1210 results about "Release liner" patented technology

The invention relates to the technical field of folding screen supporting films, and particularly discloses a double-layer buffering supporting film for a flexible folding display screen and a preparation method of the double-layer buffering supporting film. The double-layer buffer supporting film for the flexible folding display screen sequentially comprises a release film layer, a first adhesive layer, a first stainless steel layer, a second adhesive layer, a second stainless steel layer and a protective film layer from top to bottom, the first adhesive layer and the second adhesive layer are prepared by curing the same pressure-sensitive adhesive composition; the pressure-sensitive adhesive composition is prepared from the following raw materials: acrylate copolymer, hydrogenated rosin glyceride, hyperbranched polyesteramide-dopamine conjugate, acylhydrazone bond modified siloxane, a curing agent and a silane coupling agent; the protective film layer comprises the following raw materials: PET particles, nano silicon dioxide, an ethylene-vinyl acetate copolymer and an antioxidant. The double-layer buffer supporting film has the advantages of being high in supporting rigidity and interlayer peel strength, and serious folds caused by long-term repeated folding of the folding screen can be relieved.

The invention relates to an antistatic PET (Polyethylene Terephthalate) base film for preparing a polaroid release film and a preparation method thereof, the release film base film is prepared by taking an optical-grade PET slice as a main body, adding modified PET with a specific structure and a modified SiO2 filler, and carrying out co-extrusion casting, a unique three-section stretching process and coating with a coating liquid. According to the invention, material modification and process improvement are carried out, specifically, an optical-grade PET slice is taken as a main body material, modified PET and a modified SiO2 filler with a specific structure are added, a film is prepared through co-extrusion casting and a unique three-section stretching process, and then the surface of the film is coated with a layer of antistatic coating liquid, so that the antistatic film is obtained. The finally prepared base film has low alignment angle, low transverse hot shrinkage rate and high surface adhesion, keeps the characteristics of high light transmittance and low haze of an optical-grade polyester film, endows the film with certain antistatic property, and is particularly suitable for being used as a release film of a high-end polaroid.

The invention relates to the technical field of adhesive tapes, and particularly discloses a UV (ultraviolet) visbreaking anti-acid adhesive tape for thinning flexible glass and a preparation process of the UV visbreaking anti-acid adhesive tape. A UV viscosity-reducing acid-resistant adhesive tape for thinning flexible glass comprises a base material layer, a pressure-sensitive adhesive layer and a release film layer which are stacked in sequence, and the pressure-sensitive adhesive layer is prepared from the following raw materials: 85-120 parts by mass of an acrylate copolymer, 3-5 parts by mass of a cross-linking agent, 1.5-2.5 parts by mass of a photoinitiator, 2-5 parts by mass of an acid-resistant nano filler and 0.2-0.4 part by mass of an amine catalyst; the acrylate copolymer is prepared from the following raw materials in parts by mass: 20-30 parts of an imidazolinyl-containing monomer, 15-25 parts of a large-steric-hindrance alkyl-containing monomer, 45-55 parts of a flexible monomer and 5-10 parts of a carboxyl-containing monomer. The UV visbreaking acid-resistant agent prepared by the invention has relatively good acid resistance and reliable UV visbreaking and high initial bonding balance.

The invention relates to the field of touchpad film materials, and discloses a preparation process of a touchpad mylar and a product. The preparation process of the touch panel mylar comprises the following steps: S1, transferring a texture layer on one side surface of a base material layer by using UV transfer printing glue; s2, carrying out three times of silk-screen printing on the other side surface of the base material layer to sequentially form a first metal ink layer, a second metal ink layer and an insulating ink layer; s3, performing vacuum coating on the texture layer to form a wear-resistant anti-fingerprint layer; and S4, adhering an adhesive layer with a release film to the insulating ink layer, and performing die cutting to obtain the touch panel mylar. The prepared touchpad mylar has good metal texture, wear resistance, smoothness and insulativity, the ink layer and the base material layer are stably attached, the ink layer is not prone to falling off and layering under the use conditions of long-term environment temperature and frequent screen touching of the touchpad mylar, and the touch sensitivity is good.

