CN114921185A - Photocuring curved surface protective film and preparation method thereof - Google Patents
Photocuring curved surface protective film and preparation method thereof Download PDFInfo
- Publication number
- CN114921185A CN114921185A CN202210528415.0A CN202210528415A CN114921185A CN 114921185 A CN114921185 A CN 114921185A CN 202210528415 A CN202210528415 A CN 202210528415A CN 114921185 A CN114921185 A CN 114921185A
- Authority
- CN
- China
- Prior art keywords
- protective film
- curved surface
- film
- surface protective
- parts
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a photocuring curved surface protective film and a preparation method thereof, and relates to the technical field of polymer films. The light-cured curved surface protective film sequentially comprises a protective film layer, a light-cured functional layer, an organic silicon adhesive layer and a release layer. The light-cured curved surface protective film prepared by the invention is simple in structure, has excellent flexibility without base material design, can be directly attached to a curved surface screen similar to a soft base material, and then is cured by UV light, so that the curved surface protective film is instantly hardened to have an excellent shaping effect, and has good hardness, wear resistance, a good smooth and anti-fouling effect on the surface, and a good touch experience effect. Compared with the existing glazing and curing protective film on the market, the product has no base material design and no polarized angle, does not influence the unlocking of lower fingerprints of a mobile phone screen, is convenient to die cut, has high material utilization rate and simple laminating operation, and can be automatically and manually laminated.
Description
Technical Field
The invention relates to the technical field of polymer films, in particular to a photocuring curved surface protective film and a preparation method thereof.
Background
With the development of intelligent devices, in order to improve the visual effect and the operation experience of consumers, various large mobile phone manufacturers have proposed curved-surface screen devices, and gradually develop into four-surface curved screens, or directly propose large curved-surface screens with two sides reaching 88 degrees like some companies.
However, the design also enables the screen to be more easily damaged than the traditional screen in the using process, so that the 3D large-curved screen protective film is produced at the same time. Traditional 3D protection film scheme, including soft substrate scheme, like TPU + silica gel/ya keli glue, the curved surface screen can directly be laminated to the product, but nail seal is serious, and the surface has worn away, and consumer experience sense is general. According to the hot bending scheme, such as HC-PET + TPU, products are bonded after being subjected to high-temperature hot bending forming, the forming effect is general, rebound is easy, and the bonding yield is low. Light curing schemes, such as HC-PET + UV curing layer schemes, are currently accepted by various mobile phone manufacturers as the latest 3D protective film technology. However, the current mainstream is fingerprint unlocking under a light-sensitive screen, PET is used as a biaxial stretching film, die cutting is carried out according to a certain angle to enable the polarization angle of the biaxial stretching film to be matched with the mobile phone polarizer so as to achieve the best unlocking effect, the material utilization rate is low, and the product is cured and shaped by means of vacuum pumping assistance and UV illumination when being attached. Except for the scheme of the soft base material, the other schemes of the existing 3D protective film are complex in structure, the processing technology has certain difficulty, and the yield is also low.
Therefore, there is a need for a curved surface protective film which can impart good hardness and wear resistance to the protective film and provide good slip and anti-smudge effects to the surface while not interfering with the unlocking of the finger print under the screen.
Disclosure of Invention
In order to overcome the technical defects, the invention provides a photocuring curved surface protective film and a preparation method thereof, which aim to solve the problems related to the background technology.
The invention provides a photocuring curved surface protective film which sequentially comprises a protective film layer, a photocuring functional layer, an organic silica gel layer and a release layer; the photocuring functional layer comprises the following components in parts by weight: 100 parts of aliphatic polyurethane UV acrylic resin, 20-50 parts of polyfunctional group acrylic molecules, 30-50 parts of solvent, 10-20 parts of isocyanate curing agent, 1-3 parts of photoinitiator, 1-3 parts of hexafluoropropylene oligomer and 2-5 parts of anti-fouling agent.
Preferably or alternatively, the multifunctional acrylic molecule is an acrylic monomer having a functionality of not less than 6 and a derivative thereof, and more specifically, is selected from one or more of dipentaerythritol hexaacrylate, hexafunctional acrylic oligomer.
Preferably or optionally, the isocyanate curing agent is selected from one or more of isophorone diisocyanate and hexamethylene diisocyanate; the photoinitiator is selected from one or more of 2-hydroxy-2-methyl-1-phenyl acetone and 1-hydroxycyclohexyl phenyl ketone.
