CN107877968A - A kind of diaphragm and its preparation technology for being fitted in automobile A column surface - Google Patents
A kind of diaphragm and its preparation technology for being fitted in automobile A column surface Download PDFInfo
- Publication number
- CN107877968A CN107877968A CN201711389657.1A CN201711389657A CN107877968A CN 107877968 A CN107877968 A CN 107877968A CN 201711389657 A CN201711389657 A CN 201711389657A CN 107877968 A CN107877968 A CN 107877968A
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- CN
- China
- Prior art keywords
- diaphragm
- automobile
- layer
- fitted
- column surface
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
Abstract
The invention discloses a kind of diaphragm and its preparation technology for being fitted in automobile A column surface in auto parts field; the diaphragm includes base material top layer, sandwich layer and elastomer layer from inside to outside; elastomer layer is connected with A post surface bondings, and one is formed by coextrusion process between base material top layer, sandwich layer and elastomer layer；The technique includes raw material mixing, puts into high temperature melting pipeline, the plasticizing of extruder progress high-temperature fusion, is extruded into the steps such as membrane tube, cooling and shaping.The present invention is useful on automobile A column painted surface; diaphragm and paint face stickiness are good, are not susceptible to relative shift, and diaphragm can repeat to be bonded; and do not produce cull phenomenon; its is viscosity stabilized, and barrier is good with ultraviolet-resistent property, simultaneously; reach high intensity while there is compatibility; not only product is soft, draws Shen intensity preferable, increases certain toughness, has good absorption property.
Description
Technical field
It is to be related to one kind and be fitted in automobile A column surface to shield specifically the present invention relates to auto parts field
Diaphragm and its preparation technology.
Background technology
Automobile A column surface is the paint of one layer of electroplating bright, and its requirement standard to production environment and surface quality is very high,
In order to avoid auto parts machinery is rubbed in production, installation handling process or causes its surface tear because installation operation is improper
Or the problem of viscous dust, greasy dirt, it is therefore desirable to attach layer protecting film in the painted surface of automobile A column, terminating transport, storage
After the processing such as depositing, processing and assembling, bought in client and throw off the film using Che Shizai.
At present, there are various defects in the market major part diaphragm：
1. general diaphragm can also be changed according to the change of weather, viscosity, make its bonding unstable；
2. the exposure time is longer under the sun because of automobile, UV resistant does not irradiate common diaphragm；
3. common diaphragm can permeate rainwater after drenching with rain；
4. common diaphragm can cull, haze, ghost etc..Therefore, it is necessary to develop a kind of viscosity stabilized, uvioresistant, high-barrier, resistance to
High temperature ageing and the diaphragm that protection surface will not be polluted.
The content of the invention
In order to overcome the shortcomings of existing technology, the present invention provide a kind of diaphragm for being fitted in automobile A column surface and its
Preparation technology.
Technical solution of the present invention is as described below：
On the one hand, a kind of diaphragm for being fitted in automobile A column surface, it is characterised in that including base material top layer from inside to outside, core
Layer and elastomer layer, the sandwich layer are located between the base material top layer and the elastomer layer, the elastomer layer and A post tables
Face bonding connection, one is formed between the base material top layer, the sandwich layer and the elastomer layer by coextrusion process.
According to the present invention of such scheme, it is characterised in that the thickness of the diaphragm is 50-150 microns.
Further, the thickness on the base material top layer is 22.5-70 microns.
Further, the thickness of the sandwich layer is 22.5-70 microns.
Further, the thickness of the elastomer layer is 5-10 microns.
According to the present invention of such scheme, it is characterised in that the base material top layer is made up of following raw materials according：Polyethylene, gather
Propylene, high density ethylene, high barrier material and anti-UV auxiliary agents, each raw material account for respectively diaphragm gross weight 20%, 20%, 20%,
5%、5%。
According to the present invention of such scheme, it is characterised in that the sandwich layer is made up of following raw materials according：Base material master batch, EVA and
Polypropylene, each raw material account for 10%, 10%, the 5% of diaphragm gross weight respectively.