The invention relates to the technical field of adhesive tapes, in particular to a convex ball-mounting wafer thinning adhesive tape, a preparation method thereof and a wafer thinning machine, the thinning adhesive tape comprises a base material film, a viscosity-reducing adhesive layer and a release film; the preparation method comprises the following steps: preparing a first polymer network; preparing a second polymer network; the adhesive composition is obtained; forming a liquid film; covering the base material film on a liquid film; covering a release film on the upper surface of the fixed module in the wafer thinning machine; in a wafer thinning machine, the wafer with the base material film is installed on a release film, and heating treatment is carried out on the laminated wafer so as to directly form a solidified thinning adhesive tape on the wafer; by constructing a thermal / optical dual-curing interpenetrating polymer network with a dual visbreaking mechanism and combining with a special preparation method of the thinning adhesive tape in a thinning machine, the probability that a convex ball-mounting wafer generates microcracks or warps in a specific area when the adhesive tape is used for thinning operation is reduced.

The invention discloses a PVC blue protective film and a preparation method thereof. The PVC blue protective film comprises a release layer, a blue PVC base film, a priming coat and a pressure-sensitive adhesive layer which are sequentially arranged from top to bottom. The release layer and the priming coat are respectively designed on the two surfaces of the blue PVC base film, a direct coating and direct collecting process mode is adopted, an additional release film does not need to be used, the preparation process is simplified, the production cost is reduced, meanwhile, a plasticizer in the blue PVC base film can be sealed, and the plasticizer is effectively prevented from being separated out; a direct coating process instead of a transfer coating process is adopted, and the base coating is used for clamping, so that the binding strength of the pressure-sensitive adhesive layer and the blue PVC base film is better; the pressure-sensitive adhesive layer adopts a slit coating technology, so that the coating thickness is more uniform, rolling is not easy to occur, and the stability of product quality is improved; the resin in the bottom coating can react with the isocyanate curing agent in the pressure-sensitive adhesive layer, and the resin in the pressure-sensitive adhesive layer can also react with the isocyanate curing agent in the bottom coating, so that the bonding force between the layers is enhanced.

The invention relates to the technical field of TPU materials, in particular to a high-wear-resistance anti-oxidation electroplated TPU film and a preparation method thereof.The high-wear-resistance anti-oxidation electroplated TPU film comprises an elastic UV protection layer, a high-wear-resistance anti-oxidation layer, an electroplated layer and a release paper layer which are sequentially arranged from top to bottom; the high-wear-resistant anti-oxidation layer is made of a high-wear-resistant anti-oxidation TPU (Thermoplastic Polyurethane) material, the electroplated layer is made of an aluminum electroplated film layer, and the release paper layer is made of a PET (Polyethylene Terephthalate) release film layer. The high-wear-resistance anti-oxidation electroplating TPU film has the advantages of wear resistance, oxidation resistance, difficulty in delamination, no conductivity and no sparking, is environment-friendly and energy-saving in the preparation process, and can be used for replacing an electroplating film of a traditional electroplating processing technology.

A release film comprising: a laminated film in which a first coating layer B1 containing a polyester resin containing an inorganic pigment, a void-containing layer A containing voids therein, and a second coating layer B2 containing a polyester resin containing an inorganic pigment are laminated in this order; and a release layer C on at least one side of the laminated film, wherein the void-containing layer A is made of a composition containing a polyester resin, a polyolefin resin, and a silicone resin, and has an apparent density of 0.80 g / cm3 or more and 1.20 g / cm3 or less.

A building system and corresponding method may include a building structure. A building system and corresponding method may include a building envelope membrane installed on the building structure, the building envelope membrane comprising: a first release liner, wherein the first release liner comprises: a first polymer, and a UV stabilizer, wherein the first release liner includes 1 wt. % to 90 wt. % of the UV stabilizer based on a total weight of the first release liner, wherein the first release liner is an outer layer, wherein the first release liner is removable, a first adhesive layer, a membrane layer, wherein the first adhesive layer is positioned between the first release liner and the membrane layer; and a second adhesive layer, wherein the membrane layer is positioned between the first adhesive layer and the second adhesive layer, wherein the second adhesive layer contacts the building structure.