Preferably or optionally, the organic silica gel layer comprises, by mass: 5 to 20 percent of silica gel, 25 to 50 percent of silicone resin, 30 to 60 percent of solvent, 0.5 to 1 percent of cross-linking agent, 0.5 to 1 percent of adhesion promoter and 0.5 to 1.5 percent of catalyst.
Preferably or optionally, the silica gel is selected from one or more of vinyl terminated polydimethylsiloxane and vinyl terminated polydimethylsiloxane.
Preferably or alternatively, the adhesion promoter is a complex carboxyl-terminated organosiloxane.
The invention also provides a preparation method of the photocuring curved surface protective film, which comprises the following steps:
i, mixing the photocuring functional layer in proportion, and coating the mixture on the surface of a release film;
II, drying the release film coated with the photocuring functional layer by an oven, and adhering the adhesive surface to a protective film layer to obtain a film 1;
III, mixing the organic silica gel layer in proportion, and coating the organic silica gel layer on the surface of the other release film;
and IV, drying the release film coated with the organic silica gel layer by an oven to obtain a film 2, stripping the release films on the surfaces of the film 1 and the film 2, and mutually attaching the film 1 and the film 2 to obtain the photocuring curved surface protective film.
Preferably or optionally, the protective film layer is selected from a PE protective film, a CPP protective film or a PET protective film with the thickness of 25-75 mu m and the product viscosity of 3-8 g/inch.
Preferably or optionally, the release film is a fluorine release film or a non-silicon release film with the release force less than 10g/25 mm.
Compared with the prior art, the invention has the following beneficial effects:
according to the light-cured curved surface protective film provided by the invention, the aliphatic polyurethane UV acrylic resin is used as a main resin material of a light-cured functional layer, and an isocyanate curing agent reacts with terminal hydroxyl groups of the aliphatic polyurethane UV acrylic resin, so that the light-cured curved surface protective film has excellent cohesive force after being dried, does not overflow glue during die cutting of a product, and is convenient to attach to the surface of a screen to be protected. The main resin and the monomer or oligomer can be cured under ultraviolet light and are tightly crosslinked to form a net structure, and since hexafluoropropylene contains functional groups with higher density, the crosslinking reaction of the chain segments enables the surface of the product to have higher hardness, so that the product is not easy to scratch and has better nail print prevention effect. Compared with the common free fluorine-containing auxiliary agent, the hexafluoropropylene oligomer can participate in the curing reaction of the main resin under ultraviolet light, so that the product has excellent anti-fouling effect and is not easy to wear. The reactive polysiloxane is introduced in the polymerization and crosslinking processes, so that the product has a stable smooth effect, and the use experience of the product is improved. The special organic silica gel has good adhesive force to the widely used perfluoropolyether screen. The invention adopts a substrate-free design to ensure the unlocking function of the finger print under the screen, does not need die cutting at a specific angle, greatly improves the utilization rate of materials, and has the advantages of more excellent dirt resistance and smooth surface experience, simple structure and convenient operation.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
The invention will now be further described with reference to the following examples, which are intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples, where specific techniques and reaction conditions are not indicated, can be carried out according to the techniques or conditions or product specifications described in the literature in the field. Reagents, instruments or equipment of any manufacturer not indicated are commercially available.
Example 1
The photocuring 3D screen protection film of this embodiment is multilayer structure, from last to including protection rete, photocuring functional layer, organic silica gel layer down in proper order, from the type layer.
And (3) a photocuring functional layer: the thickness is 50 μm, and the weight portion of the coating comprises:
100 parts of aliphatic polyurethane UV acrylic resin,
40 parts of multifunctional acrylate monomer dipentaerythritol hexaacrylate (DPHA);
10 parts of curing agent isophorone diisocyanate;
1 part of photoinitiator 2-hydroxy-2-methyl-1-phenyl acetone and 1 part of 1-hydroxycyclohexyl phenyl ketone;
1 part of hexafluoropropylene oligomer;
anti-fouling auxiliaries AFCONA 30852 and AFCONA 38351;
15 parts of toluene and ethyl ester respectively serving as solvents;
an organic silicon adhesive layer: the thickness is 20 μm, and comprises the following components in percentage by mass:
50% of ethyl ester solvent;
8 percent of silicone crude rubber vinyl-terminated polydimethylsiloxane,
40% of MQ methyl silicone resin;
0.5 percent of cross-linking agent hydrogen-containing silicone oil;
0.5 percent of adhesion promoter composite carboxyl end-blocked organic siloxane;
1 percent of platinum catalyst
The release layer is a fluoride release film with the thickness of 50 mu m and the release force is 8g/25 mm;
the protective film is a CPP protective film with the thickness of 50 mu m and the viscosity of 3g/25 mm;
preparing a protective film: 1. coating the light-cured adhesive on the surface of the organic silicon release film after being matched according to the proportion, and attaching a cpp protective film to the adhesive surface after drying by an oven, which is an engineering; 2. and (3) mixing the organic silica gel according to the proportion, coating the mixture on the surface of a 50-micron fluoroplastic film release film, drying the release film in an oven, synchronously peeling off the engineering surface release film, and bonding the release film and the engineering surface release film to obtain the protective film product of the embodiment 1.
