotating speed of the servo motor passes through the data in reception production line data and the pressure transducer
Control.
The beneficial effects of the invention are as follows：A kind of coating system that vertical bar type slit extrusion die is combined with multiple roll, including turn
Move steel rider, positioned at the transfer rubber roller at the transfer steel rider rear, the coating steel positioned at the transfer rubber roller rear for film gluing
Roller and gluing pressure roller, it is characterised in that：The vertical bar type slit extrusion die for squeezing out glue is provided with above the transfer steel rider
Tool, the vertical bar type slit extrusion die include by cope and drag pattern lobed at die main body, there is phase inside the die main body
Intercommunicated tunnel inlets, tubular runner and slit conduit, wherein the stream tube road is horizontally disposed with slit conduit, the stream
Road import is arranged perpendicular to tubular runner.Bi-component hot melt adhesive is squeezed out by vertical bar type slit extrusion die after mixing, and glue is in
Piece web is applied on transfer steel rider, then glue is carried out " thinning " by transferred rubber roller, coating steel rider by the speed ratio of setting, most
It is applied on film eventually.The advantage of this design is：(1) application rate being suitable for haves a wide reach, 5-450m/min；(2)
The problem of gluing unevenness in vibration problem and width direction when overcoming high speed gluing.(3) it can be achieved to carry out essence to glue-spread
Accurate active control reliably is not influenced by operating personnel's experience, different batches glue viscosity fluctuation, need not also be increased multiple
Miscellaneous, expensive rubberization thickness detection device.(4) can be used higher molecular weight two-component hot melt adhesive, have initial bonding strength, when with
In PET/Al, the rigidity/rigid structure such as PET/VM-PET film (foil) compound tense not will produce mottled problem of appearance.(5) when
Using double aperture slit extrusion die scheme when, can be used added with catalyst two-component hot melt adhesive, glue can be increased substantially
Curing rate at normal temperatures improves production efficiency so as to shorten hardening time.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is first embodiment of the invention structural schematic diagram；
Fig. 2 is second embodiment of the invention structural scheme of mechanism；
Fig. 3 is PLC control flow charts of the present invention；
Fig. 4 is slit die schematic diagram of the present invention.
Label declaration：1, steel rider is shifted；2, rubber roller is shifted；3, it is coated with steel rider；4, gluing pressure roller；5, slit die；6, may be used
Heat mixing tube；7, pressure transducer；8, measurement gear pumps；9, servo motor；10, bi-component glue feeder.；11, double aperture slit
Mold；12, film；13, slit die tunnel inlets；14, slit die cast runner；15, slit conduit；16, mold section.
Specific implementation mode
Referring to Fig.1, it as the first embodiment of the present invention, discloses a kind of vertical bar type slit extrusion die and is combined with multiple roll
Coating system, including transfer steel rider 1 is located at the transfer rubber roller 2 at transfer steel rider 1 rear, after being located at the transfer rubber roller 2
Side is the coating steel rider 3 and gluing pressure roller 4 of 12 gluing of film, it is characterised in that：1 top of the transfer steel rider is provided with for squeezing
Go out the vertical bar type slit extrusion die 5 of glue.Bi-component hot melt adhesive melts in storing container 10, is pumped respectively through two measurement gears
8 are pumped out by required flow, are mixed in heatable static mixing tube 6 after warm pipeline output, then again by described
Vertical bar type slit extrusion die 5 squeezes out, and glue is applied in piece web on the transfer steel rider 1, then through the transfer rubber roller 2,
Glue thickness is carried out " thinning " by the coating steel rider 3 by the speed ratio of setting, is finally applied on 12 surface of the film.This
The advantage of kind design is：(1) application rate being suitable for haves a wide reach, 5-450m/min；When (2) overcoming high speed gluing
The problem of gluing unevenness in vibration problem and width direction；(3) it can be achieved to carry out accurate active control reliably to glue-spread,
It is not influenced by operating personnel's experience, different batches glue viscosity fluctuation, need not also increase complicated, expensive rubberization thickness
Detection device.
