690results about "Film/foil adhesive primer layers" patented technology

Provided is a layered body including a substrate to be ground and a support, where the substrate may be ground to a very small (thin) thickness and can then be separated from the support without damaging the substrate. One embodiment is a layered body including a substrate to be ground, a joining layer having a curable acrylate polymer and a curable acrylate adhesion modifying agent in contact with the substrate to be ground, a photothermal conversion layer having a light absorbing agent and a heat decomposable resin, and a light transmitting support. After grinding the substrate surface which is opposite that in contact with the joining layer, the layered body is irradiated through the light transmitting layer and the photothermal conversion layer decomposes to separate the substrate and the light transmitting support.

Fluoropolymer films which combine the attributes of outdoor durability, chemical resistance and thermoformability with paint-like aesthetics are formed into film structures which have at least one surface coated with a primer of amine functional polymer and an overcoat of a thermoplastic adhesive of acid modified polyolefin. Fluoropolymer films so coated are securely bonded to a variety of thermoplastic substrates forming a laminated film structure which resists delamination when exposed to moisture and humidity.

The present inventions provide a protection film and the method of making the same. The protection film comprises a substrate, made of a compound selected from the group consisting of polycarbonate (PC), polyethylene (PE), polypropylene (PP), and aryl polyester (PET); an adhesive layer, attached on at least one of the surfaces of the substrate; and an acrylic primer, arranged between the substrate and the adhesive layer for enhancing the cohesiveness. The protection film not only has a better anti-stress capability, but also is capable of reduce the thickness of the adhesive layer so as to reduce the manufacturing cost of the protection film.

This invention relates to a composite construction for use as a label or a tape to be adhered to a second substrate comprising a rubber-based material (e.g., vehicular tire), said composite construction comprising: a first substrate (e.g., paper, polymer film or combination thereof), said first substrate having a face side and an underside opposite said face side; an adhesive layer; and a barrier layer adhered to the underside of said first substrate and positioned between said first substrate and said adhesive layer, said barrier layer comprising a radiation cured acrylated epoxy derived from at least one acrylated epoxy oligomer and at least one reactive diluent selected from N-vinyl-2-pyrrolidone and N-vinylcaprolactam, said barrier layer being substantially impervious to migratory components in said adhesive layer and said second substrate. In one embodiment, a release liner is adhered to the adhesive layer. In one embodiment, the composite construction is adhered to the second substrate.

Adhesive articles comprising a primer consisting essentially of nanoparticles and methods of making the adhesive articles are provided. The adhesive article may include a polymeric foam substrate and/or an adhesive comprising less than 5% by weight of acrylic acid units.

Adhesive articles comprising a primer consisting essentially of nanoparticles and methods of making the adhesive articles are provided. The adhesive article may include a polymeric foam substrate and/or an adhesive comprising less than 5% by weight of acrylic acid units.

The invention relates to a waterborne priming coating compound, a polarizing plate containing the waterborne priming coating compound, and a preparation method of an optical film containing the priming coating. For the priming coating compound has 100 parts of weight, the priming coating compound includes 1 to 30 parts by weight of polyurethane polymer, 0.1 to 10 parts by weight of water dispersible particles, and the balance water. The polarizing plate is arranged between the optical film and the priming coating formed by the priming coating compound. The method includes the steps of coating the priming coating compound on at least one side of the optical film and drying the optical film coated with the priming coating compound. The priming coating compound has excellent bonding performance, and can be contained in the polarizing plate without reducing the transparency of the polarizing plate and using additional procedures or devices.

Primer comprising a mixture, dissolved or dispersed in one or more solvents, of I) a pressure sensitive adhesive obtained by copolymerization of a) at least one acrylic ester of a linear primary alcohol, b) at least on acrylic ester of a branched, acyclic alcohol, and d) acrylic acid, II) at least one thermal crosslinker, and III) at least one chlorinated polyolefin.

The invention relates to the technical field of curved screen protection films, in particular to a screen protection film for protecting curved liquid crystal screens and a manufacturing method of thescreen protection film. The curved screen protection film structurally comprises an anti-scratching layer, a PET base material, an elastomer layer, a silica gel layer and a fluorine release film which are sequentially arranged. According to the protection film, the arranged elastomer layer is beneficial to improving the bending property and drop resistance of the protection film, and under cooperation with the silica gel layer arranged on a protection film body, improvement of the fixing and fitting property of the protection film is facilitated, so that the problem of edge warping is effectively solved, and the protection film is suitable for the design of large angles and radians of the edge positions of mobile phone screens. Through the reasonable arrangement of the structure and thickness of each layer, the protection film has the basic performance of a PET screen protection film, and meanwhile, the flexibility, drop resistance and edge warping resistance of the protection film are further improved.