Example 2
The photocuring 3D screen protection film of this embodiment is multilayer structure, from last to including protection rete, photocuring functional layer, organic silica gel layer, from the type layer down in proper order.
And (3) a photocuring functional layer: the thickness is 80 μm, and the coating comprises the following components in parts by weight:
100 parts of aliphatic polyurethane UV acrylic resin,
multifunctional acrylate monomer six-functional acrylic oligomer Sartomer CN9006NS 40 parts;
15 parts of curing agent hexamethylene diisocyanate;
1 part of photoinitiator 2-hydroxy-2-methyl-1-phenyl acetone and 1 part of 1-hydroxycyclohexyl phenyl ketone;
2 parts of hexafluoropropylene oligomer;
anti-fouling auxiliaries AFCONA 30852 and AFCONA 38351;
20 parts of toluene and ethyl ester respectively serving as solvents;
an organic silicon adhesive layer: the thickness is 30 μm, and comprises the following components in percentage by mass:
45% of ethyl ester serving as a solvent;
12 percent of silicone crude rubber vinyl-terminated polydimethylsiloxane,
40% of MQ methyl silicone resin;
1% of cross-linking agent hydrogen-containing silicone oil;
0.8 percent of adhesion promoter composite carboxyl end-blocked organic siloxane;
1.2 percent of platinum catalyst
The release layer is a fluoride release film with the thickness of 50 mu m and the release force is 8g/25 mm;
the protective film is a CPP protective film with the thickness of 50 mu m and the viscosity of 5g/25 mm.
The preparation method of the protective film product of this example is the same as that of example 1.
Example 3
The photocuring 3D screen protection film of this embodiment is multilayer structure, from last to including protection rete, photocuring functional layer, organic silica gel layer, from the type layer down in proper order.
And (3) a photocuring functional layer: the thickness is 80 μm, and the coating comprises the following components in parts by weight:
100 parts of aliphatic polyurethane UV acrylic resin,
30 parts of multifunctional acrylate monomer dipentaerythritol hexaacrylate (DPHA) and 20 parts of hexafunctional acrylic oligomer (Sartomer CN9006NS)
15 parts of curing agent hexamethylene diisocyanate;
1.5 parts of photoinitiator 2-hydroxy-2-methyl-1-phenyl acetone and 1.5 parts of 1-hydroxycyclohexyl phenyl ketone;
2 parts of hexafluoropropylene oligomer;
anti-fouling auxiliaries AFCONA 30852 and AFCONA 38351;
20 parts of toluene and ethyl ester respectively serving as solvents;
an organic silicon adhesive layer: the thickness is 30 μm, and the weight percentage of the film comprises:
32.5 percent of ethyl solvent;
5 percent of silicone crude rubber vinyl-terminated polydimethylsiloxane,
45% of MQ methyl silicone resin;
1% of cross-linking agent hydrogen-containing silicone oil;
1% of adhesion promoter composite carboxyl end-capped organosiloxane;
1.5 percent of platinum catalyst
The release layer is a fluoride release film with the thickness of 50 mu m, and the release force is 8g/25 mm;
the protective film is 75 μm PET protective film with viscosity of 5g/25 mm.
The method for preparing the protective film product of this example is the same as that of example 1.
Example 4
The photocuring 3D screen protection film of this embodiment is multilayer structure, from last to including protection rete, photocuring functional layer, organic silica gel layer, from the type layer down in proper order.
