6 results about "Urethane acrylate" patented technology

The invention relates to a bistable composite film of polymer dispersed liquid crystals and a manufacturing method thereof. The composite film is composed of two pieces of flexible transparent conducting film and a layer of polymer dispersed liquid crystals, wherein, the two pieces of flexible transparent conducting film are etched with a coplanar conversion electrode; the layer of polymer dispersed liquid crystals is highly active polyurethane acrylic ester; the liquid crystals are nematic phase liquid crystal molecules with large birefringence. When imposing a coplanar horizontal electric field, the bistable composite film of the polymer dispersed liquid crystals is in closed and scattering state and still keeps the scattering state after the electric field is eliminated; when imposing a coplanar comb-shaped electrode short-circuit on an opposite electric field, the bistable composite film of the polymer dispersed liquid crystals is in open and transparent state and still keeps the transparent state after the electric field is eliminated. The bistable composite film of the polymer dispersed liquid crystals has the manufacturing method that: after being mixed, the highly active polymer and the nematic phase liquid crystals with the large birefringence are separated to form the structure that the polymer wraps crystal liquid droplets. The invention uses the simple design proposal and depends on changing the direction of the electric field to realize zero field stability of the polymer dispersed liquid crystals so as to further acquire an electronic-paper technology with better energy conservation; or the bistable composite film of polymer dispersed liquid crystals can be specially applied to the fields of building decoration and jewelry counters and so on as a dimming function film which is clipped in glass.

The invention provides a high-fidelity durable lightfast UV/UVLED curing coating for a note and a preparation method of the high-fidelity durable lightfast UV/UVLED curing coating. The high-fidelity durable lightfast UV/UVLED curing coating comprises a prepolymer, a pre-polymerization monomer, an initiator, an assistant, a stabilizer and an amine type accelerator, wherein the prepolymer is one of or a combination of more of aliphatic modified epoxy acrylate, acid modified urethane acrylate, aliphatic urethane acrylate, and aromatic urethane acrylate; the pre-polymerization monomer is one of or a combination of more of methacrylate, acrylate, and a vinyl ether monomer. The UV/UVLED coating has the characteristics of transparency, high whiteness and low glossiness, the original color of a printing material is not changed after the surface of the printing material is coated with the coating, and the coating is high in fidelity, and has the physical and chemical resistant properties meeting the requirements of the note when applied to the note.

The invention provides an anti-fogging film, which comprises a release layer, an exhaust glue-line, a substrate layer, an anti-fogging layer and a protective film layer, which are laminated in order.The anti-fogging layer is a hydrophilic anti-fogging layer and is formed after ultraviolet curing of hydrophilic polyurethane acrylate. The light transmittance of the anti-fogging layer is greater than 90%. The anti-fogging film has continuous anti-fogging performance and also has excellent functions such as high light transmittance, wear resistance, ultraviolet protection, heat insulation and thelike. Thus, the anti-fogging film is very suitable for the product fields of automobile, ship and the like with special driving environment.

The invention provides high-adhesion wear-resistant UV-LED printing ink, which is prepared from 41 to 46 parts of high-functionality polyurethane acrylate, 13 to 18 parts of adhesion promoter, 30 to 35 parts of cyclopentene ethyl isocyanuric acid triacrylate, 6 to 12 parts of photoinitiator, 2 to 4 parts of auxiliary agent and 3 to 5 parts of filler. The high-functionality polyurethane acrylate is taken as a prepolymer, thecyclopentene ethyl isocyanuric acid triacrylate is taken as an active monomer, the adhesion promoter is added as a modifier, then the photoinitiator, the auxiliary agent and the filler are added, so that the prepared UV-LED printing ink has high friction resistance and adhesion, and the service life pf a keyboard smeared with the UV-LED printing ink can be prolonged.