An anchor layer formation composition, a pressure-sensitive adhesive layer-attached optical film, and an image display device are provided, in which the composition includes an oxazoline group-containing polymer and an ionic compound including a cation component and a sulfonyl group-containing anion component and is capable of forming an anchor layer that can improve the adhesion between a pressure-sensitive adhesive layer and an optical film when interposed therebetween, the pressure-sensitive adhesive layer-attached optical film has high durability and good reworkability and allows the pressure-sensitive adhesive layer to resist chipping, and the image display device has the pressure-sensitive adhesive layer-attached optical film.

The adhesive film includes an insulating film, an adhesive layer provided over one side of the insulating film, and an anchor coat layer provided between the one side of the insulating film and the adhesive layer. The adhesive layer is a copolymer polyamide resin which is soluble in a solvent at 25 degrees Celsius and has a melting point of 100 degrees Celsius or more and 150 degrees Celsius or less. The anchor coat layer enhances the adhesion between the insulating film and the adhesive layer.

A temporary adhesive material for a wafer processing, used for temporarily bonding a support and a wafer having a circuit-forming front surface and a back surface to be processed, contains a complex temporary adhesive material layer having a three-layered structure that includes a first temporary adhesive layer composed of a non-silicone thermoplastic resin layer capable of releasably adhering to the front surface of the wafer, a second temporary adhesive layer composed of a thermosetting siloxane polymer layer laminated on the first temporary adhesive layer, and a third temporary adhesive layer composed of a thermosetting siloxane-modified polymer layer laminated on the second temporary adhesive layer and capable of releasably adhering to the support. A wafer processing laminate and temporary adhesive material for a wafer processing facilitate temporary adhesion and separation, have excellent CVD resistance, and can increase productivity of thin wafers, and a method manufactures a thin wafer using the same.

To provide a pressure-sensitive adhesive that is used in processing an article such as a semiconductor wafer, the pressure-sensitive adhesive sheet is one that has a base, an intermediate layer and a pressure-sensitive adhesive layer in order, wherein the intermediate layer has an elastic modulus at elongation at 23° C. of 1 MPa or more and 100 MPa or less, the intermediate layer includes an acrylic polymer obtained by polymerization of a (meth) acrylic monomer mixture containing 1% by weight or more and 20% by weight or less of a nitrogen-containing acrylic monomer, the acrylic polymer containing 20% by weight or less of a polymer component having a molecular weight of 100,000 or less, and the base includes at least one film having an elastic modulus at in tension at 23° C. of 0.6 GPa or more.

A pressure-sensitive adhesive optical film of the present invention comprises: an optical film; and a pressure-sensitive adhesive layer laminated on at least one side of the optical film with an anchor layer interposed therebetween, wherein the anchor layer has a thickness of 5 to 300 nm, the pressure-sensitive adhesive layer has a thickness of 5 to 50 μm, at least one of the anchor layer and the pressure-sensitive adhesive layer is made from a ammonia-containing water-dispersible material, the layer made from the ammonia-containing water-dispersible material contains ammonia in an amount of 10 ng or more per 1 cm² of the pressure-sensitive adhesive optical film, wherein the amount is a measurement derived from the layer, and the pressure-sensitive adhesive optical film contains ammonia in a total amount of 2000 ng or less per 1 cm² of the pressure-sensitive adhesive optical film. The pressure-sensitive adhesive optical film has good appearance and high durability with which alterations in optical properties can be kept small even in high-temperature, high-humidity environments.