According to the present invention of such scheme, it is characterised in that the elastomer layer accounts for the 5% of diaphragm gross weight.
According to the present invention of such scheme, it is characterised in that the elastomer layer includes plastic pellet, the plastic pellet
In be mixed with additive, the additive includes the high pressure sensitive adhesive master batch of stabilizer, gel fraction and had necessarily with pressure sensitive adhesive
The surfactant of compatibility.
On the other hand, a kind of preparation technology for the diaphragm for being fitted in automobile A column surface, it is characterised in that including following
Step：
Step 1, raw material corresponding to base material top layer, sandwich layer and elastomer layer is well mixed respectively respectively, it is poured into respectively
In capacity groove corresponding to each layer, and high temperature melting pipeline is automatically engaged by batch charger respectively；
Step 2, plastic pellet plastify by high-temperature fusion in an extruder；
Step 3, membrane tube is extruded into by annular die head, the film made of after compressed air is by its inflation cooling and shaping.
According to the present invention of such scheme, it is characterised in that also specific including step 4 testing procedure, the testing procedure
Including：
（1）Sheet resistance is tested；
（2）Protection film thickness is measured using Thickness measuring instrument；
（3）Use the transmitance of JK4256 mist degrees instrument test diaphragm；
（4）The viscosity of diaphragm is tested in the environment of constant temperature and humidity；
（5）Do ultraviolet test；
（6）Do barrier penetration testing；
（7）The sample film of diaphragm is attached on automobile A column paint slab bridge surface, temperature be 100 DEG C, humidity be 80% constant temperature
72 hours are placed in constant moisture test case, the high-temp resisting high-humidity resisting ability of diaphragm is tested, is not crumpled, shunk with diaphragm, the end of reel,
And diaphragm is torn, without cull, without the phenomenon that hazes to be qualified on paint face.
Further, in the sheet resistance test process to diaphragm, measured under certain temperature and humidity conditions, will
Resistivity tester is placed on diaphragm surface, the switch of resistivity tester is transferred into required voltage location, with 4.5 pounds of pressure
Insist on the continuous surface impedance pressed measurement button, read the diaphragm that LED is shown.
Further, in test process is carried out to the viscosity of diaphragm, specifically include：
1. by diaphragm by side and in extract into 2 of 25 × 300mm, non-dust cloth wiped clean of the steel plate with alcohol is put
Put 2 minutes；
2. the model film cut is just being affixed among SUS304 steel plates, the roller for being 2kg with weight is come with 300 mm/min speed
Return each pressure once and place, place 20 minutes；
3. model film is taken into computermatic electronic stripping tester measures diaphragm viscosity.
Further, in test process is carried out to the viscosity of diaphragm, measuring environment Temperature and Humidity Control exists：Temperature is
23 ± 2 DEG C, humidity is 55 ± 10%RH.
According to the present invention of such scheme, its advantage is：
The present invention is useful on automobile A column painted surface, and diaphragm and paint face stickiness are good, are not susceptible to relative shift.
The present invention is when temperature is not less than 0 DEG C, viscosity change≤± 2g, when temperature is not more than 100 DEG C, viscosity change≤
± 2g, the viscosity of diaphragm have certain stability, and viscosity does not change with the raise/lower of temperature, ensures fitting
Effect does not influence the surface of paint.
The crosslinking degree of pressure sensitive adhesive causes elastomer layer to have stability, will not overflow with the gluing of other protective layers again
Together, diaphragm can repeat to be bonded, and not produce cull phenomenon.