As an improvement of the above technical solution, the coating system is supplied by bi-component hot melt adhesive glue feeder 10
Glue, the glue feeder 10 adjust gel quantity by measurement gear pump 8, and 8 lower section of measurement gear pump is provided with pressure sensing
Device 7；The pressure in two glue conveying box roads is monitored using the pressure transducer 7, with ensure system stable operation and
Safety.The transfer steel rider 1, the transfer rubber roller 2, the coating steel rider 3 and measurement gear pump 8 are all made of servo motor
Driving；The rotating speed of the servo motor is controlled by PLC.When work, the gluing speed of service, painting by PLC according to production line
The data such as the proportioning between glue width, the unit area glue-spread of setting, gear pumpage, two component glue, calculate two institutes
The rotating speed of measurement gear pump 8 is stated, and two measurement gear pumps 8 of the servo motor driven is ordered to execute, two-component glue is pressed
Ratio and flow are output to heat preservation glue conveying box, and through that can heat static mixing tube 6, transfer steel rider 1, transfer rubber roller 2, gluing steel rider
3, it is finally applied on the surface of film 12.In this way, the adjustment of glue-spread size becomes extremely easy, need to only be changed by PLC
Drive the rotating speed of the servo motor of measurement gear pump 8, you can the coating weight for changing the glue being coated on 12 surface of film is not necessarily to
It is gone to determine control glue gap with clearance gauge again, reduces the dependence to operating personnel's experience, while also not by different batches glue viscosity
The influence of fluctuation.
It is connected between the glue feeder 10 and vertical bar pattern tool 5 by the way that static mixing tube 6 can be heated, bi-component hot melt
Glue carries out uniformly adequately mixing in the mixing tube 6.6 outer wall of the mixing tube is cased with heating muff, ensures two groups
Divide the viscosity when mixing to be in lower state, therefore the faster double component solvent-free gluing of curing rate can be selected
Agent greatly improves production efficiency.
With reference to Fig. 2, as the second embodiment of the present invention, a kind of vertical bar type slit extrusion die and multiple roll group are disclosed
The coating system of conjunction, including transfer steel rider 1, are located at the transfer rubber roller 2 at 1 rear of the transfer steel rider, are located at the transfer rubber roller 2
The coating steel rider 3 and gluing pressure roller 4 for gluing at rear, it is characterised in that：There are two use for 1 top setting of the transfer steel rider
In the vertical bar type slit extrusion die 11 for squeezing out glue.Two-component glue respectively enters respective mold with flow according to a certain percentage
Tunnel inlets, after being squeezed out by slit die 11, two groups of glue are applied in piece web on transfer steel rider 1 respectively, then transferred glue
Glue is carried out " thinning " and adequately mixing by roller 2, coating steel rider 3 by the speed ratio of setting, before being finally applied to film 12.This
The advantage of kind design is：(1) the two-component hot melt adhesive that higher molecular weight can be used, has initial bonding strength, when for PET/Al,
Rigidity/the rigid structure such as PET/VM-PET film (foil) compound tense, not will produce mottled problem of appearance.(2) relative to using
The glue spreading apparatus of glue groove or single slit die, there is no glue groove, mixing tubes etc. largely to gather mixed two-component for this programme
The position of glue, therefore mixed two-component glue need not be scrupled because reaction leads to very much glue groove, mixes asking for blockage soon
Topic improves the curing rate of glue at normal temperatures, and then substantially so as to use the two-component hot melt adhesive for being added with catalyst
Improve production efficiency.
The above concrete structure and dimension data are to be illustrated to presently preferred embodiments of the present invention, but the present invention creates
It makes and is not limited to the embodiment, those skilled in the art can also make kind under the premise of without prejudice to spirit of that invention
The equivalent variations or replacement, these equivalent deformations or replacement of kind are all contained in the application claim limited range.