The invention relates to the technical field of high polymer materials, in particular to self-cleaning organic silicon foam with a micro-nano structure and a super-hydrophobic surface and a preparation method of the self-cleaning organic silicon foam. The surface structure of the release film is customized through one-step molding transfer printing, and a release agent of the release film contains a super-hydrophobic modified organic silicon light diffusion agent. The light diffusant is mainly silicon dioxide or organic silicon resin microspheres modified by surface long-chain silane. The surface structure of the customized release film is an inverted pyramid-shaped micro-nano structure. The organic silicon foam obtained according to the process has the surface micro-nano structure, super-hydrophobic and self-cleaning functions, and is particularly suitable for manufacturing daily and industrial pads such as mouse pads, table mats and placemats.

The invention relates to a method for manufacturing SCK paper having a basis weight in the range of 50 to 70 g / m2, wherein an optimal combination of BSKP and BCTMP is used to adjust the properties of the fiber furnish. In SCK papers with low basis weight the bulk of the formed paper web upon paper manufacturing may be controlled by means of the fiber furnish, without downgauging and without adverse effects to other paper properties, which would prevent the use of the SCK paper as substrate layer in a release liner. Thus SCK paper with exceptionally high share of BCTMP in the fiber furnish may be produced into the same thickness as was possible before for a conventional supercalendered kraft paper having a higher basis weight, while maintaining other quality characteristics of the paper sufficient for use as a substrate layer of an industrial release liner.

The invention relates to a method for manufacturing glassine paper having a basis weight of less than 50 g / m2, wherein an optimal combination of BSKP, BHKP and BCTMP is used to adjust the properties of the fiber furnish. In glassine papers with very low basis weight the formation of the paper web upon paper manufacturing may be controlled by means of the fiber furnish optimization, which can be used to produce exceptionally thin glassine paper without downgauging and without adverse effects to other paper properties, which would prevent the use of the glassine paper as substrate layer in a release liner. Thus glassine paper with a moderate share of BCTMP in the fiber furnish may be produced, that has quality characteristics of the paper sufficient for use as a substrate layer of an industrial release liner.

The invention provides an adhesive tape and a double-glass structure product. The adhesive tape comprises a release film layer, a pressure-sensitive adhesive layer and a base material layer which are sequentially stacked, the pressure-sensitive adhesive layer comprises a flaky magnetic filler; the flaky magnetic filler comprises a first-direction flaky magnetic filler and a second-direction flaky magnetic filler, an acute angle between the normal direction of the first-direction flaky magnetic filler and the winding axis direction of the adhesive tape is 0-45 degrees, and the first-direction flaky magnetic filler accounts for 50-100% of the weight of the flaky magnetic filler. By adding the flaky magnetic filler into the pressure-sensitive adhesive layer and adjusting the orientation of the flaky magnetic filler in the pressure-sensitive adhesive layer, the transverse and longitudinal water resistance of the adhesive tape is remarkably improved, the weather resistance and bonding strength of the adhesive tape are considered, and when the adhesive tape is applied to objects with water resistance requirements on edges or adhesive tape bonding parts, such as photovoltaic modules, laminated glass and the like, the adhesive tape has excellent water resistance. Effective protection can be provided, and the service life of assemblies is effectively prolonged.

The present invention provides a printable decal film having flashing points, wherein the printable decal film having flashing points comprises sequentially laminated protective layer, coating layer, first substrate layer, first installation adhesive layer, printing layer, second substrate layer, second installation adhesive layer and release film layer; the protective layer is provided on the coating layer, the first substrate layer is provided underneath the coating layer, the first installation adhesive layer is provided underneath the first substrate layer, the printing layer is provided underneath the first installation adhesive layer, the second substrate layer is provided underneath the printing layer, the second installation adhesive layer is provided underneath the second substrate layer, and the release film layer is provided underneath the second installation adhesive layer.

A UV-tackifiable adhesive tape and a preparation method therefor. The UV-tackifiable adhesive tape comprises a substrate layer, a UV-tackifiable adhesive layer and a release film layer, wherein the substrate layer, the UV-tackifiable adhesive layer and the release film layer are sequentially laminated from bottom to top; and the UV-tackifiable adhesive layer comprises a modified polyester resin, a monofunctional UV photocuring monomer, a polyfunctional photocuring compound, a curing agent, a photoinitiator and a stabilizer. The UV-tackifiable adhesive layer comprises the modified polyester resin as a basic polymer, and the polyester resin can effectively improve the adhesion between the adhesive layer and a substrate before UV curing of the UV-tackifiable adhesive layer, improve the bonding strength between the UV-tackifiable adhesive layer having been UV-cured and an adhered object, and also enhance the high-temperature release force and weather resistance of the UV-tackifiable adhesive layer having been UV-cured.