The present invention is viscosity stabilized, and barrier is good with ultraviolet-resistent property, not only with excellent high-temp resisting high-humidity resisting ageing properties, and
In the case of vibrations also will not scratch by protection face；Meanwhile multi-layer co-extruded EVA is mutual by the function between different plastic layers
Mend, reach high intensity while there is compatibility, not only product is soft, draws Shen intensity preferable, increases certain toughness, has good
Absorption property.
Embodiment
The present invention is further described with reference to embodiment：
A kind of diaphragm for being fitted in automobile A column surface and shielding, including base material top layer, sandwich layer and bullet from inside to outside
Property body layer, sandwich layer is located between base material top layer and elastomer layer, and the bonding of elastomer layer and sheet material connects, base material top layer, sandwich layer with
And elastomer layer forms one by coextrusion process.
The thickness of the diaphragm is 50-150 microns.Wherein, the thickness on base material top layer is 30-40 microns, its play heatproof,
High-barrier, uvioresistant effect, diaphragm docile is indeformable in the environment of 120 degree of temperature on material, does not shrink, does not play gas
Bubble；The thickness of sandwich layer is 30-40 microns, and it plays a part of diaphragm toughness reinforcing, easily adsorbs during facilitating fitting, has been not easy
Stick up；Elastomer layer is also rubber layer, and adhesive effect is played with material surface, and its thickness is 8-10 microns.
The material of main part of automobile film is polyethylene and polypropylene and rubber, and polypropylene is that main material polyethylene is time material,
Rubber is cohesive material.Preferably, the raw material on base material top layer include polyethylene, polypropylene, high density ethylene, high barrier material,
Anti- UV auxiliary agents, base weight than accounting for 20%, 20%, 20%, 5%, the 5% of diaphragm gross weight respectively.The material composition of sandwich layer includes base material
Master batch, EVA, polypropylene, its weight account for 10%, 10%, the 5% of diaphragm gross weight respectively.Elastomer layer accounts for diaphragm gross weight
5%, it includes plastic pellet, and additive is mixed with plastic pellet, and additive includes the high pressure sensitive adhesive of stabilizer, gel fraction
Master batch and the surfactant for having certain compatibility with pressure sensitive adhesive.In additive, stabilizer weight accounts for 15%, pressure sensitive adhesive master batch
Weight accounts for 80%, surfactant weight and accounts for 5%.
A kind of preparation technology for being fitted in the diaphragm that automobile A column surface shields, comprises the following steps：
1st, raw material corresponding to base material top layer, sandwich layer and elastomer layer is well mixed respectively respectively, it is poured into each layer respectively
In corresponding capacity groove.Specifically：
（1）Base material top layer automatically engages high temperature melting pipeline by base material top layer batch charger；
（2）Sandwich layer automatically engages high temperature melting pipeline by sandwich layer batch charger；
（3）Elastomer layer automatically engages high temperature melting pipeline by elastomer layer batch charger.
2nd, plastic pellet plastifies by high-temperature fusion in an extruder.
3rd, membrane tube is extruded into by annular die head, the film made of after compressed air is by its inflation cooling and shaping.
4th, test.
Test process specifically includes：
（1）Sheet resistance is tested.
In certain humiture（25 degree of temperature, humidity 50%）Under the conditions of measure, resistivity tester is placed on diaphragm
Surface, required voltage location is transferred to by switch, and measurement button is persistently pressed with 4.5 pounds of pressure, reads what LED was shown
The surface impedance of diaphragm.
（2）Protection film thickness is measured using Thickness measuring instrument.
（3）Use the transmitance of JK4256 mist degrees instrument test diaphragm.
（4）The viscosity of diaphragm is tested in the environment of constant temperature and humidity.
The viscosity of diaphragm is carried out in test process：1. by diaphragm by side and in extract into 2 of 25 × 300mm, will
Non-dust cloth wiped clean of the steel plate with alcohol, place 2 minutes, 2. the model film cut be just affixed among SUS304 steel plates,
The roller for being 2kg with weight is with 300 mm/min speed, and respectively pressure once, is placed 20 minutes, model film 3. is taken into computer back and forth
Formula electronic stripping tester measures diaphragm viscosity.