The invention discloses coloring layer coating suitable for silver alumite hot stamping foils and a preparation method thereof. Paint films of silver alumite hot stamping foils in the prior art are prone to efflorescence; in gold stamping, the defects of gold flying, powder falling and the like are prone to happening; thus, hot stamping quality and a production efficiency are affected. The coloring layer coating disclosed by the invention is prepared from the following raw materials in parts by weight: 15 to 25 parts of thermoplastic methacrylic resin, 1 to 5 parts of chloride-acetate resin, 1to 8 parts of styrene-maleic anhydride copolymer, 1 to 10 parts of cellulose acetate butyrate, 1 to 10 parts of methyl isobornyl acrylate, 1 to 5 parts of impact modifier and 50 to 70 parts of solvent. According to the coloring layer coating disclosed by the invention, the impact modifier is added into the formula ingredients, so that paint film toughness is effectively improved; meanwhile, the coloring layer coating has the characteristics of moderate viscosity, good adhesion with aluminum layers, simple production technology easy to control, stable quality, convenience in long-time storageand the like; a coloring layer paint film of alumite containing the coloring layer coating has the characteristics of high glossiness, large hardness, toughness, wear resistance and the like.

The present invention relates to a pressure-sensitive adhesive sheet for processing, which includes a substrate; a pressure-sensitive adhesive layer containing a radiation-polymerizable compound; and an interlayer containing an acrylic polymer having a glass transition temperature of 20° C. or higher as a main component, the interlayer being disposed between the substrate and the pressure-sensitive adhesive layer. The pressure-sensitive adhesive sheet of the invention is excellent in pressure-sensitive adhesive properties, releasability, and expansibility.

The invention discloses a halogen-free hot-melt adhesive film with high metal-bond force and good fire resistance and a preparing method thereof. The halogen-free hot-melt adhesive film comprises a polyester film, a refractory coating and a metal-bond coating, wherein the refractory coating is arranged between the polyester film and the metal-bond coating; the metal-bond coating is prepared from,by mass, 50-80% of saturated polyester resin A, 5-30% of saturated polyester resin B, 4-10% of halogen-freefire retardant A, 6-10% of halogen-freefire retardant B, 0.2-2% of isocyanate and 0.5-8% of filler. The polyester film serves as a base film and is coated with the refractory coating and the metal-bond coating, the metal-bond coating arranged on the outer layer has high bonding force for metal, the refractory coating arranged on the inner layer has high fire resistance, accordingly the fire resistance is improved, and the halogen-free hot-melt adhesive film still has high metal-bond forcefor wrapped tinned flat copper wires at the same time.

The invention discloses a preparation method of a hot melt adhesive film for a vehicle flexible flat cable (FFC) wire and the hot melt adhesive film. The preparation method comprises the following steps: A, preparing a primer coating agent: step A1, adding 20-40 parts by mass of medium-molecular-weight saturated polyester and 60-80 parts by mass of a butanone-toluene solvent into a reaction kettle, and carrying out dissolving by stirring, wherein the stirring speed is 500-1000 r/min; and step A2, after the mixture in the reaction kettle in the step A1 is uniformly dissolved by stirring, carrying out cooling to the room temperature, then adding 0.1-5 parts by mass of an anti-adhesion agent and 0.5-20 part by mass of a low-temperature closed isocyanate curing agent, and uniformly carrying out dispersing by stirring. The low-temperature closed isocyanate curing agent is added into the primer coating agent, so that chemical cross-linking of the primer coating agent to a polyethylene terephthalate PET polyester film and a hot melt adhesive is increased, and the adhesive force of the primer coating agent to the PET polyester film and the hot melt adhesive under a high-temperature condition and a low-temperature condition is improved. A closed type latent curing agent is adopted in the hot melt adhesive, so that the cross-linking degree and cohesion of the hot melt adhesive are increased, heat resistance and hydrolysis resistance are improved, cracking of the hot melt adhesive is avoided, and blistering and layering between the PET polyester film and the hot melt adhesive are avoided.

The invention discloses an antimony-free flame-retardant hot-melt adhesive film for FFCs and a preparation method thereof. The hot-melt adhesive film comprises a PET insulating layer, a pre-coating layer and an adhesive layer, wherein the pre-coating layer is disposed between the PET insulating layer and the adhesive layer, and the thickness of the adhesive layer is smaller than the thickness of the PET insulating layer; the adhesive layer comprises, by weight percentage, 25-35% of a saturated polyester resin A, 5-10% of a saturated polyester resin B, 5-10% of a saturated polyester resin C, 28-36% of a flame retardant a, 6-12% of a flame retardant b, 0.5-1% of a curing agent and 12.5-14% of a balance material; the saturated polyester resin C is a DOPO phosphorus-containing modified flame-retardant saturated polyester resin, and the flame retardant a and the flame retardant b are both an antimony-free flame retardant. The antimony-free flame retardant is more environmentally friendly and can achieve the flame-retardant effect of VW-1.