Claims (5)
1. a kind of coating system that vertical bar type slit extrusion die is combined with multiple roll, including shift steel rider (1), be located at the transfer
The transfer rubber roller (2) at steel rider (1) rear, be located at it is described transfer rubber roller (2) rear be film (12) gluing coating steel rider (3) and
Gluing pressure roller (4), it is characterised in that：The vertical bar type slit for squeezing out glue is provided with above the transfer steel rider (1) to squeeze out
Mold (5), the vertical bar type slit extrusion die (5) include the die main body formed by two panels mold section (16), the mold master
Internal portion has interconnected tunnel inlets (13), tubular runner (14) and slit conduit (15), wherein the stream tube road
(14) horizontally disposed with slit conduit (15), the tunnel inlets (13) are arranged perpendicular to tubular runner (14).
2. the coating system that vertical bar type slit extrusion die according to claim 1 is combined with multiple roll, it is characterised in that：Institute
It states and is provided with glue feeder (10) on front side of transfer steel rider (1), the glue feeder includes storing container (17), measurement gear pump (8)
With pressure transducer (7), the glue feeder (10) connects vertical bar type slit extrusion die by heatable static mixing tube (6)
Have the tunnel inlets of (5).
3. the coating system that vertical bar type slit extrusion die according to claim 1 is combined with multiple roll, it is characterised in that：Institute
It states and is provided with glue feeder on front side of transfer steel rider (1), there are two vertical bar type slit extrusion dies for setting above the transfer steel rider (1)
Have (5), the glue feeder includes storing container (17), measurement gear pump (8) and pressure transducer (7), two melt adhesive bucket difference
It is correspondingly connected with two vertical bar type slit extrusion dies (5) by utilidor.
4. the coating system that vertical bar type slit extrusion die according to claim 2 or 3 is combined with multiple roll, feature exist
In：The measurement gear pump (8) is set to the storing container (17) exit, and the pressure transducer (7) is set to described
Measurement gear pumps below (8).
5. the coating system that vertical bar type slit extrusion die according to claim 2 or 3 is combined with multiple roll, feature exist
In：The transfer steel rider (1), the transfer rubber roller (2), the coating steel rider (3) and measurement gear pump (8) are all made of and watch
Motor (9) driving is taken, the rotating speed of the servo motor (9) is by receiving in production line data and the pressure transducer (7)
The PLC of data is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776894.1A CN108772245B (en) | 2018-07-09 | 2018-07-09 | Coating system combining straight strip type slit extrusion die and multiple rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776894.1A CN108772245B (en) | 2018-07-09 | 2018-07-09 | Coating system combining straight strip type slit extrusion die and multiple rollers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108772245A true CN108772245A (en) | 2018-11-09 |
| CN108772245B CN108772245B (en) | 2024-05-07 |
Family
ID=64031289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810776894.1A Active CN108772245B (en) | 2018-07-09 | 2018-07-09 | Coating system combining straight strip type slit extrusion die and multiple rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108772245B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569953A (en) * | 2018-12-14 | 2019-04-05 | 江西明冠锂膜技术有限公司 | Membrane material and lithium electrode plate substrate coating waste water method |
| CN113263823A (en) * | 2021-05-31 | 2021-08-17 | 阳信思踏奇实业有限责任公司 | Composite manufacturing process of woven tufted carpet |
| CN113522699A (en) * | 2021-07-22 | 2021-10-22 | 裴贵芝 | Plastic film and preparation process thereof |
| CN113874125A (en) * | 2019-04-24 | 2021-12-31 | 豪迈股份公司 | Adhesive coating device |
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| CN113522699A (en) * | 2021-07-22 | 2021-10-22 | 裴贵芝 | Plastic film and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108772245B (en) | 2024-05-07 |
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Effective date of registration: 20240612 Address after: 1st, 2nd, and 3rd floors of Building 7, Industrial Acceleration Park, No. 333 Nanshan Road, Jianghai District, Jiangmen City, Guangdong Province, 529000 (7 # factory building) Patentee after: GUANGDONG SINO-ADHESIVE NEW MATERIAL TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 529000 floor 4, building 3, high tech service center, Jianghai District, Jiangmen City, Guangdong Province Patentee before: GUANGDONG HUAZHAN NEW MATERIAL RESEARCH CO.,LTD. Country or region before: China |