The viscosity of diaphragm is carried out in test process：Measuring environment Temperature and Humidity Control exists：Temperature is 23 ± 2 DEG C, and humidity is
55±10%RH。
（5）Ultraviolet test.
（6）Penetration testing.
（7）High-temp resisting high-humidity resisting aptitude tests.
The sample film of diaphragm is attached on automobile A column material paint face, temperature be 100 DEG C, humidity be 80% constant temperature perseverance
When placing 72 in wet test case, the high-temp resisting high-humidity resisting ability of diaphragm is tested, is not crumpled, shunk with diaphragm, the end of reel, and torn
Diaphragm, without cull, without the phenomenon that hazes to be qualified on paint face.
5th, diaphragm is attached to painted surface, when placing 72 in the environment that temperature is 100 DEG C in chamber, humidity is 80%,
After placement material protective film do not crumple, shrink, the end of reel, and tear diaphragm, paint face is without cull, without the phenomenon that hazes.
The present invention is used for automobile A column painted surface, and diaphragm and paint face stickiness are good, and it is existing to be not susceptible to any exception
As.
The present invention is when temperature is not less than 0 DEG C, viscosity change≤± 2g, when temperature is not more than 100 DEG C, viscosity change≤
±2g.The viscosity of the present invention has certain stability, and viscosity does not change with the raise/lower of temperature.
The crosslinking degree of pressure sensitive adhesive causes elastomer layer to have stability, will not overflow with the gluing of other protective layers again
Together, diaphragm can repeat to be bonded, and not produce cull phenomenon.
The present invention, which possesses high temperature resistant, high-barrier, uvioresistant, good characteristic, while multi-layer co-extruded EVA passes through difference
Plastic layer between have complementary functions, reach high intensity while there is compatibility, not only product is soft, draws Shen intensity preferable, increases
Add certain toughness, there is good absorption property.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Exemplary description is carried out to patent of the present invention above, it is clear that the realization of patent of the present invention is not by aforesaid way
Limitation, as long as employ patent of the present invention methodology and technical scheme carry out various improvement, or it is not improved will this
The design of patent of invention and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (10)
- A kind of 1. diaphragm for being fitted in automobile A column surface, it is characterised in that including base material top layer from inside to outside, sandwich layer with And elastomer layer, the sandwich layer are located between the base material top layer and the elastomer layer, the elastomer layer glues with A posts surface Connection is closed, one is formed by coextrusion process between the base material top layer, the sandwich layer and the elastomer layer.
- 2. the diaphragm according to claim 1 for being fitted in automobile A column surface, it is characterised in that the thickness of the diaphragm For 50-150 microns.
- 3. the diaphragm according to claim 1 for being fitted in automobile A column surface, it is characterised in that the base material top layer by Following raw materials according is made：Polyethylene, polypropylene, high density ethylene, high barrier material and anti-UV auxiliary agents, each raw material account for protection respectively 20%, 20%, 20%, 5%, the 5% of film gross weight.
- 4. the diaphragm according to claim 1 for being fitted in automobile A column surface, it is characterised in that the sandwich layer is by following Raw material is made：Base material master batch, EVA and polypropylene, each raw material account for 10%, 10%, the 5% of diaphragm gross weight respectively.
- 5. the diaphragm according to claim 1 for being fitted in automobile A column surface, it is characterised in that the elastomer layer accounts for The 5% of diaphragm gross weight.
- 6. a kind of preparation technology for the diaphragm for being fitted in automobile A column surface, it is characterised in that comprise the following steps：Step 1, raw material corresponding to base material top layer, sandwich layer and elastomer layer is well mixed respectively respectively, it is poured into respectively In capacity groove corresponding to each layer, and high temperature melting pipeline is automatically engaged by batch charger respectively；Step 2, plastic pellet plastify by high-temperature fusion in an extruder；Step 3, membrane tube is extruded into by annular die head, the film made of after compressed air is by its inflation cooling and shaping.