And (3) a photocuring functional layer: the thickness is 150 μm, and the coating comprises the following components in parts by weight:
100 parts of aliphatic polyurethane UV acrylic resin,
30 parts of multifunctional polyfunctional acrylic acid UV monomer dipentaerythritol hexaacrylate (DPHA), 10 parts of hexafunctional acrylic acid oligomer Sartomer CN9006NS 10 and 10 parts of CN9110NS 10;
15 parts of curing agent hexamethylene diisocyanate;
1.5 parts of photoinitiator 2-hydroxy-2-methyl-1-phenyl acetone and 1.5 parts of 1-hydroxycyclohexyl phenyl ketone;
2 parts of hexafluoropropylene oligomer;
anti-fouling auxiliaries AFCONA 30851.5 and AFCONA 38351.5;
20 parts of toluene and ethyl ester respectively serving as solvents;
an organic silicon adhesive layer: the thickness is 30 μm, and comprises the following components in percentage by mass:
37% of ethyl ester serving as a solvent;
10 percent of silicone crude rubber vinyl-terminated polydimethylsiloxane,
MQ methyl silicone resin 50%;
0.7 percent of cross-linking agent hydrogen-containing silicone oil;
0.8 percent of adhesion promoter composite carboxyl end-blocked organic siloxane;
1.5 percent of platinum catalyst
The release layer is a fluoride release film with the thickness of 50 mu m and the release force is 8g/25 mm;
the protective film is 50 μm PET protective film with viscosity of 5g/25 mm.
The method for preparing the protective film product of this example is the same as that of example 1.
Comparative example
The comparative example photocuring functional layer is a photocuring 3D screen protection film commercially available on the market, and the formula comprises the following components in parts by weight: 100 parts of aliphatic polyurethane UV acrylic resin, 30-50 parts of solvent, 10-20 parts of isocyanate curing agent and 1-3 parts of photoinitiator.
The physical property parameters of the examples 1-4 and the comparative example were tested, and the results are detailed in the following table 1:
TABLE 1 comparison of the parameters of the examples with those of the comparative examples
As is apparent from the table, the light loss rates of examples 1 to 4 are much higher than those of comparative examples, the die cutting process is easier than the operation process, the comparative example needs to be die cut at a specific angle, the vacuum pumping operation is required during preparation, and the operation is more complicated than those of examples 1 to 4. And due to the multifunctional group structure of the hexafluoropropylene oligomer and the aliphatic polyurethane UV acrylic resin, the excellent wear-resistant and anti-falling effects of the embodiments 1-4 are endowed after crosslinking. The product of the embodiment 1-4 can be directly applied to unlocking of fingerprints under a screen without a substrate design, is soft in overall stiffness, can be directly cured by ultraviolet light after being completely attached to a mobile phone, and is simple to operate. Compared with a product with a base material curing film, the product does not need die cutting at a specific angle, and the utilization rate of the material is high; compared with the multi-layer structure curing film products on the market, the products in the embodiments 1 to 4 can realize permanent and stable anti-fouling and smooth effects by adding the reactive fluorine-containing and siloxane auxiliary agent.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (10)
1. A photocuring curved surface protective film sequentially comprises a protective film layer, a photocuring functional layer, an organic silica gel layer and a release layer;
the photocuring functional layer comprises the following components in parts by weight: 100 parts of aliphatic polyurethane UV acrylic resin, 20-50 parts of polyfunctional group acrylic molecules, 30-50 parts of solvent, 10-20 parts of isocyanate curing agent, 1-3 parts of photoinitiator, 1-3 parts of hexafluoropropylene oligomer and 2-5 parts of anti-fouling agent.
2. The light-curable curved surface protective film according to claim 1, wherein the multifunctional acrylic molecule is an acrylic monomer having a functionality of not less than 6 and a derivative thereof, and more specifically, is one or more selected from dipentaerythritol hexaacrylate and hexa-functional acrylic oligomer.
3. The photo-curable curved surface protective film according to claim 1, wherein the isocyanate curing agent is one or more selected from isophorone diisocyanate and hexamethylene diisocyanate.
4. The photo-curable curved surface protective film according to claim 1, wherein the photo-initiator is selected from one or more of 2-hydroxy-2-methyl-1-phenyl acetone and 1-hydroxycyclohexyl phenyl ketone.
5. The light-cured curved surface protective film according to claim 1, wherein the organic silica gel layer comprises, in mass percent: 5 to 20 percent of crude silica gel, 25 to 50 percent of silicone resin, 30 to 60 percent of solvent, 0.5 to 1 percent of cross-linking agent, 0.5 to 1 percent of adhesion promoter and 0.5 to 1.5 percent of catalyst.
6. The photo-curable curved surface protective film according to claim 1, wherein the silicone gum is one or more selected from vinyl terminated polydimethylsiloxane and vinyl terminated polydimethylsiloxane.
7. The light-cured curved surface protective film according to claim 1, wherein the adhesion promoter is a complex carboxyl-terminated organosiloxane.