Article comprising, in order: a first polymeric film having first and second, opposed major surfaces; a first primer layer having first and second opposed, major surfaces on the first major surface of the first polymeric film, wherein for a distance of at least 25 nm starting from the first major surface of the first 5 primer layer toward the second major surface of the first primer layer there is an average Si content, on a theoretical elemental basis, not greater than 15 atomic percent; and a first release layer having first and second opposed, major surfaces, wherein the second major surface of the first release layer is in direct contact with the first major surface of the first primer layer, wherein the first release layer comprises, on a theoretical elemental basis, Si. Articles described herein are useful, for example, as a release liner for 10 casting pressure sensitive adhesives thereon.

This invention relates to a release film for an oxide solid electrolyte membrane, the release film comprising a release substrate layer and an EVA functionalized coating coated on the surface of the release substrate layer, wherein the vinyl acetate content of the EVA functionalized coating is between 10% and 50%. Furthermore, this invention also provides an oxide solid electrolyte membrane comprising a release film, an oxide solid electrolyte membrane body, and a carrier as described above, wherein the oxide solid electrolyte membrane body is located between the release film and the carrier, and the release film is bonded to the oxide solid electrolyte membrane body via the EVA functionalized coating.

The invention discloses a preparation method of an ultrathin sulfide solid electrolyte dry-method membrane, relates to the technical field of solid electrolyte dry-method membranes, and solves the problems that a traditional solid electrolyte dry-method membrane needs to be subjected to transfer printing after being rolled, holes and cracks exist in an electrolyte membrane during transfer printing, and the thickness of the electrolyte membrane is difficult to reach 30 microns or below. Comprising the following steps: S1, preparing a positive thick film; s2, preparing an electrolyte thick film; s3, sequentially stacking the release film, the positive electrode thick film and the electrolyte thick film to form a laminated structure; s4, carrying out multi-stage rolling on the laminated structure by using a roller press and adopting a differential temperature multi-stage composite rolling method, and carrying out synchronous thinning and compounding on the positive electrode thick film and the electrolyte thick film to form a composite film; and S5, stripping the release film from the composite film to obtain the ultrathin sulfide solid electrolyte dry film. The problem that holes and cracks are generated in the transfer printing link after rolling of a traditional electrolyte thick film is solved.

To provide a film for acoustic component that can be peeled off without tearing from the release film when the release film is peeled off before molding, while maintaining high shape retention before molding and high formability and mold-following property during molding.SOLUTION: A film for acoustic component is curable and has the following (a) viscoelastic properties. (a) Storage modulus E' at a measurement temperature of 20°C and a frequency of 10 Hz is between 0.1 MPa and 500 MPa.SELECTED DRAWING: None

The invention belongs to the technical field of automobile paint surface protective films, and particularly relates to an environment-friendly heat-insulating automobile paint surface protective film and a preparation method thereof. The environment-friendly heat-insulating automobile paint surface protective film comprises a protective film, a self-cleaning coating, a first TPU base material, a heat-insulating coating, a second TPU base material, a pressure-sensitive adhesive layer and a release film from top to bottom, the heat-insulating coating comprises the following raw materials in parts by mass: 100 parts of waterborne polyurethane resin emulsion, 15-25 parts of a fatty acid ester modified heat-insulating compound, 1-2 parts of an ultraviolet light absorber and 5-8 parts of an auxiliary agent; the heat insulation compound comprises glass fiber powder, hollow glass beads and nano rare earth oxide; the environment-friendly heat-insulating automobile paint surface protective film provided by the invention has the advantages of high light transmittance, good heat-insulating property, good ultraviolet resistance, good ductility and environment friendliness.

The invention discloses an impact-resistant acrylic foam tape and a preparation method thereof. The acrylic foam tape comprises a first release film layer, a first pressure-sensitive adhesive layer, a first foam layer, a second foam layer, a third foam layer, a base material layer, a second pressure-sensitive adhesive layer and a second release film layer which are sequentially stacked. According to the impact-resistant acrylic foam tape and the preparation method thereof provided by the invention, a laminated structure of the first foam layer, the second foam layer and the third foam layer is adopted to replace single-layer foam in the prior art, and the foam buffer layer is sequentially divided into a'hard-soft-hard 'or'hard-soft' multi-layer structure from top to bottom. When the foam adhesive tape is impacted in the vertical direction, the foam adhesive tape can be converted and decomposed into stress diffusion in multiple directions by the first foam layer, then energy consumption is carried out through mutual friction among the fillers, and then a bonding material is fully protected through the buffering effect of the second foam layer and the third foam layer.

The invention discloses a release film for semiconductor packaging based on PET and ETFE compounding and a preparation method of the release film, and belongs to the technical field of film materials, the release film structurally comprises a PET base material layer, an adhesive layer and an ETFE layer which are sequentially arranged, and the adhesive layer is prepared from the following raw materials in parts by mass: 40-60 parts of fluorine-containing acrylate compound; 20 to 30 parts of epoxy modified organic silicon resin; 5 to 10 parts of nano silicon dioxide; 1 to 2 parts of a photoinitiator; wherein the surface of the contact side of the PET base material layer and the adhesive layer is subjected to plasma treatment or corona treatment, and the dyne value is larger than or equal to 50 mN / m; the surface of the side, making contact with the adhesive layer, of the ETFE layer is subjected to fluoridation treatment, and the surface roughness Ra is smaller than or equal to 1 micrometer. The release film has the advantages of controllable release force in a range of 0.1-5N / 25mm, good stability, temperature resistance of 175 DEG C, good organic solvent resistance, and wide application prospect in the field of semiconductor packaging.

The utility model discloses composite protective paper, a backlight module and a display, and the composite protective paper comprises a black aluminum foil mylar shielding film which is provided with a sticky and conductive first surface and a non-sticky and non-conductive second surface; the heat insulation film is arranged on a partial area of the first surface of the black aluminum foil Mylar shielding film; the nanometer heat dissipation film is arranged on the heat insulation film; and the first release film is arranged in the rest area of the first surface of the black aluminum foil Mylar shielding film. The composite protective paper is applied to the IC position of the display, heat generated when the IC works is uniformly dissipated in the plane direction through the nano heat dissipation film, and the heat is blocked in the vertical direction through the heat insulation film, so that the heat transferred to a display screen or a cover plate screen on the front side is reduced, and the display performance is improved.

The invention relates to a low-alignment-angle high-heat-resistance release film base film for a polaroid and a preparation method thereof, and the release film base film is prepared by taking an optical-grade PET slice as a main body material, adding modified PET and modified SiO2 filler with a specific structure, and carrying out co-extrusion casting and a unique three-section stretching process. According to the modified PET, a 2-(pyridine-3-yl) terephthalic acid comonomer and ionic liquid intercalated montmorillonite are introduced, so that the rigidity and heat resistance of a molecular chain are improved, and a heterogeneous nucleation point is provided; the surface of the modified SiO2 filler is grafted with a terpolymer, so that good compatibility with a matrix and internal lubrication are realized; according to the preparation method, a transverse-longitudinal-transverse three-section stretching sequence and step-by-step increasing temperature control are adopted to cooperatively regulate and control orientation and crystallization of molecular chains; and finally, the optical-grade polyester film with low alignment angle, low transverse thermal shrinkage rate and high surface adhesion is prepared, and is particularly suitable for being used as a release film of a high-end polaroid.

The present invention provides a TPU printable substrate film, comprising a first release film layer, a substrate layer, an installation adhesive layer and a second release film layer sequentially laminated; the first release film layer is provided on the substrate layer, the installation adhesive layer is provided underneath the substrate layer, and the second release film layer is provided underneath the installation adhesive layer; wherein a thickness of the first release film layer is 12˜188 μm; a thickness of the substrate layer is 2˜188 μm; a thickness of the installation adhesive layer is 20˜100 μm and a thickness of the second release film layer is 12˜188 μm. The present invention provides a TPU printable substrate film, configured for production and manufacturing of the printable decal films, and the TPU printable substrate films made by spraying coating have very good extension and anti-aging performance.

A transfer sheet for producing an exterior member includes a metal member, the transfer sheet including: a releasing film, and a transfer layer disposed on one surface of the releasing film, wherein the transfer layer includes a first protective layer, a second protective layer, and a pattern layer, in this order from a releasing film side, in a thickness direction; the first protective layer and the second protective layer include a weather resistant agent; the transfer layer includes a low covered area with a hiding power ratio, measured according to JIS K 5600-4-1, of 50% or less; and in the low covered area, an ultraviolet ray transmittance is 1% or less, and a visible light transmittance is 40% or more.

The application discloses a kind of rheological property test methods of adhesive film.The rheological property test method includes;S1, provide multiple adhesive film components;S2, remove the film release film of one of the adhesive film components, and remove the film release film of the adhesive film component is fixed to workbench, bottom film release film is in contact with workbench;S3, remove the film release film and bottom film release film of the remaining multiple adhesive film components in turn, and multiple adhesive film bodies are laminated and bonded together to reach set thickness, wherein the last adhesive film component retains bottom film release film, so that multiple adhesive film bodies are located between two bottom film release films, and two bottom film release films and multiple adhesive film layers between two bottom film release films are to be tested;S4, remove the tested piece from workbench, and keep the tested piece at a set temperature for a set time to eliminate the stress of the tested piece;S5, test the rheological property of the tested piece after stress relief.

The invention provides a release film re-pasting method capable of avoiding graphene damage, and relates to the technical field of graphite material calendaring, and the method comprises the following steps: preparing a graphene blank; independently calendaring and shaping the graphene blank, and rolling while calendaring to obtain a graphene substrate; preparing a release film body, and attaching the release film body to the surface of the graphene substrate to obtain a finished product; and the finished product is rolled. According to the invention, the release film body is re-pasted on the surface of the calendered and shaped graphene substrate, and the release film body is not calendered along with the graphene blank in the compounding process of the graphene substrate and the release film body, so that graphene powder can be prevented from being embedded into a coating gap of the release film body, and adhesion residues are unlikely to occur in the process of stripping the release film body; the stripping damage is reduced, and the integrity and uniformity of a graphene product are remarkably improved.

The utility model discloses a heating and laminating device and hot-pressing laminating equipment, and belongs to the technical field of material heating and laminating, the heating and laminating device comprises a bearing mechanism, a thin film feeding mechanism, a film strip feeding mechanism, a release film feeding mechanism and a hot-pressing mechanism, the release film feeding mechanism is used for feeding a release film between a film strip to be subjected to hot-press fitting and the hot-press fitting mechanism, so that the hot-press fitting mechanism can perform hot-press fitting of the film strip on a thin film material across the release film. According to the heating and pressing device, the release film for independently collecting and discharging is introduced between the film strip and the hot pressing mechanism, and the hot pressing head of the hot pressing mechanism is separated from the film strip by the release film, so that the phenomenon that the film strip is adhered to the hot pressing head when the film strip is heated and adhered on the film due to direct contact between the hot pressing head and the film strip is avoided; the reliability of hot-pressing bonding of the film strip on the film material is guaranteed, and the efficiency and quality of hot-pressing bonding of the film strip on the film material are improved.

The utility model discloses a high-temperature resistant release film coating device capable of automatically detecting flatness, which relates to the technical field of coating machines, and comprises a main frame body, a leveling module is arranged on the main frame body, a fixing hole is formed in the main frame body, a fixing frame is fixedly connected in the fixing hole, one side of the fixing frame is fixedly connected with a laser detector, and the other side of the fixing frame is fixedly connected with a base. A communicating bin is fixedly connected to the bottom of the fixing frame, a plurality of spray heads are arranged at the bottom of the communicating bin at equal intervals, the leveling module comprises a plurality of sliding rods, and thin rods are fixedly connected to the two ends of each sliding rod. The high-temperature-resistant release film coating device capable of automatically detecting the flatness, disclosed by the utility model, has the advantages that release films with different thicknesses can be adaptively and stably clamped, conveying deviation and deformation are prevented, and meanwhile, the release films can be pulled and smoothed before detection; the condition that the release film is wrinkled or loosened due to conveying or equipment operation is avoided, and the accuracy of flatness detection of the release film body before coating is improved.