- 7. the preparation technology of the diaphragm according to claim 6 for being fitted in automobile A column surface, it is characterised in that also wrap Step 4 testing procedure is included, the testing procedure specifically includes：（1）Sheet resistance is tested；（2）Protection film thickness is measured using Thickness measuring instrument；（3）Use the transmitance of mist degree instrument test diaphragm；（4）The viscosity of diaphragm is tested in the environment of constant temperature and humidity；（5）Do ultraviolet test；（6）Do barrier penetration testing；（7）The sample film of diaphragm is attached on automobile A column paint slab bridge surface, tests the high-temp resisting high-humidity resisting ability of diaphragm, Do not crumpled, shunk with diaphragm, the end of reel, and tearing diaphragm, without cull, without the phenomenon that hazes to be qualified on paint face.
- 8. the preparation technology of the diaphragm according to claim 7 for being fitted in automobile A column surface, it is characterised in that right In the sheet resistance test process of diaphragm, measured under certain temperature and humidity conditions, resistivity tester is placed on protection Film surface, the switch of resistivity tester is transferred to required voltage location, persistently presses measurement button, read LED and show The surface impedance of the diaphragm gone out.
- 9. the preparation technology of the diaphragm according to claim 7 for being fitted in automobile A column surface, it is characterised in that right The viscosity of diaphragm is carried out in test process, is specifically included：1. by diaphragm by side and in extract into 2, non-dust cloth wiped clean of the steel plate with alcohol is placed 2 minutes；2. the model film cut is just being affixed among steel plate, is respectively pressed once and placed back and forth with roller；3. model film is taken into computermatic electronic stripping tester measures diaphragm viscosity.
- 10. the preparation technology of the diaphragm according to claim 9 for being fitted in automobile A column surface, it is characterised in that right The viscosity of diaphragm is carried out in test process, and measuring environment Temperature and Humidity Control exists：Temperature is 23 ± 2 DEG C, and humidity is 55 ± 10% RH。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389657.1A CN107877968A (en) | 2017-12-21 | 2017-12-21 | A kind of diaphragm and its preparation technology for being fitted in automobile A column surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389657.1A CN107877968A (en) | 2017-12-21 | 2017-12-21 | A kind of diaphragm and its preparation technology for being fitted in automobile A column surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107877968A true CN107877968A (en) | 2018-04-06 |
Family
ID=61771185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711389657.1A Pending CN107877968A (en) | 2017-12-21 | 2017-12-21 | A kind of diaphragm and its preparation technology for being fitted in automobile A column surface |
Country Status (1)
| Country | Link |
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| CN (1) | CN107877968A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063321A (en) * | 2019-06-11 | 2020-12-11 | 上海膜太新材料科技有限公司 | Environment-friendly automobile paint protective film and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060147716A1 (en) * | 2004-12-30 | 2006-07-06 | Jaime Braverman | Elastic films with reduced roll blocking capability, methods of making same, and limited use or disposable product applications incorporating same |
| CN104140768A (en) * | 2013-05-10 | 2014-11-12 | 鸿威光电股份有限公司 | Protection film |
-
2017
- 2017-12-21 CN CN201711389657.1A patent/CN107877968A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060147716A1 (en) * | 2004-12-30 | 2006-07-06 | Jaime Braverman | Elastic films with reduced roll blocking capability, methods of making same, and limited use or disposable product applications incorporating same |
| CN104140768A (en) * | 2013-05-10 | 2014-11-12 | 鸿威光电股份有限公司 | Protection film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063321A (en) * | 2019-06-11 | 2020-12-11 | 上海膜太新材料科技有限公司 | Environment-friendly automobile paint protective film and preparation process thereof |
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Application publication date: 20180406 |