8. A preparation method of a photocuring curved surface protective film comprises the following steps:
mixing the photocuring functional layer in proportion, and coating the mixture on the surface of a release film;
II, drying the release film coated with the photocuring functional layer by an oven, and adhering the adhesive surface to a protective film layer to obtain a film 1;
mixing the organic silica gel layer according to a proportion, and coating the organic silica gel layer on the surface of the other release film;
and IV, drying the release film coated with the organic silica gel layer by an oven to obtain a film 2, stripping the release films on the surfaces of the film 1 and the film 2, and mutually attaching the film 1 and the film 2 to obtain the photocuring curved surface protective film.
9. The light-curable curved surface protective film according to claim 8, wherein the protective film layer is selected from a PE protective film, a CPP protective film or a PET protective film having a thickness of 25 to 75 μm and a product viscosity of 3 to 8 g/inch. One or more of the above-mentioned components.
10. The light-cured curved surface protection film according to claim 8, wherein the release film is one or more selected from a fluorine release film or a non-silicon release film with a release force of less than 10g/25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528415.0A CN114921185A (en) | 2022-05-16 | 2022-05-16 | Photocuring curved surface protective film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528415.0A CN114921185A (en) | 2022-05-16 | 2022-05-16 | Photocuring curved surface protective film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114921185A true CN114921185A (en) | 2022-08-19 |
Family
ID=82808097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210528415.0A Pending CN114921185A (en) | 2022-05-16 | 2022-05-16 | Photocuring curved surface protective film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114921185A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440551A (en) * | 2020-03-24 | 2020-07-24 | 太仓斯迪克新材料科技有限公司 | Flexible silica gel screen protective film and preparation method thereof |
-
2022
- 2022-05-16 CN CN202210528415.0A patent/CN114921185A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440551A (en) * | 2020-03-24 | 2020-07-24 | 太仓斯迪克新材料科技有限公司 | Flexible silica gel screen protective film and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110105896B (en) | Curved screen protective film and preparation method thereof | |
| JP6277383B2 (en) | (Meth) acrylamide urethane oligomer and active energy ray-curable resin composition containing the same | |
| WO2021213114A1 (en) | Anti-fingerprint tpu protective film for 3d curved screen and preparation method therefor | |
| KR102127848B1 (en) | Active energy ray-curable composition, cured product thereof and articles with cured film thereof | |
| KR102621940B1 (en) | Adhesive tape, adhesive tape for fixing electronic device parts, and transparent adhesive tape for optics | |
| KR101771776B1 (en) | Curing resin composition for optically clear adhesive film, optically clear adhesive film, laminate for touch screen panel, method of preparing curing resin composition for optically clear adhesive film and method of preparing laminate for touch screen panel | |
| JP5470957B2 (en) | Active energy ray-curable resin composition for film protective layer | |
| KR100864349B1 (en) | Actinic Radiation Curable Resin Composition For Film Protection Layer and Film and Optical Sheet Made by Using the Same | |
| JP5048994B2 (en) | Adhesive composition and optical functional film | |
| EP3350277A1 (en) | Curable and optically clear pressure sensitive adhesives and uses thereof | |
| CN102361947A (en) | Adhesive protective film, screen panel, and portable electronic terminal | |
| CN111534244B (en) | Protective film applied to curved surface display screen | |
| TW201623383A (en) | Heat conformable curable adhesive films | |
| CN111286277B (en) | Pressure-sensitive adhesive sheet, method for producing the same, and method for producing image display device | |
| CN112391130A (en) | Protective film and preparation method and application thereof | |
| CN113088238A (en) | Preparation method of high-peel-force fast-packaging OCA adhesive for low-surface-energy interface lamination | |
| KR100385720B1 (en) | Acrylic pressure-sensitive adhesive composition for optical use having improved rework property and laminates coated therewith | |
| CN114058289A (en) | UV visbreaking adhesive and UV visbreaking adhesive tape | |
| TW201819577A (en) | Optically clear adhesive composition, and optically clear adhesive film comprising the same, and flat panel display | |
| CN114921185A (en) | Photocuring curved surface protective film and preparation method thereof | |
| KR101614076B1 (en) | Re-release acrylic adhesive and release agent | |
| JP6596941B2 (en) | Film for processing, processed film, and production method thereof | |
| JP2016177163A (en) | Hard coat film and information display device | |
| KR20170116901A (en) | Adhesive composition and adhesive sheet for optical use | |
| KR101178641B1 (en) | New acrylate-based copolymer, method for preparing the same, and hard coating composition comprising the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |